Merge tag 'platform-drivers-x86-v6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86HEADmaster

Pull x86 platform driver updates from Hans de Goede:

 - New drivers/platform/arm64 directory for arm64 embedded-controller
   drivers

 - New drivers:
    - Acer Aspire 1 embedded controllers (for arm64 models)
    - ACPI quickstart PNP0C32 buttons
    - Dell All-In-One backlight support (dell-uart-backlight)
    - Lenovo WMI camera buttons
    - Lenovo Yoga Tablet 2 Pro 1380F/L fast charging
    - MeeGoPad ANX7428 Type-C Cross Switch (power sequencing only)
    - MSI WMI sensors (fan speed sensors only for now)

 - Asus WMI:
    - 2024 ROG Mini-LED support
    - MCU powersave support
    - Vivobook GPU MUX support
    - Misc. other improvements

 - Ideapad laptop:
    - Export FnLock LED as LED class device
    - Switch platform profiles using thermal management key

 - Intel drivers:
    - IFS: various improvements
    - PMC: Lunar Lake support
    - SDSI: various improvements
    - TPMI/ISST: various improvements
    - tools: intel-speed-select: various improvements

 - MS Surface drivers:
    - Fan profile switching support
    - Surface Pro thermal sensors support

 - ThinkPad ACPI:
    - Reworked hotkey support to use sparse keymaps
    - Add support for new trackpoint-doubletap, Fn+N and Fn+G hotkeys

 - WMI core:
    - New WMI driver development guide

 - x86 Android tablets:
    - Lenovo Yoga Tablet 2 Pro 1380F/L support
    - Xiaomi MiPad 2 status LED and bezel touch buttons backlight
      support

 - Miscellaneous cleanups / fixes / improvements

* tag 'platform-drivers-x86-v6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (128 commits)
  platform/x86: Add new MeeGoPad ANX7428 Type-C Cross Switch driver
  devm-helpers: Fix a misspelled cancellation in the comments
  tools arch x86: Add dell-uart-backlight-emulator
  platform/x86: Add new Dell UART backlight driver
  platform/x86: x86-android-tablets: Create LED device for Xiaomi Pad 2 bottom bezel touch buttons
  platform/x86: x86-android-tablets: Xiaomi pad2 RGB LED fwnode updates
  platform/x86: x86-android-tablets: Pass struct device to init()
  platform/x86/amd: pmc: Add new ACPI ID AMDI000B
  platform/x86/amd: pmf: Add new ACPI ID AMDI0105
  platform/x86: p2sb: Don't init until unassigned resources have been assigned
  platform/surface: aggregator: Log critical errors during SAM probing
  platform/x86: ISST: Support SST-BF and SST-TF per level
  platform/x86/fujitsu-laptop: Replace sprintf() with sysfs_emit()
  tools/power/x86/intel-speed-select: v1.19 release
  tools/power/x86/intel-speed-select: Display CPU as None for -1
  tools/power/x86/intel-speed-select: SST BF/TF support per level
  tools/power/x86/intel-speed-select: Increase number of CPUs displayed
  tools/power/x86/intel-speed-select: Present all TRL levels for turbo-freq
  tools/power/x86/intel-speed-select: Fix display for unsupported levels
  tools/power/x86/intel-speed-select: Support multiple dies
  ...

85 files changed, 5938 insertions, 1197 deletions

diff --git a/Documentation/ABI/testing/debugfs-msi-wmi-platform b/Documentation/ABI/testing/debugfs-msi-wmi-platform
new file mode 100644
index 00000000000000..71f9992168d89e
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-msi-wmi-platform
@@ -0,0 +1,14 @@
+What:		/sys/kernel/debug/msi-wmi-platform-<wmi_device_name>/*
+Date:		April 2024
+KernelVersion:	6.10
+Contact:	Armin Wolf <W_Armin@gmx.de>
+Description:
+		This file allows to execute the associated WMI method with the same name.
+
+		To start the execution, write a  buffer containing the method arguments
+		at file offset 0. Partial writes or writes at a different offset are not
+		supported.
+
+		The buffer returned by the WMI method can then be read from the file.
+
+		See Documentation/wmi/devices/msi-wmi-platform.rst for details.
diff --git a/Documentation/ABI/testing/sysfs-platform-asus-wmi b/Documentation/ABI/testing/sysfs-platform-asus-wmi
index 8a7e25bde08531..28144371a0f1a3 100644
--- a/Documentation/ABI/testing/sysfs-platform-asus-wmi
+++ b/Documentation/ABI/testing/sysfs-platform-asus-wmi
@@ -126,6 +126,14 @@ Description:
 		Change the mini-LED mode:
 			* 0 - Single-zone,
 			* 1 - Multi-zone
+			* 2 - Multi-zone strong (available on newer generation mini-led)
+
+What:		/sys/devices/platform/<platform>/available_mini_led_mode
+Date:		Apr 2024
+KernelVersion:	6.10
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		List the available mini-led modes.
 
 What:		/sys/devices/platform/<platform>/ppt_pl1_spl
 Date:		Jun 2023
@@ -186,3 +194,21 @@ Contact:	"Luke Jones" <luke@ljones.dev>
 Description:
 		Set the target temperature limit of the Nvidia dGPU:
 			* min=75, max=87
+
+What:		/sys/devices/platform/<platform>/boot_sound
+Date:		Apr 2024
+KernelVersion:	6.10
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		Set if the BIOS POST sound is played on boot.
+			* 0 - False,
+			* 1 - True
+
+What:		/sys/devices/platform/<platform>/mcu_powersave
+Date:		Apr 2024
+KernelVersion:	6.10
+Contact:	"Luke Jones" <luke@ljones.dev>
+Description:
+		Set if the MCU can go in to low-power mode on system sleep
+			* 0 - False,
+			* 1 - True
diff --git a/Documentation/devicetree/bindings/platform/acer,aspire1-ec.yaml b/Documentation/devicetree/bindings/platform/acer,aspire1-ec.yaml
new file mode 100644
index 00000000000000..7cb0134134ffa6
--- /dev/null
+++ b/Documentation/devicetree/bindings/platform/acer,aspire1-ec.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/platform/acer,aspire1-ec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Acer Aspire 1 Embedded Controller
+
+maintainers:
+  - Nikita Travkin <nikita@trvn.ru>
+
+description:
+  The Acer Aspire 1 laptop uses an embedded controller to control battery
+  and charging as well as to provide a set of misc features such as the
+  laptop lid status and HPD events for the USB Type-C DP alt mode.
+
+properties:
+  compatible:
+    const: acer,aspire1-ec
+
+  reg:
+    const: 0x76
+
+  interrupts:
+    maxItems: 1
+
+  connector:
+    $ref: /schemas/connector/usb-connector.yaml#
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        embedded-controller@76 {
+            compatible = "acer,aspire1-ec";
+            reg = <0x76>;
+
+            interrupts-extended = <&tlmm 30 IRQ_TYPE_LEVEL_LOW>;
+
+            connector {
+                compatible = "usb-c-connector";
+
+                port {
+                    ec_dp_in: endpoint {
+                        remote-endpoint = <&mdss_dp_out>;
+                    };
+                };
+            };
+        };
+    };
diff --git a/Documentation/wmi/devices/msi-wmi-platform.rst b/Documentation/wmi/devices/msi-wmi-platform.rst
new file mode 100644
index 00000000000000..29b1b2e6d42cdc
--- /dev/null
+++ b/Documentation/wmi/devices/msi-wmi-platform.rst
@@ -0,0 +1,194 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+===================================================
+MSI WMI Platform Features driver (msi-wmi-platform)
+===================================================
+
+Introduction
+============
+
+Many MSI notebooks support various features like reading fan sensors. This features are controlled
+by the embedded controller, with the ACPI firmware exposing a standard ACPI WMI interface on top
+of the embedded controller interface.
+
+WMI interface description
+=========================
+
+The WMI interface description can be decoded from the embedded binary MOF (bmof)
+data using the `bmfdec <https://github.com/pali/bmfdec>`_ utility:
+
+::
+
+  [WMI, Locale("MS\0x409"),
+   Description("This class contains the definition of the package used in other classes"),
+   guid("{ABBC0F60-8EA1-11d1-00A0-C90629100000}")]
+  class Package {
+    [WmiDataId(1), read, write, Description("16 bytes of data")] uint8 Bytes[16];
+  };
+
+  [WMI, Locale("MS\0x409"),
+   Description("This class contains the definition of the package used in other classes"),
+   guid("{ABBC0F63-8EA1-11d1-00A0-C90629100000}")]
+  class Package_32 {
+    [WmiDataId(1), read, write, Description("32 bytes of data")] uint8 Bytes[32];
+  };
+
+  [WMI, Dynamic, Provider("WmiProv"), Locale("MS\0x409"),
+   Description("Class used to operate methods on a package"),
+   guid("{ABBC0F6E-8EA1-11d1-00A0-C90629100000}")]
+  class MSI_ACPI {
+    [key, read] string InstanceName;
+    [read] boolean Active;
+
+    [WmiMethodId(1), Implemented, read, write, Description("Return the contents of a package")]
+    void GetPackage([out, id(0)] Package Data);
+
+    [WmiMethodId(2), Implemented, read, write, Description("Set the contents of a package")]
+    void SetPackage([in, id(0)] Package Data);
+
+    [WmiMethodId(3), Implemented, read, write, Description("Return the contents of a package")]
+    void Get_EC([out, id(0)] Package_32 Data);
+
+    [WmiMethodId(4), Implemented, read, write, Description("Set the contents of a package")]
+    void Set_EC([in, id(0)] Package_32 Data);
+
+    [WmiMethodId(5), Implemented, read, write, Description("Return the contents of a package")]
+    void Get_BIOS([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(6), Implemented, read, write, Description("Set the contents of a package")]
+    void Set_BIOS([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(7), Implemented, read, write, Description("Return the contents of a package")]
+    void Get_SMBUS([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(8), Implemented, read, write, Description("Set the contents of a package")]
+    void Set_SMBUS([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(9), Implemented, read, write, Description("Return the contents of a package")]
+    void Get_MasterBattery([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(10), Implemented, read, write, Description("Set the contents of a package")]
+    void Set_MasterBattery([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(11), Implemented, read, write, Description("Return the contents of a package")]
+    void Get_SlaveBattery([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(12), Implemented, read, write, Description("Set the contents of a package")]
+    void Set_SlaveBattery([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(13), Implemented, read, write, Description("Return the contents of a package")]
+    void Get_Temperature([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(14), Implemented, read, write, Description("Set the contents of a package")]
+    void Set_Temperature([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(15), Implemented, read, write, Description("Return the contents of a package")]
+    void Get_Thermal([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(16), Implemented, read, write, Description("Set the contents of a package")]
+    void Set_Thermal([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(17), Implemented, read, write, Description("Return the contents of a package")]
+    void Get_Fan([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(18), Implemented, read, write, Description("Set the contents of a package")]
+    void Set_Fan([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(19), Implemented, read, write, Description("Return the contents of a package")]
+    void Get_Device([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(20), Implemented, read, write, Description("Set the contents of a package")]
+    void Set_Device([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(21), Implemented, read, write, Description("Return the contents of a package")]
+    void Get_Power([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(22), Implemented, read, write, Description("Set the contents of a package")]
+    void Set_Power([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(23), Implemented, read, write, Description("Return the contents of a package")]
+    void Get_Debug([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(24), Implemented, read, write, Description("Set the contents of a package")]
+    void Set_Debug([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(25), Implemented, read, write, Description("Return the contents of a package")]
+    void Get_AP([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(26), Implemented, read, write, Description("Set the contents of a package")]
+    void Set_AP([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(27), Implemented, read, write, Description("Return the contents of a package")]
+    void Get_Data([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(28), Implemented, read, write, Description("Set the contents of a package")]
+    void Set_Data([in, out, id(0)] Package_32 Data);
+
+    [WmiMethodId(29), Implemented, read, write, Description("Return the contents of a package")]
+    void Get_WMI([out, id(0)] Package_32 Data);
+  };
+
+Due to a peculiarity in how Windows handles the ``CreateByteField()`` ACPI operator (errors only
+happen when a invalid byte field is ultimately accessed), all methods require a 32 byte input
+buffer, even if the Binay MOF says otherwise.
+
+The input buffer contains a single byte to select the subfeature to be accessed and 31 bytes of
+input data, the meaning of which depends on the subfeature being accessed.
+
+The output buffer contains a singe byte which signals success or failure (``0x00`` on failure)
+and 31 bytes of output data, the meaning if which depends on the subfeature being accessed.
+
+WMI method Get_EC()
+-------------------
+
+Returns embedded controller information, the selected subfeature does not matter. The output
+data contains a flag byte and a 28 byte controller firmware version string.
+
+The first 4 bits of the flag byte contain the minor version of the embedded controller interface,
+with the next 2 bits containing the major version of the embedded controller interface.
+
+The 7th bit signals if the embedded controller page chaged (exact meaning is unknown), and the
+last bit signals if the platform is a Tigerlake platform.
+
+The MSI software seems to only use this interface when the last bit is set.
+
+WMI method Get_Fan()
+--------------------
+
+Fan speed sensors can be accessed by selecting subfeature ``0x00``. The output data contains
+up to four 16-bit fan speed readings in big-endian format. Most machines do not support all
+four fan speed sensors, so the remaining reading are hardcoded to ``0x0000``.
+
+The fan RPM readings can be calculated with the following formula:
+
+        RPM = 480000 / <fan speed reading>
+
+If the fan speed reading is zero, then the fan RPM is zero too.
+
+WMI method Get_WMI()
+--------------------
+
+Returns the version of the ACPI WMI interface, the selected subfeature does not matter.
+The output data contains two bytes, the first one contains the major version and the last one
+contains the minor revision of the ACPI WMI interface.
+
+The MSI software seems to only use this interface when the major version is greater than two.
+
+Reverse-Engineering the MSI WMI Platform interface
+==================================================
+
+.. warning:: Randomly poking the embedded controller interface can potentially cause damage
+             to the machine and other unwanted side effects, please be careful.
+
+The underlying embedded controller interface is used by the ``msi-ec`` driver, and it seems
+that many methods just copy a part of the embedded controller memory into the output buffer.
+
+This means that the remaining WMI methods can be reverse-engineered by looking which part of
+the embedded controller memory is accessed by the ACPI AML code. The driver also supports a
+debugfs interface for directly executing WMI methods. Additionally, any safety checks regarding
+unsupported hardware can be disabled by loading the module with ``force=true``.
+
+More information about the MSI embedded controller interface can be found at the
+`msi-ec project <https://github.com/BeardOverflow/msi-ec>`_.
+
+Special thanks go to github user `glpnk` for showing how to decode the fan speed readings.
diff --git a/Documentation/wmi/driver-development-guide.rst b/Documentation/wmi/driver-development-guide.rst
new file mode 100644
index 00000000000000..429137b2f63236
--- /dev/null
+++ b/Documentation/wmi/driver-development-guide.rst
@@ -0,0 +1,178 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+============================
+WMI driver development guide
+============================
+
+The WMI subsystem provides a rich driver API for implementing WMI drivers,
+documented at Documentation/driver-api/wmi.rst. This document will serve
+as an introductory guide for WMI driver writers using this API. It is supposed
+to be a successor to the original LWN article [1]_ which deals with WMI drivers
+using the deprecated GUID-based WMI interface.
+
+Obtaining WMI device information
+--------------------------------
+
+Before developing an WMI driver, information about the WMI device in question
+must be obtained. The `lswmi <https://pypi.org/project/lswmi>`_ utility can be
+used to extract detailed WMI device information using the following command:
+
+::
+
+  lswmi -V
+
+The resulting output will contain information about all WMI devices available on
+a given machine, plus some extra information.
+
+In order to find out more about the interface used to communicate with a WMI device,
+the `bmfdec <https://github.com/pali/bmfdec>`_ utilities can be used to decode
+the Binary MOF (Managed Object Format) information used to describe WMI devices.
+The ``wmi-bmof`` driver exposes this information to userspace, see
+Documentation/wmi/devices/wmi-bmof.rst.
+
+In order to retrieve the decoded Binary MOF information, use the following command (requires root):
+
+::
+
+  ./bmf2mof /sys/bus/wmi/devices/05901221-D566-11D1-B2F0-00A0C9062910[-X]/bmof
+
+Sometimes, looking at the disassembled ACPI tables used to describe the WMI device
+helps in understanding how the WMI device is supposed to work. The path of the ACPI
+method associated with a given WMI device can be retrieved using the ``lswmi`` utility
+as mentioned above.
+
+Basic WMI driver structure
+--------------------------
+
+The basic WMI driver is build around the struct wmi_driver, which is then bound
+to matching WMI devices using a struct wmi_device_id table:
+
+::
+
+  static const struct wmi_device_id foo_id_table[] = {
+         { "936DA01F-9ABD-4D9D-80C7-02AF85C822A8", NULL },
+         { }
+  };
+  MODULE_DEVICE_TABLE(wmi, foo_id_table);
+
+  static struct wmi_driver foo_driver = {
+        .driver = {
+                .name = "foo",
+                .probe_type = PROBE_PREFER_ASYNCHRONOUS,        /* recommended */
+                .pm = pm_sleep_ptr(&foo_dev_pm_ops),            /* optional */
+        },
+        .id_table = foo_id_table,
+        .probe = foo_probe,
+        .remove = foo_remove,         /* optional, devres is preferred */
+        .notify = foo_notify,         /* optional, for event handling */
+        .no_notify_data = true,       /* optional, enables events containing no additional data */
+        .no_singleton = true,         /* required for new WMI drivers */
+  };
+  module_wmi_driver(foo_driver);
+
+The probe() callback is called when the WMI driver is bound to a matching WMI device. Allocating
+driver-specific data structures and initialising interfaces to other kernel subsystems should
+normally be done in this function.
+
+The remove() callback is then called when the WMI driver is unbound from a WMI device. In order
+to unregister interfaces to other kernel subsystems and release resources, devres should be used.
+This simplifies error handling during probe and often allows to omit this callback entirely, see
+Documentation/driver-api/driver-model/devres.rst for details.
+
+Please note that new WMI drivers are required to be able to be instantiated multiple times,
+and are forbidden from using any deprecated GUID-based WMI functions. This means that the
+WMI driver should be prepared for the scenario that multiple matching WMI devices are present
+on a given machine.
+
+Because of this, WMI drivers should use the state container design pattern as described in
+Documentation/driver-api/driver-model/design-patterns.rst.
+
+WMI method drivers
+------------------
+
+WMI drivers can call WMI device methods using wmidev_evaluate_method(), the
+structure of the ACPI buffer passed to this function is device-specific and usually
+needs some tinkering to get right. Looking at the ACPI tables containing the WMI
+device usually helps here. The method id and instance number passed to this function
+are also device-specific, looking at the decoded Binary MOF is usually enough to
+find the right values.
+
+The maximum instance number can be retrieved during runtime using wmidev_instance_count().
+
+Take a look at drivers/platform/x86/inspur_platform_profile.c for an example WMI method driver.
+
+WMI data block drivers
+----------------------
+
+WMI drivers can query WMI device data blocks using wmidev_block_query(), the
+structure of the returned ACPI object is again device-specific. Some WMI devices
+also allow for setting data blocks using wmidev_block_set().
+
+The maximum instance number can also be retrieved using wmidev_instance_count().
+
+Take a look at drivers/platform/x86/intel/wmi/sbl-fw-update.c for an example
+WMI data block driver.
+
+WMI event drivers
+-----------------
+
+WMI drivers can receive WMI events via the notify() callback inside the struct wmi_driver.
+The WMI subsystem will then take care of setting up the WMI event accordingly. Please note that
+the structure of the ACPI object passed to this callback is device-specific, and freeing the
+ACPI object is being done by the WMI subsystem, not the driver.
+
+The WMI driver core will take care that the notify() callback will only be called after
+the probe() callback has been called, and that no events are being received by the driver
+right before and after calling its remove() callback.
+
+However WMI driver developers should be aware that multiple WMI events can be received concurrently,
+so any locking (if necessary) needs to be provided by the WMI driver itself.
+
+In order to be able to receive WMI events containing no additional event data,
+the ``no_notify_data`` flag inside struct wmi_driver should be set to ``true``.
+
+Take a look at drivers/platform/x86/xiaomi-wmi.c for an example WMI event driver.
+
+Handling multiple WMI devices at once
+-------------------------------------
+
+There are many cases of firmware vendors using multiple WMI devices to control different aspects
+of a single physical device. This can make developing WMI drivers complicated, as those drivers
+might need to communicate with each other to present a unified interface to userspace.
+
+On such case involves a WMI event device which needs to talk to a WMI data block device or WMI
+method device upon receiving an WMI event. In such a case, two WMI drivers should be developed,
+one for the WMI event device and one for the other WMI device.
+
+The WMI event device driver has only one purpose: to receive WMI events, validate any additional
+event data and invoke a notifier chain. The other WMI driver adds itself to this notifier chain
+during probing and thus gets notified every time a WMI event is received. This WMI driver might
+then process the event further for example by using an input device.
+
+For other WMI device constellations, similar mechanisms can be used.
+
+Things to avoid
+---------------
+
+When developing WMI drivers, there are a couple of things which should be avoided:
+
+- usage of the deprecated GUID-based WMI interface which uses GUIDs instead of WMI device structs
+- bypassing of the WMI subsystem when talking to WMI devices
+- WMI drivers which cannot be instantiated multiple times.
+
+Many older WMI drivers violate one or more points from this list. The reason for
+this is that the WMI subsystem evolved significantly over the last two decades,
+so there is a lot of legacy cruft inside older WMI drivers.
+
+New WMI drivers are also required to conform to the linux kernel coding style as specified in
+Documentation/process/coding-style.rst. The checkpatch utility can catch many common coding style
+violations, you can invoke it with the following command:
+
+::
+
+  ./scripts/checkpatch.pl --strict <path to driver file>
+
+References
+==========
+
+.. [1] https://lwn.net/Articles/391230/
diff --git a/Documentation/wmi/index.rst b/Documentation/wmi/index.rst
index 537cff188e14ce..fec4b6ae97b3b5 100644
--- a/Documentation/wmi/index.rst
+++ b/Documentation/wmi/index.rst
@@ -8,6 +8,7 @@ WMI Subsystem
    :maxdepth: 1
 
    acpi-interface
+   driver-development-guide
    devices/index
 
 .. only::  subproject and html
diff --git a/MAINTAINERS b/MAINTAINERS
index eba75a361af082..e5dbbf1edafdfb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -258,6 +258,12 @@ L:	linux-acenic@sunsite.dk
 S:	Maintained
 F:	drivers/net/ethernet/alteon/acenic*
 
+ACER ASPIRE 1 EMBEDDED CONTROLLER DRIVER
+M:	Nikita Travkin <nikita@trvn.ru>
+S:	Maintained
+F:	Documentation/devicetree/bindings/platform/acer,aspire1-ec.yaml
+F:	drivers/platform/arm64/acer-aspire1-ec.c
+
 ACER ASPIRE ONE TEMPERATURE AND FAN DRIVER
 M:	Peter Kaestle <peter@piie.net>
 L:	platform-driver-x86@vger.kernel.org
@@ -354,6 +360,12 @@ B:	https://bugzilla.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
 F:	drivers/acpi/pmic/
 
+ACPI QUICKSTART DRIVER
+M:	Armin Wolf <W_Armin@gmx.de>
+L:	platform-driver-x86@vger.kernel.org
+S:	Maintained
+F:	drivers/platform/x86/quickstart.c
+
 ACPI SERIAL MULTI INSTANTIATE DRIVER
 M:	Hans de Goede <hdegoede@redhat.com>
 L:	platform-driver-x86@vger.kernel.org
@@ -3110,6 +3122,16 @@ S:	Maintained
 F:	arch/arm64/boot/Makefile
 F:	scripts/make_fit.py
 
+ARM64 PLATFORM DRIVERS
+M:	Hans de Goede <hdegoede@redhat.com>
+M:	Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
+R:	Bryan O'Donoghue <bryan.odonoghue@linaro.org>
+L:	platform-driver-x86@vger.kernel.org
+S:	Maintained
+Q:	https://patchwork.kernel.org/project/platform-driver-x86/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git
+F:	drivers/platform/arm64/
+
 ARM64 PORT (AARCH64 ARCHITECTURE)
 M:	Catalin Marinas <catalin.marinas@arm.com>
 M:	Will Deacon <will@kernel.org>
@@ -5291,7 +5313,6 @@ F:	lib/closure.c
 
 CMPC ACPI DRIVER
 M:	Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
-M:	Daniel Oliveira Nascimento <don@syst.com.br>
 L:	platform-driver-x86@vger.kernel.org
 S:	Supported
 F:	drivers/platform/x86/classmate-laptop.c
@@ -15191,6 +15212,14 @@ L:	platform-driver-x86@vger.kernel.org
 S:	Orphan
 F:	drivers/platform/x86/msi-wmi.c
 
+MSI WMI PLATFORM FEATURES
+M:	Armin Wolf <W_Armin@gmx.de>
+L:	platform-driver-x86@vger.kernel.org
+S:	Maintained
+F:	Documentation/ABI/testing/debugfs-msi-wmi-platform
+F:	Documentation/wmi/devices/msi-wmi-platform.rst
+F:	drivers/platform/x86/msi-wmi-platform.c
+
 MSI001 MEDIA DRIVER
 L:	linux-media@vger.kernel.org
 S:	Orphan
diff --git a/arch/arm64/boot/dts/qcom/sc7180-acer-aspire1.dts b/arch/arm64/boot/dts/qcom/sc7180-acer-aspire1.dts
index 5afcb8212f4900..3f0d3e33894a07 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-acer-aspire1.dts
+++ b/arch/arm64/boot/dts/qcom/sc7180-acer-aspire1.dts
@@ -255,7 +255,25 @@
 	clock-frequency = <400000>;
 	status = "okay";
 
-	/* embedded-controller@76 */
+	embedded-controller@76 {
+		compatible = "acer,aspire1-ec";
+		reg = <0x76>;
+
+		interrupts-extended = <&tlmm 30 IRQ_TYPE_LEVEL_LOW>;
+
+		pinctrl-0 = <&ec_int_default>;
+		pinctrl-names = "default";
+
+		connector {
+			compatible = "usb-c-connector";
+
+			port {
+				ec_dp_in: endpoint {
+					remote-endpoint = <&mdss_dp_out>;
+				};
+			};
+		};
+	};
 };
 
 &i2c4 {
@@ -419,6 +437,19 @@
 	status = "okay";
 };
 
+&mdss_dp {
+	data-lanes = <0 1>;
+
+	vdda-1p2-supply = <&vreg_l3c_1p2>;
+	vdda-0p9-supply = <&vreg_l4a_0p8>;
+
+	status = "okay";
+};
+
+&mdss_dp_out {
+	remote-endpoint = <&ec_dp_in>;
+};
+
 &mdss_dsi0 {
 	vdda-supply = <&vreg_l3c_1p2>;
 	status = "okay";
@@ -857,6 +888,13 @@
 		bias-disable;
 	};
 
+	ec_int_default: ec-int-default-state {
+		pins = "gpio30";
+		function = "gpio";
+		drive-strength = <2>;
+		bias-disable;
+	};
+
 	edp_bridge_irq_default: edp-bridge-irq-default-state {
 		pins = "gpio11";
 		function = "gpio";
diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
index d418462ab79192..4a9704730224ad 100644
--- a/drivers/acpi/platform_profile.c
+++ b/drivers/acpi/platform_profile.c
@@ -136,6 +136,45 @@ void platform_profile_notify(void)
 }
 EXPORT_SYMBOL_GPL(platform_profile_notify);
 
+int platform_profile_cycle(void)
+{
+	enum platform_profile_option profile;
+	enum platform_profile_option next;
+	int err;
+
+	err = mutex_lock_interruptible(&profile_lock);
+	if (err)
+		return err;
+
+	if (!cur_profile) {
+		mutex_unlock(&profile_lock);
+		return -ENODEV;
+	}
+
+	err = cur_profile->profile_get(cur_profile, &profile);
+	if (err) {
+		mutex_unlock(&profile_lock);
+		return err;
+	}
+
+	next = find_next_bit_wrap(cur_profile->choices, PLATFORM_PROFILE_LAST,
+				  profile + 1);
+
+	if (WARN_ON(next == PLATFORM_PROFILE_LAST)) {
+		mutex_unlock(&profile_lock);
+		return -EINVAL;
+	}
+
+	err = cur_profile->profile_set(cur_profile, next);
+	mutex_unlock(&profile_lock);
+
+	if (!err)
+		sysfs_notify(acpi_kobj, NULL, "platform_profile");
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(platform_profile_cycle);
+
 int platform_profile_register(struct platform_profile_handler *pprof)
 {
 	int err;
diff --git a/drivers/platform/Kconfig b/drivers/platform/Kconfig
index 868b20361769c3..81a298517df2db 100644
--- a/drivers/platform/Kconfig
+++ b/drivers/platform/Kconfig
@@ -14,3 +14,5 @@ source "drivers/platform/olpc/Kconfig"
 source "drivers/platform/surface/Kconfig"
 
 source "drivers/platform/x86/Kconfig"
+
+source "drivers/platform/arm64/Kconfig"
diff --git a/drivers/platform/Makefile b/drivers/platform/Makefile
index 41640172975a79..fbbe4f77aa5d7d 100644
--- a/drivers/platform/Makefile
+++ b/drivers/platform/Makefile
@@ -11,3 +11,4 @@ obj-$(CONFIG_OLPC_EC)		+= olpc/
 obj-$(CONFIG_GOLDFISH)		+= goldfish/
 obj-$(CONFIG_CHROME_PLATFORMS)	+= chrome/
 obj-$(CONFIG_SURFACE_PLATFORMS)	+= surface/
+obj-$(CONFIG_ARM64)		+= arm64/
diff --git a/drivers/platform/arm64/Kconfig b/drivers/platform/arm64/Kconfig
new file mode 100644
index 00000000000000..8fdca0f8e9097d
--- /dev/null
+++ b/drivers/platform/arm64/Kconfig
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# EC-like Drivers for aarch64 based devices.
+#
+
+menuconfig ARM64_PLATFORM_DEVICES
+	bool "ARM64 Platform-Specific Device Drivers"
+	depends on ARM64 || COMPILE_TEST
+	default y
+	help
+	  Say Y here to get to see options for platform-specific device drivers
+	  for arm64 based devices, primarily EC-like device drivers.
+	  This option alone does not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
+
+if ARM64_PLATFORM_DEVICES
+
+config EC_ACER_ASPIRE1
+	tristate "Acer Aspire 1 Embedded Controller driver"
+	depends on I2C
+	depends on DRM
+	depends on POWER_SUPPLY
+	depends on INPUT
+	help
+	  Say Y here to enable the EC driver for the (Snapdragon-based)
+	  Acer Aspire 1 laptop. The EC handles battery and charging
+	  monitoring as well as some misc functions like the lid sensor
+	  and USB Type-C DP HPD events.
+
+	  This driver provides battery and AC status support for the mentioned
+	  laptop where this information is not properly exposed via the
+	  standard ACPI devices.
+
+endif # ARM64_PLATFORM_DEVICES
diff --git a/drivers/platform/arm64/Makefile b/drivers/platform/arm64/Makefile
new file mode 100644
index 00000000000000..4fcc9855579be0
--- /dev/null
+++ b/drivers/platform/arm64/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for linux/drivers/platform/arm64
+#
+# This dir should only include drivers for EC-like devices.
+#
+
+obj-$(CONFIG_EC_ACER_ASPIRE1)	+= acer-aspire1-ec.o
diff --git a/drivers/platform/arm64/acer-aspire1-ec.c b/drivers/platform/arm64/acer-aspire1-ec.c
new file mode 100644
index 00000000000000..dbb1cce139654a
--- /dev/null
+++ b/drivers/platform/arm64/acer-aspire1-ec.c
@@ -0,0 +1,562 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2024, Nikita Travkin <nikita@trvn.ru> */
+
+#include <asm-generic/unaligned.h>
+#include <drm/drm_bridge.h>
+#include <linux/bits.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/power_supply.h>
+#include <linux/usb/typec_mux.h>
+#include <linux/workqueue_types.h>
+
+#define MILLI_TO_MICRO			1000
+
+#define ASPIRE_EC_EVENT			0x05
+
+#define ASPIRE_EC_EVENT_WATCHDOG	0x20
+#define ASPIRE_EC_EVENT_KBD_BKL_ON	0x57
+#define ASPIRE_EC_EVENT_KBD_BKL_OFF	0x58
+#define ASPIRE_EC_EVENT_LID_CLOSE	0x9b
+#define ASPIRE_EC_EVENT_LID_OPEN	0x9c
+#define ASPIRE_EC_EVENT_BKL_UNBLANKED	0x9d
+#define ASPIRE_EC_EVENT_BKL_BLANKED	0x9e
+#define ASPIRE_EC_EVENT_FG_INF_CHG	0x85
+#define ASPIRE_EC_EVENT_FG_STA_CHG	0xc6
+#define ASPIRE_EC_EVENT_HPD_DIS		0xa3
+#define ASPIRE_EC_EVENT_HPD_CON		0xa4
+
+#define ASPIRE_EC_FG_DYNAMIC		0x07
+#define ASPIRE_EC_FG_STATIC		0x08
+
+#define ASPIRE_EC_FG_FLAG_PRESENT	BIT(0)
+#define ASPIRE_EC_FG_FLAG_FULL		BIT(1)
+#define ASPIRE_EC_FG_FLAG_DISCHARGING	BIT(2)
+#define ASPIRE_EC_FG_FLAG_CHARGING	BIT(3)
+
+#define ASPIRE_EC_RAM_READ		0x20
+#define ASPIRE_EC_RAM_WRITE		0x21
+
+#define ASPIRE_EC_RAM_WATCHDOG		0x19
+#define ASPIRE_EC_WATCHDOG_BIT		BIT(6)
+
+#define ASPIRE_EC_RAM_KBD_MODE		0x43
+
+#define ASPIRE_EC_RAM_KBD_FN_EN		BIT(0)
+#define ASPIRE_EC_RAM_KBD_MEDIA_ON_TOP	BIT(5)
+#define ASPIRE_EC_RAM_KBD_ALWAYS_SET	BIT(6)
+#define ASPIRE_EC_RAM_KBD_NUM_LAYER_EN	BIT(7)
+
+#define ASPIRE_EC_RAM_KBD_MODE_2	0x60
+
+#define ASPIRE_EC_RAM_KBD_MEDIA_NOTIFY	BIT(3)
+
+#define ASPIRE_EC_RAM_HPD_STATUS	0xf4
+#define ASPIRE_EC_HPD_CONNECTED		0x03
+
+#define ASPIRE_EC_RAM_LID_STATUS	0x4c
+#define ASPIRE_EC_LID_OPEN		BIT(6)
+
+#define ASPIRE_EC_RAM_ADP		0x40
+#define ASPIRE_EC_AC_STATUS		BIT(0)
+
+struct aspire_ec {
+	struct i2c_client *client;
+	struct power_supply *bat_psy;
+	struct power_supply *adp_psy;
+	struct input_dev *idev;
+
+	bool bridge_configured;
+	struct drm_bridge bridge;
+	struct work_struct work;
+};
+
+static int aspire_ec_ram_read(struct i2c_client *client, u8 off, u8 *data, u8 data_len)
+{
+	i2c_smbus_write_byte_data(client, ASPIRE_EC_RAM_READ, off);
+	i2c_smbus_read_i2c_block_data(client, ASPIRE_EC_RAM_READ, data_len, data);
+	return 0;
+}
+
+static int aspire_ec_ram_write(struct i2c_client *client, u8 off, u8 data)
+{
+	u8 tmp[2] = {off, data};
+
+	i2c_smbus_write_i2c_block_data(client, ASPIRE_EC_RAM_WRITE, sizeof(tmp), tmp);
+	return 0;
+}
+
+static irqreturn_t aspire_ec_irq_handler(int irq, void *data)
+{
+	struct aspire_ec *ec = data;
+	int id;
+	u8 tmp;
+
+	/*
+	 * The original ACPI firmware actually has a small sleep in the handler.
+	 *
+	 * It seems like in most cases it's not needed but when the device
+	 * just exits suspend, our i2c driver has a brief time where data
+	 * transfer is not possible yet. So this delay allows us to suppress
+	 * quite a bunch of spurious error messages in dmesg. Thus it's kept.
+	 */
+	usleep_range(15000, 30000);
+
+	id = i2c_smbus_read_byte_data(ec->client, ASPIRE_EC_EVENT);
+	if (id < 0) {
+		dev_err(&ec->client->dev, "Failed to read event id: %pe\n", ERR_PTR(id));
+		return IRQ_HANDLED;
+	}
+
+	switch (id) {
+	case 0x0: /* No event */
+		break;
+
+	case ASPIRE_EC_EVENT_WATCHDOG:
+		/*
+		 * Here acpi responds to the event and clears some bit.
+		 * Notify (\_SB.I2C3.BAT1, 0x81) // Information Change
+		 * Notify (\_SB.I2C3.ADP1, 0x80) // Status Change
+		 */
+		aspire_ec_ram_read(ec->client, ASPIRE_EC_RAM_WATCHDOG, &tmp, sizeof(tmp));
+		tmp &= ~ASPIRE_EC_WATCHDOG_BIT;
+		aspire_ec_ram_write(ec->client, ASPIRE_EC_RAM_WATCHDOG, tmp);
+		break;
+
+	case ASPIRE_EC_EVENT_LID_CLOSE:
+		/* Notify (\_SB.LID0, 0x80) // Status Change */
+		input_report_switch(ec->idev, SW_LID, 1);
+		input_sync(ec->idev);
+		break;
+
+	case ASPIRE_EC_EVENT_LID_OPEN:
+		/* Notify (\_SB.LID0, 0x80) // Status Change */
+		input_report_switch(ec->idev, SW_LID, 0);
+		input_sync(ec->idev);
+		break;
+
+	case ASPIRE_EC_EVENT_FG_INF_CHG:
+		/* Notify (\_SB.I2C3.BAT1, 0x81) // Information Change */
+		fallthrough;
+	case ASPIRE_EC_EVENT_FG_STA_CHG:
+		/* Notify (\_SB.I2C3.BAT1, 0x80) // Status Change */
+		power_supply_changed(ec->bat_psy);
+		power_supply_changed(ec->adp_psy);
+		break;
+
+	case ASPIRE_EC_EVENT_HPD_DIS:
+		if (ec->bridge_configured)
+			drm_bridge_hpd_notify(&ec->bridge, connector_status_disconnected);
+		break;
+
+	case ASPIRE_EC_EVENT_HPD_CON:
+		if (ec->bridge_configured)
+			drm_bridge_hpd_notify(&ec->bridge, connector_status_connected);
+		break;
+
+	case ASPIRE_EC_EVENT_BKL_BLANKED:
+	case ASPIRE_EC_EVENT_BKL_UNBLANKED:
+		/* Display backlight blanked on FN+F6. No action needed. */
+		break;
+
+	case ASPIRE_EC_EVENT_KBD_BKL_ON:
+	case ASPIRE_EC_EVENT_KBD_BKL_OFF:
+		/*
+		 * There is a keyboard backlight connector on Aspire 1 that is
+		 * controlled by FN+F8. There is no kb backlight on the device though.
+		 * Seems like this is used on other devices like Acer Spin 7.
+		 * No action needed.
+		 */
+		break;
+
+	default:
+		dev_warn(&ec->client->dev, "Unknown event id=0x%x\n", id);
+	}
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * Power supply.
+ */
+
+struct aspire_ec_bat_psy_static_data {
+	u8 unk1;
+	u8 flags;
+	__le16 unk2;
+	__le16 voltage_design;
+	__le16 capacity_full;
+	__le16 unk3;
+	__le16 serial;
+	u8 model_id;
+	u8 vendor_id;
+} __packed;
+
+static const char * const aspire_ec_bat_psy_battery_model[] = {
+	"AP18C4K",
+	"AP18C8K",
+	"AP19B8K",
+	"AP16M4J",
+	"AP16M5J",
+};
+
+static const char * const aspire_ec_bat_psy_battery_vendor[] = {
+	"SANYO",
+	"SONY",
+	"PANASONIC",
+	"SAMSUNG",
+	"SIMPLO",
+	"MOTOROLA",
+	"CELXPERT",
+	"LGC",
+	"GETAC",
+	"MURATA",
+};
+
+struct aspire_ec_bat_psy_dynamic_data {
+	u8 unk1;
+	u8 flags;
+	u8 unk2;
+	__le16 capacity_now;
+	__le16 voltage_now;
+	__le16 current_now;
+	__le16 unk3;
+	__le16 unk4;
+} __packed;
+
+static int aspire_ec_bat_psy_get_property(struct power_supply *psy,
+				      enum power_supply_property psp,
+				      union power_supply_propval *val)
+{
+	struct aspire_ec *ec = power_supply_get_drvdata(psy);
+	struct aspire_ec_bat_psy_static_data sdat;
+	struct aspire_ec_bat_psy_dynamic_data ddat;
+	int str_index = 0;
+
+	i2c_smbus_read_i2c_block_data(ec->client, ASPIRE_EC_FG_STATIC, sizeof(sdat), (u8 *)&sdat);
+	i2c_smbus_read_i2c_block_data(ec->client, ASPIRE_EC_FG_DYNAMIC, sizeof(ddat), (u8 *)&ddat);
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_STATUS:
+		val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
+		if (ddat.flags & ASPIRE_EC_FG_FLAG_CHARGING)
+			val->intval = POWER_SUPPLY_STATUS_CHARGING;
+		else if (ddat.flags & ASPIRE_EC_FG_FLAG_DISCHARGING)
+			val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+		else if (ddat.flags & ASPIRE_EC_FG_FLAG_FULL)
+			val->intval = POWER_SUPPLY_STATUS_FULL;
+		break;
+
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+		val->intval = get_unaligned_le16(&ddat.voltage_now) * MILLI_TO_MICRO;
+		break;
+
+	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
+		val->intval = le16_to_cpu(sdat.voltage_design) * MILLI_TO_MICRO;
+		break;
+
+	case POWER_SUPPLY_PROP_CHARGE_NOW:
+		val->intval = get_unaligned_le16(&ddat.capacity_now) * MILLI_TO_MICRO;
+		break;
+
+	case POWER_SUPPLY_PROP_CHARGE_FULL:
+		val->intval = le16_to_cpu(sdat.capacity_full) * MILLI_TO_MICRO;
+		break;
+
+	case POWER_SUPPLY_PROP_CAPACITY:
+		val->intval = get_unaligned_le16(&ddat.capacity_now) * 100;
+		val->intval /= le16_to_cpu(sdat.capacity_full);
+		break;
+
+	case POWER_SUPPLY_PROP_CURRENT_NOW:
+		val->intval = (s16)get_unaligned_le16(&ddat.current_now) * MILLI_TO_MICRO;
+		break;
+
+	case POWER_SUPPLY_PROP_PRESENT:
+		val->intval = !!(ddat.flags & ASPIRE_EC_FG_FLAG_PRESENT);
+		break;
+
+	case POWER_SUPPLY_PROP_SCOPE:
+		val->intval = POWER_SUPPLY_SCOPE_SYSTEM;
+		break;
+
+	case POWER_SUPPLY_PROP_MODEL_NAME:
+		str_index = sdat.model_id - 1;
+
+		if (str_index >= 0 && str_index < ARRAY_SIZE(aspire_ec_bat_psy_battery_model))
+			val->strval = aspire_ec_bat_psy_battery_model[str_index];
+		else
+			val->strval = "Unknown";
+		break;
+
+	case POWER_SUPPLY_PROP_MANUFACTURER:
+		str_index = sdat.vendor_id - 3; /* ACPI uses 3 as an offset here. */
+
+		if (str_index >= 0 && str_index < ARRAY_SIZE(aspire_ec_bat_psy_battery_vendor))
+			val->strval = aspire_ec_bat_psy_battery_vendor[str_index];
+		else
+			val->strval = "Unknown";
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static enum power_supply_property aspire_ec_bat_psy_props[] = {
+	POWER_SUPPLY_PROP_STATUS,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
+	POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
+	POWER_SUPPLY_PROP_CHARGE_NOW,
+	POWER_SUPPLY_PROP_CHARGE_FULL,
+	POWER_SUPPLY_PROP_CAPACITY,
+	POWER_SUPPLY_PROP_CURRENT_NOW,
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_SCOPE,
+	POWER_SUPPLY_PROP_MODEL_NAME,
+	POWER_SUPPLY_PROP_MANUFACTURER,
+};
+
+static const struct power_supply_desc aspire_ec_bat_psy_desc = {
+	.name		= "aspire-ec-bat",
+	.type		= POWER_SUPPLY_TYPE_BATTERY,
+	.get_property	= aspire_ec_bat_psy_get_property,
+	.properties	= aspire_ec_bat_psy_props,
+	.num_properties	= ARRAY_SIZE(aspire_ec_bat_psy_props),
+};
+
+static int aspire_ec_adp_psy_get_property(struct power_supply *psy,
+				      enum power_supply_property psp,
+				      union power_supply_propval *val)
+{
+	struct aspire_ec *ec = power_supply_get_drvdata(psy);
+	u8 tmp;
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_ONLINE:
+		aspire_ec_ram_read(ec->client, ASPIRE_EC_RAM_ADP, &tmp, sizeof(tmp));
+		val->intval = !!(tmp & ASPIRE_EC_AC_STATUS);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static enum power_supply_property aspire_ec_adp_psy_props[] = {
+	POWER_SUPPLY_PROP_ONLINE,
+};
+
+static const struct power_supply_desc aspire_ec_adp_psy_desc = {
+	.name		= "aspire-ec-adp",
+	.type		= POWER_SUPPLY_TYPE_MAINS,
+	.get_property	= aspire_ec_adp_psy_get_property,
+	.properties	= aspire_ec_adp_psy_props,
+	.num_properties	= ARRAY_SIZE(aspire_ec_adp_psy_props),
+};
+
+/*
+ * USB-C DP Alt mode HPD.
+ */
+
+static int aspire_ec_bridge_attach(struct drm_bridge *bridge, enum drm_bridge_attach_flags flags)
+{
+	return flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR ? 0 : -EINVAL;
+}
+
+static void aspire_ec_bridge_update_hpd_work(struct work_struct *work)
+{
+	struct aspire_ec *ec = container_of(work, struct aspire_ec, work);
+	u8 tmp;
+
+	aspire_ec_ram_read(ec->client, ASPIRE_EC_RAM_HPD_STATUS, &tmp, sizeof(tmp));
+	if (tmp == ASPIRE_EC_HPD_CONNECTED)
+		drm_bridge_hpd_notify(&ec->bridge, connector_status_connected);
+	else
+		drm_bridge_hpd_notify(&ec->bridge, connector_status_disconnected);
+}
+
+static void aspire_ec_bridge_hpd_enable(struct drm_bridge *bridge)
+{
+	struct aspire_ec *ec = container_of(bridge, struct aspire_ec, bridge);
+
+	schedule_work(&ec->work);
+}
+
+static const struct drm_bridge_funcs aspire_ec_bridge_funcs = {
+	.hpd_enable = aspire_ec_bridge_hpd_enable,
+	.attach = aspire_ec_bridge_attach,
+};
+
+/*
+ * Sysfs attributes.
+ */
+
+static ssize_t fn_lock_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct aspire_ec *ec = i2c_get_clientdata(to_i2c_client(dev));
+	u8 tmp;
+
+	aspire_ec_ram_read(ec->client, ASPIRE_EC_RAM_KBD_MODE, &tmp, sizeof(tmp));
+
+	return sysfs_emit(buf, "%u\n", !(tmp & ASPIRE_EC_RAM_KBD_MEDIA_ON_TOP));
+}
+
+static ssize_t fn_lock_store(struct device *dev, struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	struct aspire_ec *ec = i2c_get_clientdata(to_i2c_client(dev));
+	u8 tmp;
+
+	bool state;
+	int ret;
+
+	ret = kstrtobool(buf, &state);
+	if (ret)
+		return ret;
+
+	aspire_ec_ram_read(ec->client, ASPIRE_EC_RAM_KBD_MODE, &tmp, sizeof(tmp));
+
+	if (state)
+		tmp &= ~ASPIRE_EC_RAM_KBD_MEDIA_ON_TOP;
+	else
+		tmp |= ASPIRE_EC_RAM_KBD_MEDIA_ON_TOP;
+
+	aspire_ec_ram_write(ec->client, ASPIRE_EC_RAM_KBD_MODE, tmp);
+
+	return count;
+}
+
+static DEVICE_ATTR_RW(fn_lock);
+
+static struct attribute *aspire_ec_attrs[] = {
+	&dev_attr_fn_lock.attr,
+	NULL
+};
+ATTRIBUTE_GROUPS(aspire_ec);
+
+static int aspire_ec_probe(struct i2c_client *client)
+{
+	struct power_supply_config psy_cfg = {0};
+	struct device *dev = &client->dev;
+	struct fwnode_handle *fwnode;
+	struct aspire_ec *ec;
+	int ret;
+	u8 tmp;
+
+	ec = devm_kzalloc(dev, sizeof(*ec), GFP_KERNEL);
+	if (!ec)
+		return -ENOMEM;
+
+	ec->client = client;
+	i2c_set_clientdata(client, ec);
+
+	/* Battery status reports */
+	psy_cfg.drv_data = ec;
+	ec->bat_psy = devm_power_supply_register(dev, &aspire_ec_bat_psy_desc, &psy_cfg);
+	if (IS_ERR(ec->bat_psy))
+		return dev_err_probe(dev, PTR_ERR(ec->bat_psy),
+				     "Failed to register battery power supply\n");
+
+	ec->adp_psy = devm_power_supply_register(dev, &aspire_ec_adp_psy_desc, &psy_cfg);
+	if (IS_ERR(ec->adp_psy))
+		return dev_err_probe(dev, PTR_ERR(ec->adp_psy),
+				     "Failed to register AC power supply\n");
+
+	/* Lid switch */
+	ec->idev = devm_input_allocate_device(dev);
+	if (!ec->idev)
+		return -ENOMEM;
+
+	ec->idev->name = "aspire-ec";
+	ec->idev->phys = "aspire-ec/input0";
+	input_set_capability(ec->idev, EV_SW, SW_LID);
+
+	ret = input_register_device(ec->idev);
+	if (ret)
+		return dev_err_probe(dev, ret, "Input device register failed\n");
+
+	/* Enable the keyboard fn keys */
+	tmp = ASPIRE_EC_RAM_KBD_FN_EN | ASPIRE_EC_RAM_KBD_ALWAYS_SET;
+	tmp |= ASPIRE_EC_RAM_KBD_MEDIA_ON_TOP;
+	aspire_ec_ram_write(client, ASPIRE_EC_RAM_KBD_MODE, tmp);
+
+	aspire_ec_ram_read(client, ASPIRE_EC_RAM_KBD_MODE_2, &tmp, sizeof(tmp));
+	tmp |= ASPIRE_EC_RAM_KBD_MEDIA_NOTIFY;
+	aspire_ec_ram_write(client, ASPIRE_EC_RAM_KBD_MODE_2, tmp);
+
+	/* External Type-C display attach reports */
+	fwnode = device_get_named_child_node(dev, "connector");
+	if (fwnode) {
+		INIT_WORK(&ec->work, aspire_ec_bridge_update_hpd_work);
+		ec->bridge.funcs = &aspire_ec_bridge_funcs;
+		ec->bridge.of_node = to_of_node(fwnode);
+		ec->bridge.ops = DRM_BRIDGE_OP_HPD;
+		ec->bridge.type = DRM_MODE_CONNECTOR_USB;
+
+		ret = devm_drm_bridge_add(dev, &ec->bridge);
+		if (ret) {
+			fwnode_handle_put(fwnode);
+			return dev_err_probe(dev, ret, "Failed to register drm bridge\n");
+		}
+
+		ec->bridge_configured = true;
+	}
+
+	ret = devm_request_threaded_irq(dev, client->irq, NULL,
+					aspire_ec_irq_handler, IRQF_ONESHOT,
+					dev_name(dev), ec);
+	if (ret)
+		return dev_err_probe(dev, ret, "Failed to request irq\n");
+
+	return 0;
+}
+
+static int aspire_ec_resume(struct device *dev)
+{
+	struct aspire_ec *ec = i2c_get_clientdata(to_i2c_client(dev));
+	u8 tmp;
+
+	aspire_ec_ram_read(ec->client, ASPIRE_EC_RAM_LID_STATUS, &tmp, sizeof(tmp));
+	input_report_switch(ec->idev, SW_LID, !!(tmp & ASPIRE_EC_LID_OPEN));
+	input_sync(ec->idev);
+
+	return 0;
+}
+
+static const struct i2c_device_id aspire_ec_id[] = {
+	{ "aspire1-ec", },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, aspire_ec_id);
+
+static const struct of_device_id aspire_ec_of_match[] = {
+	{ .compatible = "acer,aspire1-ec", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, aspire_ec_of_match);
+
+static DEFINE_SIMPLE_DEV_PM_OPS(aspire_ec_pm_ops, NULL, aspire_ec_resume);
+
+static struct i2c_driver aspire_ec_driver = {
+	.driver = {
+		.name = "aspire-ec",
+		.of_match_table = aspire_ec_of_match,
+		.pm = pm_sleep_ptr(&aspire_ec_pm_ops),
+		.dev_groups = aspire_ec_groups,
+	},
+	.probe = aspire_ec_probe,
+	.id_table = aspire_ec_id,
+};
+module_i2c_driver(aspire_ec_driver);
+
+MODULE_DESCRIPTION("Acer Aspire 1 embedded controller");
+MODULE_AUTHOR("Nikita Travkin <nikita@trvn.ru>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/platform/surface/aggregator/core.c b/drivers/platform/surface/aggregator/core.c
index ba550eaa06fcf5..797d0645bd77fa 100644
--- a/drivers/platform/surface/aggregator/core.c
+++ b/drivers/platform/surface/aggregator/core.c
@@ -618,15 +618,17 @@ static const struct acpi_gpio_mapping ssam_acpi_gpios[] = {
 
 static int ssam_serial_hub_probe(struct serdev_device *serdev)
 {
-	struct acpi_device *ssh = ACPI_COMPANION(&serdev->dev);
+	struct device *dev = &serdev->dev;
+	struct acpi_device *ssh = ACPI_COMPANION(dev);
 	struct ssam_controller *ctrl;
 	acpi_status astatus;
 	int status;
 
-	if (gpiod_count(&serdev->dev, NULL) < 0)
-		return -ENODEV;
+	status = gpiod_count(dev, NULL);
+	if (status < 0)
+		return dev_err_probe(dev, status, "no GPIO found\n");
 
-	status = devm_acpi_dev_add_driver_gpios(&serdev->dev, ssam_acpi_gpios);
+	status = devm_acpi_dev_add_driver_gpios(dev, ssam_acpi_gpios);
 	if (status)
 		return status;
 
@@ -637,8 +639,10 @@ static int ssam_serial_hub_probe(struct serdev_device *serdev)
 
 	/* Initialize controller. */
 	status = ssam_controller_init(ctrl, serdev);
-	if (status)
+	if (status) {
+		dev_err_probe(dev, status, "failed to initialize ssam controller\n");
 		goto err_ctrl_init;
+	}
 
 	ssam_controller_lock(ctrl);
 
@@ -646,12 +650,14 @@ static int ssam_serial_hub_probe(struct serdev_device *serdev)
 	serdev_device_set_drvdata(serdev, ctrl);
 	serdev_device_set_client_ops(serdev, &ssam_serdev_ops);
 	status = serdev_device_open(serdev);
-	if (status)
+	if (status) {
+		dev_err_probe(dev, status, "failed to open serdev device\n");
 		goto err_devopen;
+	}
 
 	astatus = ssam_serdev_setup_via_acpi(ssh->handle, serdev);
 	if (ACPI_FAILURE(astatus)) {
-		status = -ENXIO;
+		status = dev_err_probe(dev, -ENXIO, "failed to setup serdev\n");
 		goto err_devinit;
 	}
 
@@ -667,25 +673,33 @@ static int ssam_serial_hub_probe(struct serdev_device *serdev)
 	 * states.
 	 */
 	status = ssam_log_firmware_version(ctrl);
-	if (status)
+	if (status) {
+		dev_err_probe(dev, status, "failed to get firmware version\n");
 		goto err_initrq;
+	}
 
 	status = ssam_ctrl_notif_d0_entry(ctrl);
-	if (status)
+	if (status) {
+		dev_err_probe(dev, status, "D0-entry notification failed\n");
 		goto err_initrq;
+	}
 
 	status = ssam_ctrl_notif_display_on(ctrl);
-	if (status)
+	if (status) {
+		dev_err_probe(dev, status, "display-on notification failed\n");
 		goto err_initrq;
+	}
 
-	status = sysfs_create_group(&serdev->dev.kobj, &ssam_sam_group);
+	status = sysfs_create_group(&dev->kobj, &ssam_sam_group);
 	if (status)
 		goto err_initrq;
 
 	/* Set up IRQ. */
 	status = ssam_irq_setup(ctrl);
-	if (status)
+	if (status) {
+		dev_err_probe(dev, status, "failed to setup IRQ\n");
 		goto err_irq;
+	}
 
 	/* Finally, set main controller reference. */
 	status = ssam_try_set_controller(ctrl);
@@ -702,7 +716,7 @@ static int ssam_serial_hub_probe(struct serdev_device *serdev)
 	 *       resumed. In short, this causes some spurious unwanted wake-ups.
 	 *       For now let's thus default power/wakeup to false.
 	 */
-	device_set_wakeup_capable(&serdev->dev, true);
+	device_set_wakeup_capable(dev, true);
 	acpi_dev_clear_dependencies(ssh);
 
 	return 0;
@@ -710,7 +724,7 @@ static int ssam_serial_hub_probe(struct serdev_device *serdev)
 err_mainref:
 	ssam_irq_free(ctrl);
 err_irq:
-	sysfs_remove_group(&serdev->dev.kobj, &ssam_sam_group);
+	sysfs_remove_group(&dev->kobj, &ssam_sam_group);
 err_initrq:
 	ssam_controller_lock(ctrl);
 	ssam_controller_shutdown(ctrl);
diff --git a/drivers/platform/surface/surface_aggregator_registry.c b/drivers/platform/surface/surface_aggregator_registry.c
index 035d6b4105cd63..1c4d74db08c954 100644
--- a/drivers/platform/surface/surface_aggregator_registry.c
+++ b/drivers/platform/surface/surface_aggregator_registry.c
@@ -68,12 +68,32 @@ static const struct software_node ssam_node_bat_sb3base = {
 	.parent = &ssam_node_hub_base,
 };
 
-/* Platform profile / performance-mode device. */
-static const struct software_node ssam_node_tmp_pprof = {
+/* Platform profile / performance-mode device without a fan. */
+static const struct software_node ssam_node_tmp_perf_profile = {
 	.name = "ssam:01:03:01:00:01",
 	.parent = &ssam_node_root,
 };
 
+/* Platform profile / performance-mode device with a fan, such that
+ * the fan controller profile can also be switched.
+ */
+static const struct property_entry ssam_node_tmp_perf_profile_has_fan[] = {
+	PROPERTY_ENTRY_BOOL("has_fan"),
+	{ }
+};
+
+static const struct software_node ssam_node_tmp_perf_profile_with_fan = {
+	.name = "ssam:01:03:01:00:01",
+	.parent = &ssam_node_root,
+	.properties = ssam_node_tmp_perf_profile_has_fan,
+};
+
+/* Thermal sensors. */
+static const struct software_node ssam_node_tmp_sensors = {
+	.name = "ssam:01:03:01:00:02",
+	.parent = &ssam_node_root,
+};
+
 /* Fan speed function. */
 static const struct software_node ssam_node_fan_speed = {
 	.name = "ssam:01:05:01:01:01",
@@ -208,7 +228,7 @@ static const struct software_node ssam_node_pos_tablet_switch = {
  */
 static const struct software_node *ssam_node_group_gen5[] = {
 	&ssam_node_root,
-	&ssam_node_tmp_pprof,
+	&ssam_node_tmp_perf_profile,
 	NULL,
 };
 
@@ -219,7 +239,7 @@ static const struct software_node *ssam_node_group_sb3[] = {
 	&ssam_node_bat_ac,
 	&ssam_node_bat_main,
 	&ssam_node_bat_sb3base,
-	&ssam_node_tmp_pprof,
+	&ssam_node_tmp_perf_profile,
 	&ssam_node_bas_dtx,
 	&ssam_node_hid_base_keyboard,
 	&ssam_node_hid_base_touchpad,
@@ -233,7 +253,7 @@ static const struct software_node *ssam_node_group_sl3[] = {
 	&ssam_node_root,
 	&ssam_node_bat_ac,
 	&ssam_node_bat_main,
-	&ssam_node_tmp_pprof,
+	&ssam_node_tmp_perf_profile,
 	&ssam_node_hid_main_keyboard,
 	&ssam_node_hid_main_touchpad,
 	&ssam_node_hid_main_iid5,
@@ -245,7 +265,7 @@ static const struct software_node *ssam_node_group_sl5[] = {
 	&ssam_node_root,
 	&ssam_node_bat_ac,
 	&ssam_node_bat_main,
-	&ssam_node_tmp_pprof,
+	&ssam_node_tmp_perf_profile,
 	&ssam_node_hid_main_keyboard,
 	&ssam_node_hid_main_touchpad,
 	&ssam_node_hid_main_iid5,
@@ -258,7 +278,7 @@ static const struct software_node *ssam_node_group_sls[] = {
 	&ssam_node_root,
 	&ssam_node_bat_ac,
 	&ssam_node_bat_main,
-	&ssam_node_tmp_pprof,
+	&ssam_node_tmp_perf_profile,
 	&ssam_node_pos_tablet_switch,
 	&ssam_node_hid_sam_keyboard,
 	&ssam_node_hid_sam_penstash,
@@ -274,7 +294,7 @@ static const struct software_node *ssam_node_group_slg1[] = {
 	&ssam_node_root,
 	&ssam_node_bat_ac,
 	&ssam_node_bat_main,
-	&ssam_node_tmp_pprof,
+	&ssam_node_tmp_perf_profile,
 	NULL,
 };
 
@@ -283,7 +303,7 @@ static const struct software_node *ssam_node_group_sp7[] = {
 	&ssam_node_root,
 	&ssam_node_bat_ac,
 	&ssam_node_bat_main,
-	&ssam_node_tmp_pprof,
+	&ssam_node_tmp_perf_profile,
 	NULL,
 };
 
@@ -293,7 +313,7 @@ static const struct software_node *ssam_node_group_sp8[] = {
 	&ssam_node_hub_kip,
 	&ssam_node_bat_ac,
 	&ssam_node_bat_main,
-	&ssam_node_tmp_pprof,
+	&ssam_node_tmp_perf_profile,
 	&ssam_node_kip_tablet_switch,
 	&ssam_node_hid_kip_keyboard,
 	&ssam_node_hid_kip_penstash,
@@ -310,7 +330,8 @@ static const struct software_node *ssam_node_group_sp9[] = {
 	&ssam_node_hub_kip,
 	&ssam_node_bat_ac,
 	&ssam_node_bat_main,
-	&ssam_node_tmp_pprof,
+	&ssam_node_tmp_perf_profile_with_fan,
+	&ssam_node_tmp_sensors,
 	&ssam_node_fan_speed,
 	&ssam_node_pos_tablet_switch,
 	&ssam_node_hid_kip_keyboard,
diff --git a/drivers/platform/surface/surface_platform_profile.c b/drivers/platform/surface/surface_platform_profile.c
index a5a3941b3f43af..3de864bc66108d 100644
--- a/drivers/platform/surface/surface_platform_profile.c
+++ b/drivers/platform/surface/surface_platform_profile.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0+
 /*
  * Surface Platform Profile / Performance Mode driver for Surface System
- * Aggregator Module (thermal subsystem).
+ * Aggregator Module (thermal and fan subsystem).
  *
  * Copyright (C) 2021-2022 Maximilian Luz <luzmaximilian@gmail.com>
  */
@@ -14,6 +14,7 @@
 
 #include <linux/surface_aggregator/device.h>
 
+// Enum for the platform performance profile sent to the TMP module.
 enum ssam_tmp_profile {
 	SSAM_TMP_PROFILE_NORMAL             = 1,
 	SSAM_TMP_PROFILE_BATTERY_SAVER      = 2,
@@ -21,15 +22,26 @@ enum ssam_tmp_profile {
 	SSAM_TMP_PROFILE_BEST_PERFORMANCE   = 4,
 };
 
+// Enum for the fan profile sent to the FAN module. This fan profile is
+// only sent to the EC if the 'has_fan' property is set. The integers are
+// not a typo, they differ from the performance profile indices.
+enum ssam_fan_profile {
+	SSAM_FAN_PROFILE_NORMAL             = 2,
+	SSAM_FAN_PROFILE_BATTERY_SAVER      = 1,
+	SSAM_FAN_PROFILE_BETTER_PERFORMANCE = 3,
+	SSAM_FAN_PROFILE_BEST_PERFORMANCE   = 4,
+};
+
 struct ssam_tmp_profile_info {
 	__le32 profile;
 	__le16 unknown1;
 	__le16 unknown2;
 } __packed;
 
-struct ssam_tmp_profile_device {
+struct ssam_platform_profile_device {
 	struct ssam_device *sdev;
 	struct platform_profile_handler handler;
+	bool has_fan;
 };
 
 SSAM_DEFINE_SYNC_REQUEST_CL_R(__ssam_tmp_profile_get, struct ssam_tmp_profile_info, {
@@ -42,6 +54,13 @@ SSAM_DEFINE_SYNC_REQUEST_CL_W(__ssam_tmp_profile_set, __le32, {
 	.command_id      = 0x03,
 });
 
+SSAM_DEFINE_SYNC_REQUEST_W(__ssam_fan_profile_set, u8, {
+	.target_category = SSAM_SSH_TC_FAN,
+	.target_id = SSAM_SSH_TID_SAM,
+	.command_id = 0x0e,
+	.instance_id = 0x01,
+});
+
 static int ssam_tmp_profile_get(struct ssam_device *sdev, enum ssam_tmp_profile *p)
 {
 	struct ssam_tmp_profile_info info;
@@ -57,12 +76,19 @@ static int ssam_tmp_profile_get(struct ssam_device *sdev, enum ssam_tmp_profile
 
 static int ssam_tmp_profile_set(struct ssam_device *sdev, enum ssam_tmp_profile p)
 {
-	__le32 profile_le = cpu_to_le32(p);
+	const __le32 profile_le = cpu_to_le32(p);
 
 	return ssam_retry(__ssam_tmp_profile_set, sdev, &profile_le);
 }
 
-static int convert_ssam_to_profile(struct ssam_device *sdev, enum ssam_tmp_profile p)
+static int ssam_fan_profile_set(struct ssam_device *sdev, enum ssam_fan_profile p)
+{
+	const u8 profile = p;
+
+	return ssam_retry(__ssam_fan_profile_set, sdev->ctrl, &profile);
+}
+
+static int convert_ssam_tmp_to_profile(struct ssam_device *sdev, enum ssam_tmp_profile p)
 {
 	switch (p) {
 	case SSAM_TMP_PROFILE_NORMAL:
@@ -83,7 +109,8 @@ static int convert_ssam_to_profile(struct ssam_device *sdev, enum ssam_tmp_profi
 	}
 }
 
-static int convert_profile_to_ssam(struct ssam_device *sdev, enum platform_profile_option p)
+
+static int convert_profile_to_ssam_tmp(struct ssam_device *sdev, enum platform_profile_option p)
 {
 	switch (p) {
 	case PLATFORM_PROFILE_LOW_POWER:
@@ -105,20 +132,42 @@ static int convert_profile_to_ssam(struct ssam_device *sdev, enum platform_profi
 	}
 }
 
+static int convert_profile_to_ssam_fan(struct ssam_device *sdev, enum platform_profile_option p)
+{
+	switch (p) {
+	case PLATFORM_PROFILE_LOW_POWER:
+		return SSAM_FAN_PROFILE_BATTERY_SAVER;
+
+	case PLATFORM_PROFILE_BALANCED:
+		return SSAM_FAN_PROFILE_NORMAL;
+
+	case PLATFORM_PROFILE_BALANCED_PERFORMANCE:
+		return SSAM_FAN_PROFILE_BETTER_PERFORMANCE;
+
+	case PLATFORM_PROFILE_PERFORMANCE:
+		return SSAM_FAN_PROFILE_BEST_PERFORMANCE;
+
+	default:
+		/* This should have already been caught by platform_profile_store(). */
+		WARN(true, "unsupported platform profile");
+		return -EOPNOTSUPP;
+	}
+}
+
 static int ssam_platform_profile_get(struct platform_profile_handler *pprof,
 				     enum platform_profile_option *profile)
 {
-	struct ssam_tmp_profile_device *tpd;
+	struct ssam_platform_profile_device *tpd;
 	enum ssam_tmp_profile tp;
 	int status;
 
-	tpd = container_of(pprof, struct ssam_tmp_profile_device, handler);
+	tpd = container_of(pprof, struct ssam_platform_profile_device, handler);
 
 	status = ssam_tmp_profile_get(tpd->sdev, &tp);
 	if (status)
 		return status;
 
-	status = convert_ssam_to_profile(tpd->sdev, tp);
+	status = convert_ssam_tmp_to_profile(tpd->sdev, tp);
 	if (status < 0)
 		return status;
 
@@ -129,21 +178,32 @@ static int ssam_platform_profile_get(struct platform_profile_handler *pprof,
 static int ssam_platform_profile_set(struct platform_profile_handler *pprof,
 				     enum platform_profile_option profile)
 {
-	struct ssam_tmp_profile_device *tpd;
+	struct ssam_platform_profile_device *tpd;
 	int tp;
 
-	tpd = container_of(pprof, struct ssam_tmp_profile_device, handler);
+	tpd = container_of(pprof, struct ssam_platform_profile_device, handler);
+
+	tp = convert_profile_to_ssam_tmp(tpd->sdev, profile);
+	if (tp < 0)
+		return tp;
 
-	tp = convert_profile_to_ssam(tpd->sdev, profile);
+	tp = ssam_tmp_profile_set(tpd->sdev, tp);
 	if (tp < 0)
 		return tp;
 
-	return ssam_tmp_profile_set(tpd->sdev, tp);
+	if (tpd->has_fan) {
+		tp = convert_profile_to_ssam_fan(tpd->sdev, profile);
+		if (tp < 0)
+			return tp;
+		tp = ssam_fan_profile_set(tpd->sdev, tp);
+	}
+
+	return tp;
 }
 
 static int surface_platform_profile_probe(struct ssam_device *sdev)
 {
-	struct ssam_tmp_profile_device *tpd;
+	struct ssam_platform_profile_device *tpd;
 
 	tpd = devm_kzalloc(&sdev->dev, sizeof(*tpd), GFP_KERNEL);
 	if (!tpd)
@@ -154,6 +214,8 @@ static int surface_platform_profile_probe(struct ssam_device *sdev)
 	tpd->handler.profile_get = ssam_platform_profile_get;
 	tpd->handler.profile_set = ssam_platform_profile_set;
 
+	tpd->has_fan = device_property_read_bool(&sdev->dev, "has_fan");
+
 	set_bit(PLATFORM_PROFILE_LOW_POWER, tpd->handler.choices);
 	set_bit(PLATFORM_PROFILE_BALANCED, tpd->handler.choices);
 	set_bit(PLATFORM_PROFILE_BALANCED_PERFORMANCE, tpd->handler.choices);
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 7e9251fc33416e..0ec952b5d03e77 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -133,6 +133,17 @@ config YOGABOOK
 	  To compile this driver as a module, choose M here: the module will
 	  be called lenovo-yogabook.
 
+config YT2_1380
+	tristate "Lenovo Yoga Tablet 2 1380 fast charge driver"
+	depends on SERIAL_DEV_BUS
+	depends on ACPI
+	help
+	  Say Y here to enable support for the custom fast charging protocol
+	  found on the Lenovo Yoga Tablet 2 1380F / 1380L models.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called lenovo-yogabook.
+
 config ACERHDF
 	tristate "Acer Aspire One temperature and fan driver"
 	depends on ACPI && THERMAL
@@ -642,6 +653,30 @@ config THINKPAD_LMI
 
 source "drivers/platform/x86/intel/Kconfig"
 
+config ACPI_QUICKSTART
+	tristate "ACPI Quickstart button driver"
+	depends on ACPI
+	depends on INPUT
+	select INPUT_SPARSEKMAP
+	help
+	  This driver adds support for ACPI quickstart button (PNP0C32) devices.
+	  The button emits a manufacturer-specific key value when pressed, so
+	  userspace has to map this value to a standard key code.
+
+	  To compile this driver as a module, choose M here: the module will be
+	  called quickstart.
+
+config MEEGOPAD_ANX7428
+	tristate "MeeGoPad ANX7428 Type-C Switch"
+	depends on ACPI && GPIOLIB && I2C
+	help
+	  Some MeeGoPad top-set boxes have an ANX7428 Type-C Switch for
+	  USB3.1 Gen 1 and DisplayPort over Type-C alternate mode support.
+
+	  This driver takes care of powering on the ANX7428 on supported
+	  MeeGoPad top-set boxes. After this the ANX7428 takes care of Type-C
+	  connector orientation and PD alternate mode switching autonomously.
+
 config MSI_EC
 	tristate "MSI EC Extras"
 	depends on ACPI
@@ -685,6 +720,17 @@ config MSI_WMI
 	 To compile this driver as a module, choose M here: the module will
 	 be called msi-wmi.
 
+config MSI_WMI_PLATFORM
+	tristate "MSI WMI Platform features"
+	depends on ACPI_WMI
+	depends on HWMON
+	help
+	  Say Y here if you want to have support for WMI-based platform features
+	  like fan sensor access on MSI machines.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called msi-wmi-platform.
+
 config XO15_EBOOK
 	tristate "OLPC XO-1.5 ebook switch"
 	depends on OLPC || COMPILE_TEST
@@ -996,6 +1042,18 @@ config INSPUR_PLATFORM_PROFILE
 	To compile this driver as a module, choose M here: the module
 	will be called inspur-platform-profile.
 
+config LENOVO_WMI_CAMERA
+	tristate "Lenovo WMI Camera Button driver"
+	depends on ACPI_WMI
+	depends on INPUT
+	help
+	  This driver provides support for Lenovo camera button. The Camera
+	  button is a GPIO device. This driver receives ACPI notifications when
+	  the camera button is switched on/off.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called lenovo-wmi-camera.
+
 source "drivers/platform/x86/x86-android-tablets/Kconfig"
 
 config FW_ATTR_CLASS
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 1de432e8861eac..e1b14294706747 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -66,14 +66,23 @@ obj-$(CONFIG_SENSORS_HDAPS)	+= hdaps.o
 obj-$(CONFIG_THINKPAD_ACPI)	+= thinkpad_acpi.o
 obj-$(CONFIG_THINKPAD_LMI)	+= think-lmi.o
 obj-$(CONFIG_YOGABOOK)		+= lenovo-yogabook.o
+obj-$(CONFIG_YT2_1380)		+= lenovo-yoga-tab2-pro-1380-fastcharger.o
+obj-$(CONFIG_LENOVO_WMI_CAMERA)	+= lenovo-wmi-camera.o
 
 # Intel
 obj-y				+= intel/
 
+# Microsoft
+obj-$(CONFIG_ACPI_QUICKSTART)  += quickstart.o
+
+# MeeGoPad
+obj-$(CONFIG_MEEGOPAD_ANX7428)	+= meegopad_anx7428.o
+
 # MSI
 obj-$(CONFIG_MSI_EC)		+= msi-ec.o
 obj-$(CONFIG_MSI_LAPTOP)	+= msi-laptop.o
 obj-$(CONFIG_MSI_WMI)		+= msi-wmi.o
+obj-$(CONFIG_MSI_WMI_PLATFORM)	+= msi-wmi-platform.o
 
 # OLPC
 obj-$(CONFIG_XO15_EBOOK)	+= xo15-ebook.o
diff --git a/drivers/platform/x86/amd/hsmp.c b/drivers/platform/x86/amd/hsmp.c
index 1927be901108e3..d84ea66eecc6b6 100644
--- a/drivers/platform/x86/amd/hsmp.c
+++ b/drivers/platform/x86/amd/hsmp.c
@@ -693,7 +693,7 @@ static int hsmp_create_non_acpi_sysfs_if(struct device *dev)
 		hsmp_create_attr_list(attr_grp, dev, i);
 	}
 
-	return devm_device_add_groups(dev, hsmp_attr_grps);
+	return device_add_groups(dev, hsmp_attr_grps);
 }
 
 static int hsmp_create_acpi_sysfs_if(struct device *dev)
diff --git a/drivers/platform/x86/amd/pmc/Kconfig b/drivers/platform/x86/amd/pmc/Kconfig
index 883c0a95ac0cfd..94f9563d8be788 100644
--- a/drivers/platform/x86/amd/pmc/Kconfig
+++ b/drivers/platform/x86/amd/pmc/Kconfig
@@ -18,3 +18,18 @@ config AMD_PMC
 
 	  If you choose to compile this driver as a module the module will be
 	  called amd-pmc.
+
+config AMD_MP2_STB
+	bool "AMD SoC MP2 STB function"
+	depends on AMD_PMC
+	default AMD_PMC
+	help
+	  AMD MP2 STB function provides a data buffer used to log debug
+	  information about the system execution during S2Idle suspend/resume.
+	  A data buffer known as the STB (Smart Trace Buffer) is a circular
+	  buffer which is a low-level log for the SoC which is used to debug
+	  any hangs/stalls during S2Idle suspend/resume.
+
+	  Creates debugfs to get STB, a userspace daemon can access STB log of
+	  last S2Idle suspend/resume which can help to debug if hangs/stalls
+	  during S2Idle suspend/resume.
diff --git a/drivers/platform/x86/amd/pmc/Makefile b/drivers/platform/x86/amd/pmc/Makefile
index 4aaa29d351c90d..f1d9ab19d24c2d 100644
--- a/drivers/platform/x86/amd/pmc/Makefile
+++ b/drivers/platform/x86/amd/pmc/Makefile
@@ -6,3 +6,4 @@
 
 amd-pmc-objs := pmc.o pmc-quirks.o
 obj-$(CONFIG_AMD_PMC) += amd-pmc.o
+amd-pmc-$(CONFIG_AMD_MP2_STB) += mp2_stb.o
diff --git a/drivers/platform/x86/amd/pmc/mp2_stb.c b/drivers/platform/x86/amd/pmc/mp2_stb.c
new file mode 100644
index 00000000000000..9775ddc1b27afb
--- /dev/null
+++ b/drivers/platform/x86/amd/pmc/mp2_stb.c
@@ -0,0 +1,280 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * AMD MP2 STB layer
+ *
+ * Copyright (c) 2024, Advanced Micro Devices, Inc.
+ * All Rights Reserved.
+ *
+ * Author: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
+ */
+
+#include <linux/debugfs.h>
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/io-64-nonatomic-lo-hi.h>
+#include <linux/iopoll.h>
+#include <linux/pci.h>
+#include <linux/sizes.h>
+#include <linux/time.h>
+
+#include "pmc.h"
+
+#define VALID_MSG 0xA
+#define VALID_RESPONSE 2
+
+#define AMD_C2P_MSG0 0x10500
+#define AMD_C2P_MSG1 0x10504
+#define AMD_P2C_MSG0 0x10680
+#define AMD_P2C_MSG1 0x10684
+
+#define MP2_RESP_SLEEP_US 500
+#define MP2_RESP_TIMEOUT_US (1600 * USEC_PER_MSEC)
+
+#define MP2_STB_DATA_LEN_2KB 1
+#define MP2_STB_DATA_LEN_16KB 4
+
+#define MP2_MMIO_BAR 2
+
+struct mp2_cmd_base {
+	union {
+		u32 ul;
+		struct {
+			u32 cmd_id : 4;
+			u32 intr_disable : 1;
+			u32 is_dma_used : 1;
+			u32 rsvd : 26;
+		} field;
+	};
+};
+
+struct mp2_cmd_response {
+	union {
+		u32 resp;
+		struct {
+			u32 cmd_id : 4;
+			u32 status : 4;
+			u32 response : 4;
+			u32 rsvd2 : 20;
+		} field;
+	};
+};
+
+struct mp2_stb_data_valid {
+	union {
+		u32 data_valid;
+		struct {
+			u32 valid : 16;
+			u32 length : 16;
+		} val;
+	};
+};
+
+static int amd_mp2_wait_response(struct amd_mp2_dev *mp2, u8 cmd_id, u32 command_sts)
+{
+	struct mp2_cmd_response cmd_resp;
+
+	if (!readl_poll_timeout(mp2->mmio + AMD_P2C_MSG0, cmd_resp.resp,
+				(cmd_resp.field.response == 0x0 &&
+				 cmd_resp.field.status == command_sts &&
+				 cmd_resp.field.cmd_id == cmd_id), MP2_RESP_SLEEP_US,
+				 MP2_RESP_TIMEOUT_US))
+		return cmd_resp.field.status;
+
+	return -ETIMEDOUT;
+}
+
+static void amd_mp2_stb_send_cmd(struct amd_mp2_dev *mp2, u8 cmd_id, bool is_dma_used)
+{
+	struct mp2_cmd_base cmd_base;
+
+	cmd_base.ul = 0;
+	cmd_base.field.cmd_id = cmd_id;
+	cmd_base.field.intr_disable = 1;
+	cmd_base.field.is_dma_used = is_dma_used;
+
+	writeq(mp2->dma_addr, mp2->mmio + AMD_C2P_MSG1);
+	writel(cmd_base.ul, mp2->mmio + AMD_C2P_MSG0);
+}
+
+static int amd_mp2_stb_region(struct amd_mp2_dev *mp2)
+{
+	struct device *dev = &mp2->pdev->dev;
+	unsigned int len = mp2->stb_len;
+
+	if (!mp2->stbdata) {
+		mp2->vslbase = dmam_alloc_coherent(dev, len, &mp2->dma_addr, GFP_KERNEL);
+		if (!mp2->vslbase)
+			return -ENOMEM;
+
+		mp2->stbdata = devm_kzalloc(dev, len, GFP_KERNEL);
+		if (!mp2->stbdata)
+			return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static int amd_mp2_process_cmd(struct amd_mp2_dev *mp2, struct file *filp)
+{
+	struct device *dev = &mp2->pdev->dev;
+	struct mp2_stb_data_valid stb_dv;
+	int status;
+
+	stb_dv.data_valid = readl(mp2->mmio + AMD_P2C_MSG1);
+
+	if (stb_dv.val.valid != VALID_MSG) {
+		dev_dbg(dev, "Invalid STB data\n");
+		return -EBADMSG;
+	}
+
+	if (stb_dv.val.length != MP2_STB_DATA_LEN_2KB &&
+	    stb_dv.val.length != MP2_STB_DATA_LEN_16KB) {
+		dev_dbg(dev, "Unsupported length\n");
+		return -EMSGSIZE;
+	}
+
+	mp2->stb_len = BIT(stb_dv.val.length) * SZ_1K;
+
+	status = amd_mp2_stb_region(mp2);
+	if (status) {
+		dev_err(dev, "Failed to init STB region, status %d\n", status);
+		return status;
+	}
+
+	amd_mp2_stb_send_cmd(mp2, VALID_MSG, true);
+	status = amd_mp2_wait_response(mp2, VALID_MSG, VALID_RESPONSE);
+	if (status == VALID_RESPONSE) {
+		memcpy_fromio(mp2->stbdata, mp2->vslbase, mp2->stb_len);
+		filp->private_data = mp2->stbdata;
+		mp2->is_stb_data = true;
+	} else {
+		dev_err(dev, "Failed to start STB dump, status %d\n", status);
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static int amd_mp2_stb_debugfs_open(struct inode *inode, struct file *filp)
+{
+	struct amd_pmc_dev *dev = filp->f_inode->i_private;
+	struct amd_mp2_dev *mp2 = dev->mp2;
+
+	if (mp2) {
+		if (!mp2->is_stb_data)
+			return amd_mp2_process_cmd(mp2, filp);
+
+		filp->private_data = mp2->stbdata;
+
+		return 0;
+	}
+
+	return -ENODEV;
+}
+
+static ssize_t amd_mp2_stb_debugfs_read(struct file *filp, char __user *buf, size_t size,
+					loff_t *pos)
+{
+	struct amd_pmc_dev *dev = filp->f_inode->i_private;
+	struct amd_mp2_dev *mp2 = dev->mp2;
+
+	if (!mp2)
+		return -ENODEV;
+
+	if (!filp->private_data)
+		return -EINVAL;
+
+	return simple_read_from_buffer(buf, size, pos, filp->private_data, mp2->stb_len);
+}
+
+static const struct file_operations amd_mp2_stb_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.open = amd_mp2_stb_debugfs_open,
+	.read = amd_mp2_stb_debugfs_read,
+};
+
+static void amd_mp2_dbgfs_register(struct amd_pmc_dev *dev)
+{
+	if (!dev->dbgfs_dir)
+		return;
+
+	debugfs_create_file("stb_read_previous_boot", 0644, dev->dbgfs_dir, dev,
+			    &amd_mp2_stb_debugfs_fops);
+}
+
+void amd_mp2_stb_deinit(struct amd_pmc_dev *dev)
+{
+	struct amd_mp2_dev *mp2 = dev->mp2;
+	struct pci_dev *pdev;
+
+	if (mp2 && mp2->pdev) {
+		pdev = mp2->pdev;
+
+		if (mp2->mmio)
+			pci_clear_master(pdev);
+
+		pci_dev_put(pdev);
+
+		if (mp2->devres_gid)
+			devres_release_group(&pdev->dev, mp2->devres_gid);
+
+		dev->mp2 = NULL;
+	}
+}
+
+void amd_mp2_stb_init(struct amd_pmc_dev *dev)
+{
+	struct amd_mp2_dev *mp2 = NULL;
+	struct pci_dev *pdev;
+	int rc;
+
+	mp2 = devm_kzalloc(dev->dev, sizeof(*mp2), GFP_KERNEL);
+	if (!mp2)
+		return;
+
+	pdev = pci_get_device(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_MP2_STB, NULL);
+	if (!pdev)
+		return;
+
+	dev->mp2 = mp2;
+	mp2->pdev = pdev;
+
+	mp2->devres_gid = devres_open_group(&pdev->dev, NULL, GFP_KERNEL);
+	if (!mp2->devres_gid) {
+		dev_err(&pdev->dev, "devres_open_group failed\n");
+		goto mp2_error;
+	}
+
+	rc = pcim_enable_device(pdev);
+	if (rc) {
+		dev_err(&pdev->dev, "pcim_enable_device failed\n");
+		goto mp2_error;
+	}
+
+	rc = pcim_iomap_regions(pdev, BIT(MP2_MMIO_BAR), "mp2 stb");
+	if (rc) {
+		dev_err(&pdev->dev, "pcim_iomap_regions failed\n");
+		goto mp2_error;
+	}
+
+	mp2->mmio = pcim_iomap_table(pdev)[MP2_MMIO_BAR];
+	if (!mp2->mmio) {
+		dev_err(&pdev->dev, "pcim_iomap_table failed\n");
+		goto mp2_error;
+	}
+
+	pci_set_master(pdev);
+
+	rc = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (rc) {
+		dev_err(&pdev->dev, "failed to set DMA mask\n");
+		goto mp2_error;
+	}
+
+	amd_mp2_dbgfs_register(dev);
+
+	return;
+
+mp2_error:
+	amd_mp2_stb_deinit(dev);
+}
diff --git a/drivers/platform/x86/amd/pmc/pmc.c b/drivers/platform/x86/amd/pmc/pmc.c
index 108e12fd580f7f..a3d881f6e5d904 100644
--- a/drivers/platform/x86/amd/pmc/pmc.c
+++ b/drivers/platform/x86/amd/pmc/pmc.c
@@ -1106,6 +1106,8 @@ static int amd_pmc_probe(struct platform_device *pdev)
 	}
 
 	amd_pmc_dbgfs_register(dev);
+	if (IS_ENABLED(CONFIG_AMD_MP2_STB))
+		amd_mp2_stb_init(dev);
 	pm_report_max_hw_sleep(U64_MAX);
 	return 0;
 
@@ -1122,6 +1124,8 @@ static void amd_pmc_remove(struct platform_device *pdev)
 		acpi_unregister_lps0_dev(&amd_pmc_s2idle_dev_ops);
 	amd_pmc_dbgfs_unregister(dev);
 	pci_dev_put(dev->rdev);
+	if (IS_ENABLED(CONFIG_AMD_MP2_STB))
+		amd_mp2_stb_deinit(dev);
 	mutex_destroy(&dev->lock);
 }
 
@@ -1132,6 +1136,7 @@ static const struct acpi_device_id amd_pmc_acpi_ids[] = {
 	{"AMDI0008", 0},
 	{"AMDI0009", 0},
 	{"AMDI000A", 0},
+	{"AMDI000B", 0},
 	{"AMD0004", 0},
 	{"AMD0005", 0},
 	{ }
diff --git a/drivers/platform/x86/amd/pmc/pmc.h b/drivers/platform/x86/amd/pmc/pmc.h
index 827eef65e13347..9e32d3128c3a2b 100644
--- a/drivers/platform/x86/amd/pmc/pmc.h
+++ b/drivers/platform/x86/amd/pmc/pmc.h
@@ -14,6 +14,17 @@
 #include <linux/types.h>
 #include <linux/mutex.h>
 
+struct amd_mp2_dev {
+	void __iomem *mmio;
+	void __iomem *vslbase;
+	void *stbdata;
+	void *devres_gid;
+	struct pci_dev *pdev;
+	dma_addr_t dma_addr;
+	int stb_len;
+	bool is_stb_data;
+};
+
 struct amd_pmc_dev {
 	void __iomem *regbase;
 	void __iomem *smu_virt_addr;
@@ -38,10 +49,13 @@ struct amd_pmc_dev {
 	struct dentry *dbgfs_dir;
 	struct quirk_entry *quirks;
 	bool disable_8042_wakeup;
+	struct amd_mp2_dev *mp2;
 };
 
 void amd_pmc_process_restore_quirks(struct amd_pmc_dev *dev);
 void amd_pmc_quirks_init(struct amd_pmc_dev *dev);
+void amd_mp2_stb_init(struct amd_pmc_dev *dev);
+void amd_mp2_stb_deinit(struct amd_pmc_dev *dev);
 
 /* List of supported CPU ids */
 #define AMD_CPU_ID_RV			0x15D0
@@ -53,5 +67,6 @@ void amd_pmc_quirks_init(struct amd_pmc_dev *dev);
 #define AMD_CPU_ID_PS			0x14E8
 #define AMD_CPU_ID_SP			0x14A4
 #define PCI_DEVICE_ID_AMD_1AH_M20H_ROOT 0x1507
+#define PCI_DEVICE_ID_AMD_MP2_STB	0x172c
 
 #endif /* PMC_H */
diff --git a/drivers/platform/x86/amd/pmf/core.c b/drivers/platform/x86/amd/pmf/core.c
index 64e6e34a2a9acd..2d6e2558863c58 100644
--- a/drivers/platform/x86/amd/pmf/core.c
+++ b/drivers/platform/x86/amd/pmf/core.c
@@ -381,6 +381,7 @@ static const struct acpi_device_id amd_pmf_acpi_ids[] = {
 	{"AMDI0100", 0x100},
 	{"AMDI0102", 0},
 	{"AMDI0103", 0},
+	{"AMDI0105", 0},
 	{ }
 };
 MODULE_DEVICE_TABLE(acpi, amd_pmf_acpi_ids);
diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index 78c42767295a11..ccb33d034e2ade 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -852,8 +852,8 @@ static ssize_t infos_show(struct device *dev, struct device_attribute *attr,
 	 * so we don't set eof to 1
 	 */
 
-	len += sprintf(page, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n");
-	len += sprintf(page + len, "Model reference    : %s\n", asus->name);
+	len += sysfs_emit_at(page, len, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n");
+	len += sysfs_emit_at(page, len, "Model reference    : %s\n", asus->name);
 	/*
 	 * The SFUN method probably allows the original driver to get the list
 	 * of features supported by a given model. For now, 0x0100 or 0x0800
@@ -862,7 +862,7 @@ static ssize_t infos_show(struct device *dev, struct device_attribute *attr,
 	 */
 	rv = acpi_evaluate_integer(asus->handle, "SFUN", NULL, &temp);
 	if (ACPI_SUCCESS(rv))
-		len += sprintf(page + len, "SFUN value         : %#x\n",
+		len += sysfs_emit_at(page, len, "SFUN value         : %#x\n",
 			       (uint) temp);
 	/*
 	 * The HWRS method return informations about the hardware.
@@ -874,7 +874,7 @@ static ssize_t infos_show(struct device *dev, struct device_attribute *attr,
 	 */
 	rv = acpi_evaluate_integer(asus->handle, "HWRS", NULL, &temp);
 	if (ACPI_SUCCESS(rv))
-		len += sprintf(page + len, "HWRS value         : %#x\n",
+		len += sysfs_emit_at(page, len, "HWRS value         : %#x\n",
 			       (uint) temp);
 	/*
 	 * Another value for userspace: the ASYM method returns 0x02 for
@@ -885,25 +885,25 @@ static ssize_t infos_show(struct device *dev, struct device_attribute *attr,
 	 */
 	rv = acpi_evaluate_integer(asus->handle, "ASYM", NULL, &temp);
 	if (ACPI_SUCCESS(rv))
-		len += sprintf(page + len, "ASYM value         : %#x\n",
+		len += sysfs_emit_at(page, len, "ASYM value         : %#x\n",
 			       (uint) temp);
 	if (asus->dsdt_info) {
 		snprintf(buf, 16, "%d", asus->dsdt_info->length);
-		len += sprintf(page + len, "DSDT length        : %s\n", buf);
+		len += sysfs_emit_at(page, len, "DSDT length        : %s\n", buf);
 		snprintf(buf, 16, "%d", asus->dsdt_info->checksum);
-		len += sprintf(page + len, "DSDT checksum      : %s\n", buf);
+		len += sysfs_emit_at(page, len, "DSDT checksum      : %s\n", buf);
 		snprintf(buf, 16, "%d", asus->dsdt_info->revision);
-		len += sprintf(page + len, "DSDT revision      : %s\n", buf);
+		len += sysfs_emit_at(page, len, "DSDT revision      : %s\n", buf);
 		snprintf(buf, 7, "%s", asus->dsdt_info->oem_id);
-		len += sprintf(page + len, "OEM id             : %s\n", buf);
+		len += sysfs_emit_at(page, len, "OEM id             : %s\n", buf);
 		snprintf(buf, 9, "%s", asus->dsdt_info->oem_table_id);
-		len += sprintf(page + len, "OEM table id       : %s\n", buf);
+		len += sysfs_emit_at(page, len, "OEM table id       : %s\n", buf);
 		snprintf(buf, 16, "%x", asus->dsdt_info->oem_revision);
-		len += sprintf(page + len, "OEM revision       : 0x%s\n", buf);
+		len += sysfs_emit_at(page, len, "OEM revision       : 0x%s\n", buf);
 		snprintf(buf, 5, "%s", asus->dsdt_info->asl_compiler_id);
-		len += sprintf(page + len, "ASL comp vendor id : %s\n", buf);
+		len += sysfs_emit_at(page, len, "ASL comp vendor id : %s\n", buf);
 		snprintf(buf, 16, "%x", asus->dsdt_info->asl_compiler_revision);
-		len += sprintf(page + len, "ASL comp revision  : 0x%s\n", buf);
+		len += sysfs_emit_at(page, len, "ASL comp revision  : 0x%s\n", buf);
 	}
 
 	return len;
@@ -933,7 +933,7 @@ static ssize_t ledd_show(struct device *dev, struct device_attribute *attr,
 {
 	struct asus_laptop *asus = dev_get_drvdata(dev);
 
-	return sprintf(buf, "0x%08x\n", asus->ledd_status);
+	return sysfs_emit(buf, "0x%08x\n", asus->ledd_status);
 }
 
 static ssize_t ledd_store(struct device *dev, struct device_attribute *attr,
@@ -993,7 +993,7 @@ static ssize_t wlan_show(struct device *dev, struct device_attribute *attr,
 {
 	struct asus_laptop *asus = dev_get_drvdata(dev);
 
-	return sprintf(buf, "%d\n", asus_wireless_status(asus, WL_RSTS));
+	return sysfs_emit(buf, "%d\n", asus_wireless_status(asus, WL_RSTS));
 }
 
 static ssize_t wlan_store(struct device *dev, struct device_attribute *attr,
@@ -1022,7 +1022,7 @@ static ssize_t bluetooth_show(struct device *dev, struct device_attribute *attr,
 {
 	struct asus_laptop *asus = dev_get_drvdata(dev);
 
-	return sprintf(buf, "%d\n", asus_wireless_status(asus, BT_RSTS));
+	return sysfs_emit(buf, "%d\n", asus_wireless_status(asus, BT_RSTS));
 }
 
 static ssize_t bluetooth_store(struct device *dev,
@@ -1052,7 +1052,7 @@ static ssize_t wimax_show(struct device *dev, struct device_attribute *attr,
 {
 	struct asus_laptop *asus = dev_get_drvdata(dev);
 
-	return sprintf(buf, "%d\n", asus_wireless_status(asus, WM_RSTS));
+	return sysfs_emit(buf, "%d\n", asus_wireless_status(asus, WM_RSTS));
 }
 
 static ssize_t wimax_store(struct device *dev, struct device_attribute *attr,
@@ -1081,7 +1081,7 @@ static ssize_t wwan_show(struct device *dev, struct device_attribute *attr,
 {
 	struct asus_laptop *asus = dev_get_drvdata(dev);
 
-	return sprintf(buf, "%d\n", asus_wireless_status(asus, WW_RSTS));
+	return sysfs_emit(buf, "%d\n", asus_wireless_status(asus, WW_RSTS));
 }
 
 static ssize_t wwan_store(struct device *dev, struct device_attribute *attr,
@@ -1151,7 +1151,7 @@ static ssize_t ls_switch_show(struct device *dev, struct device_attribute *attr,
 {
 	struct asus_laptop *asus = dev_get_drvdata(dev);
 
-	return sprintf(buf, "%d\n", asus->light_switch);
+	return sysfs_emit(buf, "%d\n", asus->light_switch);
 }
 
 static ssize_t ls_switch_store(struct device *dev,
@@ -1182,7 +1182,7 @@ static ssize_t ls_level_show(struct device *dev, struct device_attribute *attr,
 {
 	struct asus_laptop *asus = dev_get_drvdata(dev);
 
-	return sprintf(buf, "%d\n", asus->light_level);
+	return sysfs_emit(buf, "%d\n", asus->light_level);
 }
 
 static ssize_t ls_level_store(struct device *dev, struct device_attribute *attr,
@@ -1228,7 +1228,7 @@ static ssize_t ls_value_show(struct device *dev, struct device_attribute *attr,
 	if (!err)
 		err = pega_int_read(asus, PEGA_READ_ALS_L, &lo);
 	if (!err)
-		return sprintf(buf, "%d\n", 10 * hi + lo);
+		return sysfs_emit(buf, "%d\n", 10 * hi + lo);
 	return err;
 }
 static DEVICE_ATTR_RO(ls_value);
@@ -1264,7 +1264,7 @@ static ssize_t gps_show(struct device *dev, struct device_attribute *attr,
 {
 	struct asus_laptop *asus = dev_get_drvdata(dev);
 
-	return sprintf(buf, "%d\n", asus_gps_status(asus));
+	return sysfs_emit(buf, "%d\n", asus_gps_status(asus));
 }
 
 static ssize_t gps_store(struct device *dev, struct device_attribute *attr,
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 3f07bbf809ef01..727dbdec45f458 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -126,10 +126,21 @@ module_param(fnlock_default, bool, 0444);
 #define ASUS_SCREENPAD_BRIGHT_MAX 255
 #define ASUS_SCREENPAD_BRIGHT_DEFAULT 60
 
+#define ASUS_MINI_LED_MODE_MASK		0x03
+/* Standard modes for devices with only on/off */
+#define ASUS_MINI_LED_OFF		0x00
+#define ASUS_MINI_LED_ON		0x01
+/* New mode on some devices, define here to clarify remapping later */
+#define ASUS_MINI_LED_STRONG_MODE	0x02
+/* New modes for devices with 3 mini-led mode types */
+#define ASUS_MINI_LED_2024_WEAK		0x00
+#define ASUS_MINI_LED_2024_STRONG	0x01
+#define ASUS_MINI_LED_2024_OFF		0x02
+
 /* Controls the power state of the USB0 hub on ROG Ally which input is on */
 #define ASUS_USB0_PWR_EC0_CSEE "\\_SB.PCI0.SBRG.EC0.CSEE"
 /* 300ms so far seems to produce a reliable result on AC and battery */
-#define ASUS_USB0_PWR_EC0_CSEE_WAIT 300
+#define ASUS_USB0_PWR_EC0_CSEE_WAIT 1500
 
 static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL };
 
@@ -243,6 +254,9 @@ struct asus_wmi {
 	u32 tablet_switch_dev_id;
 	bool tablet_switch_inverted;
 
+	/* The ROG Ally device requires the MCU USB device be disconnected before suspend */
+	bool ally_mcu_usb_switch;
+
 	enum fan_type fan_type;
 	enum fan_type gpu_fan_type;
 	enum fan_type mid_fan_type;
@@ -255,22 +269,20 @@ struct asus_wmi {
 	u8 fan_boost_mode_mask;
 	u8 fan_boost_mode;
 
-	bool charge_mode_available;
 	bool egpu_enable_available;
-	bool egpu_connect_available;
 	bool dgpu_disable_available;
-	bool gpu_mux_mode_available;
+	u32 gpu_mux_dev;
 
 	/* Tunables provided by ASUS for gaming laptops */
-	bool ppt_pl2_sppt_available;
-	bool ppt_pl1_spl_available;
-	bool ppt_apu_sppt_available;
-	bool ppt_plat_sppt_available;
-	bool ppt_fppt_available;
-	bool nv_dyn_boost_available;
-	bool nv_temp_tgt_available;
-
-	bool kbd_rgb_mode_available;
+	u32 ppt_pl2_sppt;
+	u32 ppt_pl1_spl;
+	u32 ppt_apu_sppt;
+	u32 ppt_platform_sppt;
+	u32 ppt_fppt;
+	u32 nv_dynamic_boost;
+	u32 nv_temp_target;
+
+	u32 kbd_rgb_dev;
 	bool kbd_rgb_state_available;
 
 	bool throttle_thermal_policy_available;
@@ -288,7 +300,7 @@ struct asus_wmi {
 	bool battery_rsoc_available;
 
 	bool panel_overdrive_available;
-	bool mini_led_mode_available;
+	u32 mini_led_dev_id;
 
 	struct hotplug_slot hotplug_slot;
 	struct mutex hotplug_lock;
@@ -298,9 +310,6 @@ struct asus_wmi {
 
 	bool fnlock_locked;
 
-	/* The ROG Ally device requires the MCU USB device be disconnected before suspend */
-	bool ally_mcu_usb_switch;
-
 	struct asus_wmi_debug debug;
 
 	struct asus_wmi_driver *driver;
@@ -682,8 +691,8 @@ static ssize_t dgpu_disable_store(struct device *dev,
 	if (disable > 1)
 		return -EINVAL;
 
-	if (asus->gpu_mux_mode_available) {
-		result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPU_MUX);
+	if (asus->gpu_mux_dev) {
+		result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
 		if (result < 0)
 			/* An error here may signal greater failure of GPU handling */
 			return result;
@@ -748,8 +757,8 @@ static ssize_t egpu_enable_store(struct device *dev,
 		return err;
 	}
 
-	if (asus->gpu_mux_mode_available) {
-		result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPU_MUX);
+	if (asus->gpu_mux_dev) {
+		result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
 		if (result < 0) {
 			/* An error here may signal greater failure of GPU handling */
 			pr_warn("Failed to get gpu mux status: %d\n", result);
@@ -802,7 +811,7 @@ static ssize_t gpu_mux_mode_show(struct device *dev,
 	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result;
 
-	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_GPU_MUX);
+	result = asus_wmi_get_devstate_simple(asus, asus->gpu_mux_dev);
 	if (result < 0)
 		return result;
 
@@ -848,7 +857,7 @@ static ssize_t gpu_mux_mode_store(struct device *dev,
 		}
 	}
 
-	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_GPU_MUX, optimus, &result);
+	err = asus_wmi_set_devstate(asus->gpu_mux_dev, optimus, &result);
 	if (err) {
 		dev_err(dev, "Failed to set GPU MUX mode: %d\n", err);
 		return err;
@@ -870,6 +879,7 @@ static ssize_t kbd_rgb_mode_store(struct device *dev,
 				 struct device_attribute *attr,
 				 const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	u32 cmd, mode, r, g, b, speed;
 	int err;
 
@@ -906,7 +916,7 @@ static ssize_t kbd_rgb_mode_store(struct device *dev,
 		speed = 0xeb;
 	}
 
-	err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS, ASUS_WMI_DEVID_TUF_RGB_MODE,
+	err = asus_wmi_evaluate_method3(ASUS_WMI_METHODID_DEVS, asus->kbd_rgb_dev,
 			cmd | (mode << 8) | (r << 16) | (g << 24), b | (speed << 8), NULL);
 	if (err)
 		return err;
@@ -996,11 +1006,10 @@ static ssize_t ppt_pl2_sppt_store(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result, err;
 	u32 value;
 
-	struct asus_wmi *asus = dev_get_drvdata(dev);
-
 	result = kstrtou32(buf, 10, &value);
 	if (result)
 		return result;
@@ -1019,22 +1028,31 @@ static ssize_t ppt_pl2_sppt_store(struct device *dev,
 		return -EIO;
 	}
 
+	asus->ppt_pl2_sppt = value;
 	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_pl2_sppt");
 
 	return count;
 }
-static DEVICE_ATTR_WO(ppt_pl2_sppt);
+
+static ssize_t ppt_pl2_sppt_show(struct device *dev,
+				       struct device_attribute *attr,
+				       char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	return sysfs_emit(buf, "%u\n", asus->ppt_pl2_sppt);
+}
+static DEVICE_ATTR_RW(ppt_pl2_sppt);
 
 /* Tunable: PPT, Intel=PL1, AMD=SPL ******************************************/
 static ssize_t ppt_pl1_spl_store(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result, err;
 	u32 value;
 
-	struct asus_wmi *asus = dev_get_drvdata(dev);
-
 	result = kstrtou32(buf, 10, &value);
 	if (result)
 		return result;
@@ -1053,22 +1071,30 @@ static ssize_t ppt_pl1_spl_store(struct device *dev,
 		return -EIO;
 	}
 
+	asus->ppt_pl1_spl = value;
 	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_pl1_spl");
 
 	return count;
 }
-static DEVICE_ATTR_WO(ppt_pl1_spl);
+static ssize_t ppt_pl1_spl_show(struct device *dev,
+				 struct device_attribute *attr,
+				 char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	return sysfs_emit(buf, "%u\n", asus->ppt_pl1_spl);
+}
+static DEVICE_ATTR_RW(ppt_pl1_spl);
 
 /* Tunable: PPT APU FPPT ******************************************************/
 static ssize_t ppt_fppt_store(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result, err;
 	u32 value;
 
-	struct asus_wmi *asus = dev_get_drvdata(dev);
-
 	result = kstrtou32(buf, 10, &value);
 	if (result)
 		return result;
@@ -1087,22 +1113,31 @@ static ssize_t ppt_fppt_store(struct device *dev,
 		return -EIO;
 	}
 
+	asus->ppt_fppt = value;
 	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_fpu_sppt");
 
 	return count;
 }
-static DEVICE_ATTR_WO(ppt_fppt);
+
+static ssize_t ppt_fppt_show(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	return sysfs_emit(buf, "%u\n", asus->ppt_fppt);
+}
+static DEVICE_ATTR_RW(ppt_fppt);
 
 /* Tunable: PPT APU SPPT *****************************************************/
 static ssize_t ppt_apu_sppt_store(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result, err;
 	u32 value;
 
-	struct asus_wmi *asus = dev_get_drvdata(dev);
-
 	result = kstrtou32(buf, 10, &value);
 	if (result)
 		return result;
@@ -1121,22 +1156,31 @@ static ssize_t ppt_apu_sppt_store(struct device *dev,
 		return -EIO;
 	}
 
+	asus->ppt_apu_sppt = value;
 	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_apu_sppt");
 
 	return count;
 }
-static DEVICE_ATTR_WO(ppt_apu_sppt);
+
+static ssize_t ppt_apu_sppt_show(struct device *dev,
+			     struct device_attribute *attr,
+			     char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	return sysfs_emit(buf, "%u\n", asus->ppt_apu_sppt);
+}
+static DEVICE_ATTR_RW(ppt_apu_sppt);
 
 /* Tunable: PPT platform SPPT ************************************************/
 static ssize_t ppt_platform_sppt_store(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result, err;
 	u32 value;
 
-	struct asus_wmi *asus = dev_get_drvdata(dev);
-
 	result = kstrtou32(buf, 10, &value);
 	if (result)
 		return result;
@@ -1155,22 +1199,31 @@ static ssize_t ppt_platform_sppt_store(struct device *dev,
 		return -EIO;
 	}
 
+	asus->ppt_platform_sppt = value;
 	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "ppt_platform_sppt");
 
 	return count;
 }
-static DEVICE_ATTR_WO(ppt_platform_sppt);
+
+static ssize_t ppt_platform_sppt_show(struct device *dev,
+				 struct device_attribute *attr,
+				 char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	return sysfs_emit(buf, "%u\n", asus->ppt_platform_sppt);
+}
+static DEVICE_ATTR_RW(ppt_platform_sppt);
 
 /* Tunable: NVIDIA dynamic boost *********************************************/
 static ssize_t nv_dynamic_boost_store(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result, err;
 	u32 value;
 
-	struct asus_wmi *asus = dev_get_drvdata(dev);
-
 	result = kstrtou32(buf, 10, &value);
 	if (result)
 		return result;
@@ -1189,22 +1242,31 @@ static ssize_t nv_dynamic_boost_store(struct device *dev,
 		return -EIO;
 	}
 
+	asus->nv_dynamic_boost = value;
 	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_dynamic_boost");
 
 	return count;
 }
-static DEVICE_ATTR_WO(nv_dynamic_boost);
+
+static ssize_t nv_dynamic_boost_show(struct device *dev,
+				      struct device_attribute *attr,
+				      char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	return sysfs_emit(buf, "%u\n", asus->nv_dynamic_boost);
+}
+static DEVICE_ATTR_RW(nv_dynamic_boost);
 
 /* Tunable: NVIDIA temperature target ****************************************/
 static ssize_t nv_temp_target_store(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
 {
+	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result, err;
 	u32 value;
 
-	struct asus_wmi *asus = dev_get_drvdata(dev);
-
 	result = kstrtou32(buf, 10, &value);
 	if (result)
 		return result;
@@ -1223,11 +1285,68 @@ static ssize_t nv_temp_target_store(struct device *dev,
 		return -EIO;
 	}
 
+	asus->nv_temp_target = value;
 	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "nv_temp_target");
 
 	return count;
 }
-static DEVICE_ATTR_WO(nv_temp_target);
+
+static ssize_t nv_temp_target_show(struct device *dev,
+				     struct device_attribute *attr,
+				     char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	return sysfs_emit(buf, "%u\n", asus->nv_temp_target);
+}
+static DEVICE_ATTR_RW(nv_temp_target);
+
+/* Ally MCU Powersave ********************************************************/
+static ssize_t mcu_powersave_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+	int result;
+
+	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MCU_POWERSAVE);
+	if (result < 0)
+		return result;
+
+	return sysfs_emit(buf, "%d\n", result);
+}
+
+static ssize_t mcu_powersave_store(struct device *dev,
+				    struct device_attribute *attr,
+				    const char *buf, size_t count)
+{
+	int result, err;
+	u32 enable;
+
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	result = kstrtou32(buf, 10, &enable);
+	if (result)
+		return result;
+
+	if (enable > 1)
+		return -EINVAL;
+
+	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MCU_POWERSAVE, enable, &result);
+	if (err) {
+		pr_warn("Failed to set MCU powersave: %d\n", err);
+		return err;
+	}
+
+	if (result > 1) {
+		pr_warn("Failed to set MCU powersave (result): 0x%x\n", result);
+		return -EIO;
+	}
+
+	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "mcu_powersave");
+
+	return count;
+}
+static DEVICE_ATTR_RW(mcu_powersave);
 
 /* Battery ********************************************************************/
 
@@ -1549,7 +1668,7 @@ static int asus_wmi_led_init(struct asus_wmi *asus)
 {
 	int rv = 0, num_rgb_groups = 0, led_val;
 
-	if (asus->kbd_rgb_mode_available)
+	if (asus->kbd_rgb_dev)
 		kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_mode_group;
 	if (asus->kbd_rgb_state_available)
 		kbd_rgb_mode_groups[num_rgb_groups++] = &kbd_rgb_state_group;
@@ -2103,20 +2222,88 @@ static ssize_t panel_od_store(struct device *dev,
 }
 static DEVICE_ATTR_RW(panel_od);
 
-/* Mini-LED mode **************************************************************/
-static ssize_t mini_led_mode_show(struct device *dev,
-				   struct device_attribute *attr, char *buf)
+/* Bootup sound ***************************************************************/
+
+static ssize_t boot_sound_show(struct device *dev,
+			     struct device_attribute *attr, char *buf)
 {
 	struct asus_wmi *asus = dev_get_drvdata(dev);
 	int result;
 
-	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MINI_LED_MODE);
+	result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_BOOT_SOUND);
 	if (result < 0)
 		return result;
 
 	return sysfs_emit(buf, "%d\n", result);
 }
 
+static ssize_t boot_sound_store(struct device *dev,
+			      struct device_attribute *attr,
+			      const char *buf, size_t count)
+{
+	int result, err;
+	u32 snd;
+
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	result = kstrtou32(buf, 10, &snd);
+	if (result)
+		return result;
+
+	if (snd > 1)
+		return -EINVAL;
+
+	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_BOOT_SOUND, snd, &result);
+	if (err) {
+		pr_warn("Failed to set boot sound: %d\n", err);
+		return err;
+	}
+
+	if (result > 1) {
+		pr_warn("Failed to set panel boot sound (result): 0x%x\n", result);
+		return -EIO;
+	}
+
+	sysfs_notify(&asus->platform_device->dev.kobj, NULL, "boot_sound");
+
+	return count;
+}
+static DEVICE_ATTR_RW(boot_sound);
+
+/* Mini-LED mode **************************************************************/
+static ssize_t mini_led_mode_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+	u32 value;
+	int err;
+
+	err = asus_wmi_get_devstate(asus, asus->mini_led_dev_id, &value);
+	if (err < 0)
+		return err;
+	value = value & ASUS_MINI_LED_MODE_MASK;
+
+	/*
+	 * Remap the mode values to match previous generation mini-led. The last gen
+	 * WMI 0 == off, while on this version WMI 2 ==off (flipped).
+	 */
+	if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
+		switch (value) {
+		case ASUS_MINI_LED_2024_WEAK:
+			value = ASUS_MINI_LED_ON;
+			break;
+		case ASUS_MINI_LED_2024_STRONG:
+			value = ASUS_MINI_LED_STRONG_MODE;
+			break;
+		case ASUS_MINI_LED_2024_OFF:
+			value = ASUS_MINI_LED_OFF;
+			break;
+		}
+	}
+
+	return sysfs_emit(buf, "%d\n", value);
+}
+
 static ssize_t mini_led_mode_store(struct device *dev,
 				    struct device_attribute *attr,
 				    const char *buf, size_t count)
@@ -2130,11 +2317,32 @@ static ssize_t mini_led_mode_store(struct device *dev,
 	if (result)
 		return result;
 
-	if (mode > 1)
+	if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE &&
+	    mode > ASUS_MINI_LED_ON)
+		return -EINVAL;
+	if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2 &&
+	    mode > ASUS_MINI_LED_STRONG_MODE)
 		return -EINVAL;
 
-	err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MINI_LED_MODE, mode, &result);
+	/*
+	 * Remap the mode values so expected behaviour is the same as the last
+	 * generation of mini-LED with 0 == off, 1 == on.
+	 */
+	if (asus->mini_led_dev_id == ASUS_WMI_DEVID_MINI_LED_MODE2) {
+		switch (mode) {
+		case ASUS_MINI_LED_OFF:
+			mode = ASUS_MINI_LED_2024_OFF;
+			break;
+		case ASUS_MINI_LED_ON:
+			mode = ASUS_MINI_LED_2024_WEAK;
+			break;
+		case ASUS_MINI_LED_STRONG_MODE:
+			mode = ASUS_MINI_LED_2024_STRONG;
+			break;
+		}
+	}
 
+	err = asus_wmi_set_devstate(asus->mini_led_dev_id, mode, &result);
 	if (err) {
 		pr_warn("Failed to set mini-LED: %d\n", err);
 		return err;
@@ -2151,6 +2359,23 @@ static ssize_t mini_led_mode_store(struct device *dev,
 }
 static DEVICE_ATTR_RW(mini_led_mode);
 
+static ssize_t available_mini_led_mode_show(struct device *dev,
+				  struct device_attribute *attr, char *buf)
+{
+	struct asus_wmi *asus = dev_get_drvdata(dev);
+
+	switch (asus->mini_led_dev_id) {
+	case ASUS_WMI_DEVID_MINI_LED_MODE:
+		return sysfs_emit(buf, "0 1\n");
+	case ASUS_WMI_DEVID_MINI_LED_MODE2:
+		return sysfs_emit(buf, "0 1 2\n");
+	}
+
+	return sysfs_emit(buf, "0\n");
+}
+
+static DEVICE_ATTR_RO(available_mini_led_mode);
+
 /* Quirks *********************************************************************/
 
 static void asus_wmi_set_xusb2pr(struct asus_wmi *asus)
@@ -2326,7 +2551,7 @@ static ssize_t pwm1_show(struct device *dev,
 
 	/* If we already set a value then just return it */
 	if (asus->agfn_pwm >= 0)
-		return sprintf(buf, "%d\n", asus->agfn_pwm);
+		return sysfs_emit(buf, "%d\n", asus->agfn_pwm);
 
 	/*
 	 * If we haven't set already set a value through the AGFN interface,
@@ -2512,8 +2737,8 @@ static ssize_t asus_hwmon_temp1(struct device *dev,
 	if (err < 0)
 		return err;
 
-	return sprintf(buf, "%ld\n",
-		       deci_kelvin_to_millicelsius(value & 0xFFFF));
+	return sysfs_emit(buf, "%ld\n",
+			  deci_kelvin_to_millicelsius(value & 0xFFFF));
 }
 
 /* GPU fan on modern ROG laptops */
@@ -4061,7 +4286,7 @@ static ssize_t show_sys_wmi(struct asus_wmi *asus, int devid, char *buf)
 	if (value < 0)
 		return value;
 
-	return sprintf(buf, "%d\n", value);
+	return sysfs_emit(buf, "%d\n", value);
 }
 
 #define ASUS_WMI_CREATE_DEVICE_ATTR(_name, _mode, _cm)			\
@@ -4137,8 +4362,11 @@ static struct attribute *platform_attributes[] = {
 	&dev_attr_ppt_platform_sppt.attr,
 	&dev_attr_nv_dynamic_boost.attr,
 	&dev_attr_nv_temp_target.attr,
+	&dev_attr_mcu_powersave.attr,
+	&dev_attr_boot_sound.attr,
 	&dev_attr_panel_od.attr,
 	&dev_attr_mini_led_mode.attr,
+	&dev_attr_available_mini_led_mode.attr,
 	NULL
 };
 
@@ -4161,37 +4389,43 @@ static umode_t asus_sysfs_is_visible(struct kobject *kobj,
 	else if (attr == &dev_attr_als_enable.attr)
 		devid = ASUS_WMI_DEVID_ALS_ENABLE;
 	else if (attr == &dev_attr_charge_mode.attr)
-		ok = asus->charge_mode_available;
+		devid = ASUS_WMI_DEVID_CHARGE_MODE;
 	else if (attr == &dev_attr_egpu_enable.attr)
 		ok = asus->egpu_enable_available;
 	else if (attr == &dev_attr_egpu_connected.attr)
-		ok = asus->egpu_connect_available;
+		devid = ASUS_WMI_DEVID_EGPU_CONNECTED;
 	else if (attr == &dev_attr_dgpu_disable.attr)
 		ok = asus->dgpu_disable_available;
 	else if (attr == &dev_attr_gpu_mux_mode.attr)
-		ok = asus->gpu_mux_mode_available;
+		ok = asus->gpu_mux_dev != 0;
 	else if (attr == &dev_attr_fan_boost_mode.attr)
 		ok = asus->fan_boost_mode_available;
 	else if (attr == &dev_attr_throttle_thermal_policy.attr)
 		ok = asus->throttle_thermal_policy_available;
 	else if (attr == &dev_attr_ppt_pl2_sppt.attr)
-		ok = asus->ppt_pl2_sppt_available;
+		devid = ASUS_WMI_DEVID_PPT_PL2_SPPT;
 	else if (attr == &dev_attr_ppt_pl1_spl.attr)
-		ok = asus->ppt_pl1_spl_available;
+		devid = ASUS_WMI_DEVID_PPT_PL1_SPL;
 	else if (attr == &dev_attr_ppt_fppt.attr)
-		ok = asus->ppt_fppt_available;
+		devid = ASUS_WMI_DEVID_PPT_FPPT;
 	else if (attr == &dev_attr_ppt_apu_sppt.attr)
-		ok = asus->ppt_apu_sppt_available;
+		devid = ASUS_WMI_DEVID_PPT_APU_SPPT;
 	else if (attr == &dev_attr_ppt_platform_sppt.attr)
-		ok = asus->ppt_plat_sppt_available;
+		devid = ASUS_WMI_DEVID_PPT_PLAT_SPPT;
 	else if (attr == &dev_attr_nv_dynamic_boost.attr)
-		ok = asus->nv_dyn_boost_available;
+		devid = ASUS_WMI_DEVID_NV_DYN_BOOST;
 	else if (attr == &dev_attr_nv_temp_target.attr)
-		ok = asus->nv_temp_tgt_available;
+		devid = ASUS_WMI_DEVID_NV_THERM_TARGET;
+	else if (attr == &dev_attr_mcu_powersave.attr)
+		devid = ASUS_WMI_DEVID_MCU_POWERSAVE;
+	else if (attr == &dev_attr_boot_sound.attr)
+		devid = ASUS_WMI_DEVID_BOOT_SOUND;
 	else if (attr == &dev_attr_panel_od.attr)
-		ok = asus->panel_overdrive_available;
+		devid = ASUS_WMI_DEVID_PANEL_OD;
 	else if (attr == &dev_attr_mini_led_mode.attr)
-		ok = asus->mini_led_mode_available;
+		ok = asus->mini_led_dev_id != 0;
+	else if (attr == &dev_attr_available_mini_led_mode.attr)
+		ok = asus->mini_led_dev_id != 0;
 
 	if (devid != -1)
 		ok = !(asus_wmi_get_devstate_simple(asus, devid) < 0);
@@ -4429,25 +4663,36 @@ static int asus_wmi_add(struct platform_device *pdev)
 	if (err)
 		goto fail_platform;
 
-	asus->charge_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_CHARGE_MODE);
+	/* ensure defaults for tunables */
+	asus->ppt_pl2_sppt = 5;
+	asus->ppt_pl1_spl = 5;
+	asus->ppt_apu_sppt = 5;
+	asus->ppt_platform_sppt = 5;
+	asus->ppt_fppt = 5;
+	asus->nv_dynamic_boost = 5;
+	asus->nv_temp_target = 75;
+
 	asus->egpu_enable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU);
-	asus->egpu_connect_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_EGPU_CONNECTED);
 	asus->dgpu_disable_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_DGPU);
-	asus->gpu_mux_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX);
-	asus->kbd_rgb_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE);
 	asus->kbd_rgb_state_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_STATE);
-	asus->ppt_pl2_sppt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_PL2_SPPT);
-	asus->ppt_pl1_spl_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_PL1_SPL);
-	asus->ppt_fppt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_FPPT);
-	asus->ppt_apu_sppt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_APU_SPPT);
-	asus->ppt_plat_sppt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PPT_PLAT_SPPT);
-	asus->nv_dyn_boost_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_NV_DYN_BOOST);
-	asus->nv_temp_tgt_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_NV_THERM_TARGET);
-	asus->panel_overdrive_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_PANEL_OD);
-	asus->mini_led_mode_available = asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE);
 	asus->ally_mcu_usb_switch = acpi_has_method(NULL, ASUS_USB0_PWR_EC0_CSEE)
 						&& dmi_match(DMI_BOARD_NAME, "RC71L");
 
+	if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE))
+		asus->mini_led_dev_id = ASUS_WMI_DEVID_MINI_LED_MODE;
+	else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_MINI_LED_MODE2))
+		asus->mini_led_dev_id = ASUS_WMI_DEVID_MINI_LED_MODE2;
+
+	if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX))
+		asus->gpu_mux_dev = ASUS_WMI_DEVID_GPU_MUX;
+	else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_GPU_MUX_VIVO))
+		asus->gpu_mux_dev = ASUS_WMI_DEVID_GPU_MUX_VIVO;
+
+	if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE))
+		asus->kbd_rgb_dev = ASUS_WMI_DEVID_TUF_RGB_MODE;
+	else if (asus_wmi_dev_is_present(asus, ASUS_WMI_DEVID_TUF_RGB_MODE2))
+		asus->kbd_rgb_dev = ASUS_WMI_DEVID_TUF_RGB_MODE2;
+
 	err = fan_boost_mode_check_present(asus);
 	if (err)
 		goto fail_fan_boost_mode;
@@ -4629,6 +4874,7 @@ static int asus_hotk_resume_early(struct device *device)
 	struct asus_wmi *asus = dev_get_drvdata(device);
 
 	if (asus->ally_mcu_usb_switch) {
+		/* sleep required to prevent USB0 being yanked then reappearing rapidly */
 		if (ACPI_FAILURE(acpi_execute_simple_method(NULL, ASUS_USB0_PWR_EC0_CSEE, 0xB8)))
 			dev_err(device, "ROG Ally MCU failed to connect USB dev\n");
 		else
@@ -4640,17 +4886,8 @@ static int asus_hotk_resume_early(struct device *device)
 static int asus_hotk_prepare(struct device *device)
 {
 	struct asus_wmi *asus = dev_get_drvdata(device);
-	int result, err;
 
 	if (asus->ally_mcu_usb_switch) {
-		/* When powersave is enabled it causes many issues with resume of USB hub */
-		result = asus_wmi_get_devstate_simple(asus, ASUS_WMI_DEVID_MCU_POWERSAVE);
-		if (result == 1) {
-			dev_warn(device, "MCU powersave enabled, disabling to prevent resume issues");
-			err = asus_wmi_set_devstate(ASUS_WMI_DEVID_MCU_POWERSAVE, 0, &result);
-			if (err || result != 1)
-				dev_err(device, "Failed to set MCU powersave mode: %d\n", err);
-		}
 		/* sleep required to ensure USB0 is disabled before sleep continues */
 		if (ACPI_FAILURE(acpi_execute_simple_method(NULL, ASUS_USB0_PWR_EC0_CSEE, 0xB7)))
 			dev_err(device, "ROG Ally MCU failed to disconnect USB dev\n");
diff --git a/drivers/platform/x86/classmate-laptop.c b/drivers/platform/x86/classmate-laptop.c
index 87462e7c6219f1..cb6fce655e35b3 100644
--- a/drivers/platform/x86/classmate-laptop.c
+++ b/drivers/platform/x86/classmate-laptop.c
@@ -13,8 +13,6 @@
 #include <linux/input.h>
 #include <linux/rfkill.h>
 
-MODULE_LICENSE("GPL");
-
 struct cmpc_accel {
 	int sensitivity;
 	int g_select;
@@ -1139,3 +1137,5 @@ static const struct acpi_device_id cmpc_device_ids[] __maybe_unused = {
 };
 
 MODULE_DEVICE_TABLE(acpi, cmpc_device_ids);
+MODULE_DESCRIPTION("Support for Intel Classmate PC ACPI devices");
+MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/dell/Kconfig b/drivers/platform/x86/dell/Kconfig
index bd9f445974cc68..195a8bf532cc6d 100644
--- a/drivers/platform/x86/dell/Kconfig
+++ b/drivers/platform/x86/dell/Kconfig
@@ -145,6 +145,21 @@ config DELL_SMO8800
 	  To compile this driver as a module, choose M here: the module will
 	  be called dell-smo8800.
 
+config DELL_UART_BACKLIGHT
+	tristate "Dell AIO UART Backlight driver"
+	depends on ACPI
+	depends on BACKLIGHT_CLASS_DEVICE
+	depends on SERIAL_DEV_BUS
+	help
+	  Say Y here if you want to support Dell AIO UART backlight interface.
+	  The Dell AIO machines released after 2017 come with a UART interface
+	  to communicate with the backlight scalar board. This driver creates
+	  a standard backlight interface and talks to the scalar board through
+	  UART to adjust the AIO screen brightness.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called dell_uart_backlight.
+
 config DELL_WMI
 	tristate "Dell WMI notifications"
 	default m
diff --git a/drivers/platform/x86/dell/Makefile b/drivers/platform/x86/dell/Makefile
index 1b894242662230..8176a257d9c359 100644
--- a/drivers/platform/x86/dell/Makefile
+++ b/drivers/platform/x86/dell/Makefile
@@ -14,6 +14,7 @@ dell-smbios-objs			:= dell-smbios-base.o
 dell-smbios-$(CONFIG_DELL_SMBIOS_WMI)	+= dell-smbios-wmi.o
 dell-smbios-$(CONFIG_DELL_SMBIOS_SMM)	+= dell-smbios-smm.o
 obj-$(CONFIG_DELL_SMO8800)		+= dell-smo8800.o
+obj-$(CONFIG_DELL_UART_BACKLIGHT)	+= dell-uart-backlight.o
 obj-$(CONFIG_DELL_WMI)			+= dell-wmi.o
 dell-wmi-objs				:= dell-wmi-base.o
 dell-wmi-$(CONFIG_DELL_WMI_PRIVACY)	+= dell-wmi-privacy.o
diff --git a/drivers/platform/x86/dell/dell-uart-backlight.c b/drivers/platform/x86/dell/dell-uart-backlight.c
new file mode 100644
index 00000000000000..87d2a20b4cb3d8
--- /dev/null
+++ b/drivers/platform/x86/dell/dell-uart-backlight.c
@@ -0,0 +1,398 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Dell AIO Serial Backlight Driver
+ *
+ * Copyright (C) 2024 Hans de Goede <hansg@kernel.org>
+ * Copyright (C) 2017 AceLan Kao <acelan.kao@canonical.com>
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/acpi.h>
+#include <linux/backlight.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/serdev.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/wait.h>
+#include "../serdev_helpers.h"
+
+/* The backlight controller must respond within 1 second */
+#define DELL_BL_TIMEOUT		msecs_to_jiffies(1000)
+#define DELL_BL_MAX_BRIGHTNESS	100
+
+/* Defines for the commands send to the controller */
+
+/* 1st byte Start Of Frame 3 MSB bits: cmd-len + 01010 SOF marker */
+#define DELL_SOF(len)			(((len) << 5) | 0x0a)
+#define GET_CMD_LEN			3
+#define SET_CMD_LEN			4
+
+/* 2nd byte command */
+#define CMD_GET_VERSION			0x06
+#define CMD_SET_BRIGHTNESS		0x0b
+#define CMD_GET_BRIGHTNESS		0x0c
+#define CMD_SET_BL_POWER		0x0e
+
+/* Indexes and other defines for response received from the controller */
+#define RESP_LEN			0
+#define RESP_CMD			1 /* Echo of CMD byte from command */
+#define RESP_DATA			2 /* Start of received data */
+
+#define SET_RESP_LEN			3
+#define GET_RESP_LEN			4
+#define MIN_RESP_LEN			3
+#define MAX_RESP_LEN			80
+
+struct dell_uart_backlight {
+	struct mutex mutex;
+	wait_queue_head_t wait_queue;
+	struct device *dev;
+	struct backlight_device *bl;
+	u8 *resp;
+	u8 resp_idx;
+	u8 resp_len;
+	u8 resp_max_len;
+	u8 pending_cmd;
+	int status;
+	int power;
+};
+
+/* Checksum: SUM(Length and Cmd and Data) xor 0xFF */
+static u8 dell_uart_checksum(u8 *buf, int len)
+{
+	u8 val = 0;
+
+	while (len-- > 0)
+		val += buf[len];
+
+	return val ^ 0xff;
+}
+
+static int dell_uart_bl_command(struct dell_uart_backlight *dell_bl,
+				const u8 *cmd, int cmd_len,
+				u8 *resp, int resp_max_len)
+{
+	int ret;
+
+	ret = mutex_lock_killable(&dell_bl->mutex);
+	if (ret)
+		return ret;
+
+	dell_bl->status = -EBUSY;
+	dell_bl->resp = resp;
+	dell_bl->resp_idx = 0;
+	dell_bl->resp_len = -1; /* Invalid / unset */
+	dell_bl->resp_max_len = resp_max_len;
+	dell_bl->pending_cmd = cmd[1];
+
+	/* The TTY buffer should be big enough to take the entire cmd in one go */
+	ret = serdev_device_write_buf(to_serdev_device(dell_bl->dev), cmd, cmd_len);
+	if (ret != cmd_len) {
+		dev_err(dell_bl->dev, "Error writing command: %d\n", ret);
+		dell_bl->status = (ret < 0) ? ret : -EIO;
+		goto out;
+	}
+
+	ret = wait_event_timeout(dell_bl->wait_queue, dell_bl->status != -EBUSY,
+				 DELL_BL_TIMEOUT);
+	if (ret == 0) {
+		dev_err(dell_bl->dev, "Timed out waiting for response.\n");
+		/* Clear busy status to discard bytes received after this */
+		dell_bl->status = -ETIMEDOUT;
+	}
+
+out:
+	mutex_unlock(&dell_bl->mutex);
+	return dell_bl->status;
+}
+
+static int dell_uart_set_brightness(struct dell_uart_backlight *dell_bl, int brightness)
+{
+	u8 set_brightness[SET_CMD_LEN], resp[SET_RESP_LEN];
+
+	set_brightness[0] = DELL_SOF(SET_CMD_LEN);
+	set_brightness[1] = CMD_SET_BRIGHTNESS;
+	set_brightness[2] = brightness;
+	set_brightness[3] = dell_uart_checksum(set_brightness, 3);
+
+	return dell_uart_bl_command(dell_bl, set_brightness, SET_CMD_LEN, resp, SET_RESP_LEN);
+}
+
+static int dell_uart_get_brightness(struct dell_uart_backlight *dell_bl)
+{
+	struct device *dev = dell_bl->dev;
+	u8 get_brightness[GET_CMD_LEN], resp[GET_RESP_LEN];
+	int ret;
+
+	get_brightness[0] = DELL_SOF(GET_CMD_LEN);
+	get_brightness[1] = CMD_GET_BRIGHTNESS;
+	get_brightness[2] = dell_uart_checksum(get_brightness, 2);
+
+	ret = dell_uart_bl_command(dell_bl, get_brightness, GET_CMD_LEN, resp, GET_RESP_LEN);
+	if (ret)
+		return ret;
+
+	if (resp[RESP_LEN] != GET_RESP_LEN) {
+		dev_err(dev, "Unexpected get brightness response length: %d\n", resp[RESP_LEN]);
+		return -EIO;
+	}
+
+	if (resp[RESP_DATA] > DELL_BL_MAX_BRIGHTNESS) {
+		dev_err(dev, "Unexpected get brightness response: %d\n", resp[RESP_DATA]);
+		return -EIO;
+	}
+
+	return resp[RESP_DATA];
+}
+
+static int dell_uart_set_bl_power(struct dell_uart_backlight *dell_bl, int power)
+{
+	u8 set_power[SET_CMD_LEN], resp[SET_RESP_LEN];
+	int ret;
+
+	set_power[0] = DELL_SOF(SET_CMD_LEN);
+	set_power[1] = CMD_SET_BL_POWER;
+	set_power[2] = (power == FB_BLANK_UNBLANK) ? 1 : 0;
+	set_power[3] = dell_uart_checksum(set_power, 3);
+
+	ret = dell_uart_bl_command(dell_bl, set_power, SET_CMD_LEN, resp, SET_RESP_LEN);
+	if (ret)
+		return ret;
+
+	dell_bl->power = power;
+	return 0;
+}
+
+/*
+ * There is no command to get backlight power status,
+ * so we set the backlight power to "on" while initializing,
+ * and then track and report its status by power variable.
+ */
+static int dell_uart_get_bl_power(struct dell_uart_backlight *dell_bl)
+{
+	return dell_bl->power;
+}
+
+static int dell_uart_update_status(struct backlight_device *bd)
+{
+	struct dell_uart_backlight *dell_bl = bl_get_data(bd);
+	int ret;
+
+	ret = dell_uart_set_brightness(dell_bl, bd->props.brightness);
+	if (ret)
+		return ret;
+
+	if (bd->props.power != dell_uart_get_bl_power(dell_bl))
+		return dell_uart_set_bl_power(dell_bl, bd->props.power);
+
+	return 0;
+}
+
+static int dell_uart_get_brightness_op(struct backlight_device *bd)
+{
+	return dell_uart_get_brightness(bl_get_data(bd));
+}
+
+static const struct backlight_ops dell_uart_backlight_ops = {
+	.update_status = dell_uart_update_status,
+	.get_brightness = dell_uart_get_brightness_op,
+};
+
+static size_t dell_uart_bl_receive(struct serdev_device *serdev, const u8 *data, size_t len)
+{
+	struct dell_uart_backlight *dell_bl = serdev_device_get_drvdata(serdev);
+	size_t i;
+	u8 csum;
+
+	dev_dbg(dell_bl->dev, "Recv: %*ph\n", (int)len, data);
+
+	/* Throw away unexpected bytes / remainder of response after an error */
+	if (dell_bl->status != -EBUSY) {
+		dev_warn(dell_bl->dev, "Bytes received out of band, dropping them.\n");
+		return len;
+	}
+
+	i = 0;
+	while (i < len && dell_bl->resp_idx != dell_bl->resp_len) {
+		dell_bl->resp[dell_bl->resp_idx] = data[i++];
+
+		switch (dell_bl->resp_idx) {
+		case RESP_LEN: /* Length byte */
+			dell_bl->resp_len = dell_bl->resp[RESP_LEN];
+			if (dell_bl->resp_len < MIN_RESP_LEN ||
+			    dell_bl->resp_len > dell_bl->resp_max_len) {
+				dev_err(dell_bl->dev, "Response length %d out if range %d - %d\n",
+					dell_bl->resp_len, MIN_RESP_LEN, dell_bl->resp_max_len);
+				dell_bl->status = -EIO;
+				goto wakeup;
+			}
+			break;
+		case RESP_CMD: /* CMD byte */
+			if (dell_bl->resp[RESP_CMD] != dell_bl->pending_cmd) {
+				dev_err(dell_bl->dev, "Response cmd 0x%02x != pending 0x%02x\n",
+					dell_bl->resp[RESP_CMD], dell_bl->pending_cmd);
+				dell_bl->status = -EIO;
+				goto wakeup;
+			}
+			break;
+		}
+		dell_bl->resp_idx++;
+	}
+
+	if (dell_bl->resp_idx != dell_bl->resp_len)
+		return len; /* Response not complete yet */
+
+	csum = dell_uart_checksum(dell_bl->resp, dell_bl->resp_len - 1);
+	if (dell_bl->resp[dell_bl->resp_len - 1] == csum) {
+		dell_bl->status = 0; /* Success */
+	} else {
+		dev_err(dell_bl->dev, "Checksum mismatch got 0x%02x expected 0x%02x\n",
+			dell_bl->resp[dell_bl->resp_len - 1], csum);
+		dell_bl->status = -EIO;
+	}
+wakeup:
+	wake_up(&dell_bl->wait_queue);
+	return i;
+}
+
+static const struct serdev_device_ops dell_uart_bl_serdev_ops = {
+	.receive_buf = dell_uart_bl_receive,
+	.write_wakeup = serdev_device_write_wakeup,
+};
+
+static int dell_uart_bl_serdev_probe(struct serdev_device *serdev)
+{
+	u8 get_version[GET_CMD_LEN], resp[MAX_RESP_LEN];
+	struct backlight_properties props = {};
+	struct dell_uart_backlight *dell_bl;
+	struct device *dev = &serdev->dev;
+	int ret;
+
+	dell_bl = devm_kzalloc(dev, sizeof(*dell_bl), GFP_KERNEL);
+	if (!dell_bl)
+		return -ENOMEM;
+
+	mutex_init(&dell_bl->mutex);
+	init_waitqueue_head(&dell_bl->wait_queue);
+	dell_bl->dev = dev;
+
+	ret = devm_serdev_device_open(dev, serdev);
+	if (ret)
+		return dev_err_probe(dev, ret, "opening UART device\n");
+
+	/* 9600 bps, no flow control, these are the default but set them to be sure */
+	serdev_device_set_baudrate(serdev, 9600);
+	serdev_device_set_flow_control(serdev, false);
+	serdev_device_set_drvdata(serdev, dell_bl);
+	serdev_device_set_client_ops(serdev, &dell_uart_bl_serdev_ops);
+
+	get_version[0] = DELL_SOF(GET_CMD_LEN);
+	get_version[1] = CMD_GET_VERSION;
+	get_version[2] = dell_uart_checksum(get_version, 2);
+
+	ret = dell_uart_bl_command(dell_bl, get_version, GET_CMD_LEN, resp, MAX_RESP_LEN);
+	if (ret)
+		return dev_err_probe(dev, ret, "getting firmware version\n");
+
+	dev_dbg(dev, "Firmware version: %.*s\n", resp[RESP_LEN] - 3, resp + RESP_DATA);
+
+	/* Initialize bl_power to a known value */
+	ret = dell_uart_set_bl_power(dell_bl, FB_BLANK_UNBLANK);
+	if (ret)
+		return ret;
+
+	ret = dell_uart_get_brightness(dell_bl);
+	if (ret < 0)
+		return ret;
+
+	props.type = BACKLIGHT_PLATFORM;
+	props.brightness = ret;
+	props.max_brightness = DELL_BL_MAX_BRIGHTNESS;
+	props.power = dell_bl->power;
+
+	dell_bl->bl = devm_backlight_device_register(dev, "dell_uart_backlight",
+						     dev, dell_bl,
+						     &dell_uart_backlight_ops,
+						     &props);
+	return PTR_ERR_OR_ZERO(dell_bl->bl);
+}
+
+struct serdev_device_driver dell_uart_bl_serdev_driver = {
+	.probe = dell_uart_bl_serdev_probe,
+	.driver = {
+		.name = KBUILD_MODNAME,
+	},
+};
+
+static int dell_uart_bl_pdev_probe(struct platform_device *pdev)
+{
+	struct serdev_device *serdev;
+	struct device *ctrl_dev;
+	int ret;
+
+	ctrl_dev = get_serdev_controller("DELL0501", NULL, 0, "serial0");
+	if (IS_ERR(ctrl_dev))
+		return PTR_ERR(ctrl_dev);
+
+	serdev = serdev_device_alloc(to_serdev_controller(ctrl_dev));
+	put_device(ctrl_dev);
+	if (!serdev)
+		return -ENOMEM;
+
+	ret = serdev_device_add(serdev);
+	if (ret) {
+		dev_err(&pdev->dev, "error %d adding serdev\n", ret);
+		serdev_device_put(serdev);
+		return ret;
+	}
+
+	ret = serdev_device_driver_register(&dell_uart_bl_serdev_driver);
+	if (ret)
+		goto err_remove_serdev;
+
+	/*
+	 * serdev device <-> driver matching relies on OF or ACPI matches and
+	 * neither is available here, manually bind the driver.
+	 */
+	ret = device_driver_attach(&dell_uart_bl_serdev_driver.driver, &serdev->dev);
+	if (ret)
+		goto err_unregister_serdev_driver;
+
+	/* So that dell_uart_bl_pdev_remove() can remove the serdev */
+	platform_set_drvdata(pdev, serdev);
+	return 0;
+
+err_unregister_serdev_driver:
+	serdev_device_driver_unregister(&dell_uart_bl_serdev_driver);
+err_remove_serdev:
+	serdev_device_remove(serdev);
+	return ret;
+}
+
+static void dell_uart_bl_pdev_remove(struct platform_device *pdev)
+{
+	struct serdev_device *serdev = platform_get_drvdata(pdev);
+
+	serdev_device_driver_unregister(&dell_uart_bl_serdev_driver);
+	serdev_device_remove(serdev);
+}
+
+static struct platform_driver dell_uart_bl_pdev_driver = {
+	.probe = dell_uart_bl_pdev_probe,
+	.remove_new = dell_uart_bl_pdev_remove,
+	.driver = {
+		.name = "dell-uart-backlight",
+	},
+};
+module_platform_driver(dell_uart_bl_pdev_driver);
+
+MODULE_ALIAS("platform:dell-uart-backlight");
+MODULE_DESCRIPTION("Dell AIO Serial Backlight driver");
+MODULE_AUTHOR("Hans de Goede <hansg@kernel.org>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index 94480af4946783..968fc91bd5e405 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -386,11 +386,11 @@ static ssize_t lid_show(struct device *dev, struct device_attribute *attr,
 	struct fujitsu_laptop *priv = dev_get_drvdata(dev);
 
 	if (!(priv->flags_supported & FLAG_LID))
-		return sprintf(buf, "unknown\n");
+		return sysfs_emit(buf, "unknown\n");
 	if (priv->flags_state & FLAG_LID)
-		return sprintf(buf, "open\n");
+		return sysfs_emit(buf, "open\n");
 	else
-		return sprintf(buf, "closed\n");
+		return sysfs_emit(buf, "closed\n");
 }
 
 static ssize_t dock_show(struct device *dev, struct device_attribute *attr,
@@ -399,11 +399,11 @@ static ssize_t dock_show(struct device *dev, struct device_attribute *attr,
 	struct fujitsu_laptop *priv = dev_get_drvdata(dev);
 
 	if (!(priv->flags_supported & FLAG_DOCK))
-		return sprintf(buf, "unknown\n");
+		return sysfs_emit(buf, "unknown\n");
 	if (priv->flags_state & FLAG_DOCK)
-		return sprintf(buf, "docked\n");
+		return sysfs_emit(buf, "docked\n");
 	else
-		return sprintf(buf, "undocked\n");
+		return sysfs_emit(buf, "undocked\n");
 }
 
 static ssize_t radios_show(struct device *dev, struct device_attribute *attr,
@@ -412,11 +412,11 @@ static ssize_t radios_show(struct device *dev, struct device_attribute *attr,
 	struct fujitsu_laptop *priv = dev_get_drvdata(dev);
 
 	if (!(priv->flags_supported & FLAG_RFKILL))
-		return sprintf(buf, "unknown\n");
+		return sysfs_emit(buf, "unknown\n");
 	if (priv->flags_state & FLAG_RFKILL)
-		return sprintf(buf, "on\n");
+		return sysfs_emit(buf, "on\n");
 	else
-		return sprintf(buf, "killed\n");
+		return sysfs_emit(buf, "killed\n");
 }
 
 static DEVICE_ATTR_RO(lid);
diff --git a/drivers/platform/x86/hp/hp-wmi.c b/drivers/platform/x86/hp/hp-wmi.c
index 630519c086171d..5fa55302384269 100644
--- a/drivers/platform/x86/hp/hp-wmi.c
+++ b/drivers/platform/x86/hp/hp-wmi.c
@@ -681,7 +681,7 @@ static ssize_t display_show(struct device *dev, struct device_attribute *attr,
 
 	if (value < 0)
 		return value;
-	return sprintf(buf, "%d\n", value);
+	return sysfs_emit(buf, "%d\n", value);
 }
 
 static ssize_t hddtemp_show(struct device *dev, struct device_attribute *attr,
@@ -691,7 +691,7 @@ static ssize_t hddtemp_show(struct device *dev, struct device_attribute *attr,
 
 	if (value < 0)
 		return value;
-	return sprintf(buf, "%d\n", value);
+	return sysfs_emit(buf, "%d\n", value);
 }
 
 static ssize_t als_show(struct device *dev, struct device_attribute *attr,
@@ -701,7 +701,7 @@ static ssize_t als_show(struct device *dev, struct device_attribute *attr,
 
 	if (value < 0)
 		return value;
-	return sprintf(buf, "%d\n", value);
+	return sysfs_emit(buf, "%d\n", value);
 }
 
 static ssize_t dock_show(struct device *dev, struct device_attribute *attr,
@@ -711,7 +711,7 @@ static ssize_t dock_show(struct device *dev, struct device_attribute *attr,
 
 	if (value < 0)
 		return value;
-	return sprintf(buf, "%d\n", value);
+	return sysfs_emit(buf, "%d\n", value);
 }
 
 static ssize_t tablet_show(struct device *dev, struct device_attribute *attr,
@@ -721,7 +721,7 @@ static ssize_t tablet_show(struct device *dev, struct device_attribute *attr,
 
 	if (value < 0)
 		return value;
-	return sprintf(buf, "%d\n", value);
+	return sysfs_emit(buf, "%d\n", value);
 }
 
 static ssize_t postcode_show(struct device *dev, struct device_attribute *attr,
@@ -732,7 +732,7 @@ static ssize_t postcode_show(struct device *dev, struct device_attribute *attr,
 
 	if (value < 0)
 		return value;
-	return sprintf(buf, "0x%x\n", value);
+	return sysfs_emit(buf, "0x%x\n", value);
 }
 
 static ssize_t als_store(struct device *dev, struct device_attribute *attr,
diff --git a/drivers/platform/x86/huawei-wmi.c b/drivers/platform/x86/huawei-wmi.c
index dde139c69945eb..09d476dd832e8b 100644
--- a/drivers/platform/x86/huawei-wmi.c
+++ b/drivers/platform/x86/huawei-wmi.c
@@ -379,7 +379,7 @@ static ssize_t charge_control_start_threshold_show(struct device *dev,
 	if (err)
 		return err;
 
-	return sprintf(buf, "%d\n", start);
+	return sysfs_emit(buf, "%d\n", start);
 }
 
 static ssize_t charge_control_end_threshold_show(struct device *dev,
@@ -392,7 +392,7 @@ static ssize_t charge_control_end_threshold_show(struct device *dev,
 	if (err)
 		return err;
 
-	return sprintf(buf, "%d\n", end);
+	return sysfs_emit(buf, "%d\n", end);
 }
 
 static ssize_t charge_control_thresholds_show(struct device *dev,
@@ -405,7 +405,7 @@ static ssize_t charge_control_thresholds_show(struct device *dev,
 	if (err)
 		return err;
 
-	return sprintf(buf, "%d %d\n", start, end);
+	return sysfs_emit(buf, "%d %d\n", start, end);
 }
 
 static ssize_t charge_control_start_threshold_store(struct device *dev,
@@ -562,7 +562,7 @@ static ssize_t fn_lock_state_show(struct device *dev,
 	if (err)
 		return err;
 
-	return sprintf(buf, "%d\n", on);
+	return sysfs_emit(buf, "%d\n", on);
 }
 
 static ssize_t fn_lock_state_store(struct device *dev,
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 901849810ce2e7..fcf13d88fd6ed4 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -152,6 +152,11 @@ struct ideapad_private {
 		struct led_classdev led;
 		unsigned int last_brightness;
 	} kbd_bl;
+	struct {
+		bool initialized;
+		struct led_classdev led;
+		unsigned int last_brightness;
+	} fn_lock;
 };
 
 static bool no_bt_rfkill;
@@ -513,11 +518,8 @@ static ssize_t fan_mode_store(struct device *dev,
 
 static DEVICE_ATTR_RW(fan_mode);
 
-static ssize_t fn_lock_show(struct device *dev,
-			    struct device_attribute *attr,
-			    char *buf)
+static int ideapad_fn_lock_get(struct ideapad_private *priv)
 {
-	struct ideapad_private *priv = dev_get_drvdata(dev);
 	unsigned long hals;
 	int err;
 
@@ -525,7 +527,40 @@ static ssize_t fn_lock_show(struct device *dev,
 	if (err)
 		return err;
 
-	return sysfs_emit(buf, "%d\n", !!test_bit(HALS_FNLOCK_STATE_BIT, &hals));
+	return !!test_bit(HALS_FNLOCK_STATE_BIT, &hals);
+}
+
+static int ideapad_fn_lock_set(struct ideapad_private *priv, bool state)
+{
+	return exec_sals(priv->adev->handle,
+		state ? SALS_FNLOCK_ON : SALS_FNLOCK_OFF);
+}
+
+static void ideapad_fn_lock_led_notify(struct ideapad_private *priv, int brightness)
+{
+	if (!priv->fn_lock.initialized)
+		return;
+
+	if (brightness == priv->fn_lock.last_brightness)
+		return;
+
+	priv->fn_lock.last_brightness = brightness;
+
+	led_classdev_notify_brightness_hw_changed(&priv->fn_lock.led, brightness);
+}
+
+static ssize_t fn_lock_show(struct device *dev,
+			    struct device_attribute *attr,
+			    char *buf)
+{
+	struct ideapad_private *priv = dev_get_drvdata(dev);
+	int brightness;
+
+	brightness = ideapad_fn_lock_get(priv);
+	if (brightness < 0)
+		return brightness;
+
+	return sysfs_emit(buf, "%d\n", brightness);
 }
 
 static ssize_t fn_lock_store(struct device *dev,
@@ -540,10 +575,12 @@ static ssize_t fn_lock_store(struct device *dev,
 	if (err)
 		return err;
 
-	err = exec_sals(priv->adev->handle, state ? SALS_FNLOCK_ON : SALS_FNLOCK_OFF);
+	err = ideapad_fn_lock_set(priv, state);
 	if (err)
 		return err;
 
+	ideapad_fn_lock_led_notify(priv, state);
+
 	return count;
 }
 
@@ -1181,8 +1218,11 @@ static void ideapad_check_special_buttons(struct ideapad_private *priv)
 		switch (bit) {
 		case 6:	/* Z570 */
 		case 0:	/* Z580 */
-			/* Thermal Management button */
-			ideapad_input_report(priv, 65);
+			/* Thermal Management / Performance Mode button */
+			if (priv->dytc)
+				platform_profile_cycle();
+			else
+				ideapad_input_report(priv, 65);
 			break;
 		case 1:
 			/* OneKey Theater button */
@@ -1463,6 +1503,65 @@ static void ideapad_kbd_bl_exit(struct ideapad_private *priv)
 }
 
 /*
+ * FnLock LED
+ */
+static enum led_brightness ideapad_fn_lock_led_cdev_get(struct led_classdev *led_cdev)
+{
+	struct ideapad_private *priv = container_of(led_cdev, struct ideapad_private, fn_lock.led);
+
+	return ideapad_fn_lock_get(priv);
+}
+
+static int ideapad_fn_lock_led_cdev_set(struct led_classdev *led_cdev,
+	enum led_brightness brightness)
+{
+	struct ideapad_private *priv = container_of(led_cdev, struct ideapad_private, fn_lock.led);
+
+	return ideapad_fn_lock_set(priv, brightness);
+}
+
+static int ideapad_fn_lock_led_init(struct ideapad_private *priv)
+{
+	int brightness, err;
+
+	if (!priv->features.fn_lock)
+		return -ENODEV;
+
+	if (WARN_ON(priv->fn_lock.initialized))
+		return -EEXIST;
+
+	priv->fn_lock.led.max_brightness = 1;
+
+	brightness = ideapad_fn_lock_get(priv);
+	if (brightness < 0)
+		return brightness;
+
+	priv->fn_lock.last_brightness = brightness;
+	priv->fn_lock.led.name                    = "platform::" LED_FUNCTION_FNLOCK;
+	priv->fn_lock.led.brightness_get          = ideapad_fn_lock_led_cdev_get;
+	priv->fn_lock.led.brightness_set_blocking = ideapad_fn_lock_led_cdev_set;
+	priv->fn_lock.led.flags                   = LED_BRIGHT_HW_CHANGED;
+
+	err = led_classdev_register(&priv->platform_device->dev, &priv->fn_lock.led);
+	if (err)
+		return err;
+
+	priv->fn_lock.initialized = true;
+
+	return 0;
+}
+
+static void ideapad_fn_lock_led_exit(struct ideapad_private *priv)
+{
+	if (!priv->fn_lock.initialized)
+		return;
+
+	priv->fn_lock.initialized = false;
+
+	led_classdev_unregister(&priv->fn_lock.led);
+}
+
+/*
  * module init/exit
  */
 static void ideapad_sync_touchpad_state(struct ideapad_private *priv, bool send_events)
@@ -1709,7 +1808,6 @@ static void ideapad_wmi_notify(struct wmi_device *wdev, union acpi_object *data)
 {
 	struct ideapad_wmi_private *wpriv = dev_get_drvdata(&wdev->dev);
 	struct ideapad_private *priv;
-	unsigned long result;
 
 	mutex_lock(&ideapad_shared_mutex);
 
@@ -1722,11 +1820,13 @@ static void ideapad_wmi_notify(struct wmi_device *wdev, union acpi_object *data)
 		ideapad_input_report(priv, 128);
 		break;
 	case IDEAPAD_WMI_EVENT_FN_KEYS:
-		if (priv->features.set_fn_lock_led &&
-		    !eval_hals(priv->adev->handle, &result)) {
-			bool state = test_bit(HALS_FNLOCK_STATE_BIT, &result);
+		if (priv->features.set_fn_lock_led) {
+			int brightness = ideapad_fn_lock_get(priv);
 
-			exec_sals(priv->adev->handle, state ? SALS_FNLOCK_ON : SALS_FNLOCK_OFF);
+			if (brightness >= 0) {
+				ideapad_fn_lock_set(priv, brightness);
+				ideapad_fn_lock_led_notify(priv, brightness);
+			}
 		}
 
 		if (data->type != ACPI_TYPE_INTEGER) {
@@ -1738,6 +1838,10 @@ static void ideapad_wmi_notify(struct wmi_device *wdev, union acpi_object *data)
 		dev_dbg(&wdev->dev, "WMI fn-key event: 0x%llx\n",
 			data->integer.value);
 
+		/* 0x02 FnLock, 0x03 Esc */
+		if (data->integer.value == 0x02 || data->integer.value == 0x03)
+			ideapad_fn_lock_led_notify(priv, data->integer.value == 0x02);
+
 		ideapad_input_report(priv,
 				     data->integer.value | IDEAPAD_WMI_KEY);
 
@@ -1831,6 +1935,14 @@ static int ideapad_acpi_add(struct platform_device *pdev)
 			dev_info(&pdev->dev, "Keyboard backlight control not available\n");
 	}
 
+	err = ideapad_fn_lock_led_init(priv);
+	if (err) {
+		if (err != -ENODEV)
+			dev_warn(&pdev->dev, "Could not set up FnLock LED: %d\n", err);
+		else
+			dev_info(&pdev->dev, "FnLock control not available\n");
+	}
+
 	/*
 	 * On some models without a hw-switch (the yoga 2 13 at least)
 	 * VPCCMD_W_RF must be explicitly set to 1 for the wifi to work.
@@ -1887,6 +1999,7 @@ backlight_failed:
 	for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
 		ideapad_unregister_rfkill(priv, i);
 
+	ideapad_fn_lock_led_exit(priv);
 	ideapad_kbd_bl_exit(priv);
 	ideapad_input_exit(priv);
 
@@ -1914,6 +2027,7 @@ static void ideapad_acpi_remove(struct platform_device *pdev)
 	for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
 		ideapad_unregister_rfkill(priv, i);
 
+	ideapad_fn_lock_led_exit(priv);
 	ideapad_kbd_bl_exit(priv);
 	ideapad_input_exit(priv);
 	ideapad_debugfs_exit(priv);
diff --git a/drivers/platform/x86/inspur_platform_profile.c b/drivers/platform/x86/inspur_platform_profile.c
index 743705bddda368..8440defa67886a 100644
--- a/drivers/platform/x86/inspur_platform_profile.c
+++ b/drivers/platform/x86/inspur_platform_profile.c
@@ -207,6 +207,7 @@ static struct wmi_driver inspur_wmi_driver = {
 	.id_table = inspur_wmi_id_table,
 	.probe = inspur_wmi_probe,
 	.remove = inspur_wmi_remove,
+	.no_singleton = true,
 };
 
 module_wmi_driver(inspur_wmi_driver);
diff --git a/drivers/platform/x86/intel/ifs/load.c b/drivers/platform/x86/intel/ifs/load.c
index 584c44387e103c..39f19cb517498b 100644
--- a/drivers/platform/x86/intel/ifs/load.c
+++ b/drivers/platform/x86/intel/ifs/load.c
@@ -233,7 +233,9 @@ static int copy_hashes_authenticate_chunks_gen2(struct device *dev)
 		chunk_table[0] = starting_chunk_nr + i;
 		chunk_table[1] = linear_addr;
 		do {
+			local_irq_disable();
 			wrmsrl(MSR_AUTHENTICATE_AND_COPY_CHUNK, (u64)chunk_table);
+			local_irq_enable();
 			rdmsrl(MSR_CHUNKS_AUTHENTICATION_STATUS, chunk_status.data);
 			err_code = chunk_status.error_code;
 		} while (err_code == AUTH_INTERRUPTED_ERROR && --retry_count);
diff --git a/drivers/platform/x86/intel/ifs/runtest.c b/drivers/platform/x86/intel/ifs/runtest.c
index 95b4b71fab537c..282e4bfe30da32 100644
--- a/drivers/platform/x86/intel/ifs/runtest.c
+++ b/drivers/platform/x86/intel/ifs/runtest.c
@@ -69,6 +69,19 @@ static const char * const scan_test_status[] = {
 
 static void message_not_tested(struct device *dev, int cpu, union ifs_status status)
 {
+	struct ifs_data *ifsd = ifs_get_data(dev);
+
+	/*
+	 * control_error is set when the microcode runs into a problem
+	 * loading the image from the reserved BIOS memory, or it has
+	 * been corrupted. Reloading the image may fix this issue.
+	 */
+	if (status.control_error) {
+		dev_warn(dev, "CPU(s) %*pbl: Scan controller error. Batch: %02x version: 0x%x\n",
+			 cpumask_pr_args(cpu_smt_mask(cpu)), ifsd->cur_batch, ifsd->loaded_version);
+		return;
+	}
+
 	if (status.error_code < ARRAY_SIZE(scan_test_status)) {
 		dev_info(dev, "CPU(s) %*pbl: SCAN operation did not start. %s\n",
 			 cpumask_pr_args(cpu_smt_mask(cpu)),
@@ -91,16 +104,6 @@ static void message_fail(struct device *dev, int cpu, union ifs_status status)
 	struct ifs_data *ifsd = ifs_get_data(dev);
 
 	/*
-	 * control_error is set when the microcode runs into a problem
-	 * loading the image from the reserved BIOS memory, or it has
-	 * been corrupted. Reloading the image may fix this issue.
-	 */
-	if (status.control_error) {
-		dev_err(dev, "CPU(s) %*pbl: could not execute from loaded scan image. Batch: %02x version: 0x%x\n",
-			cpumask_pr_args(cpu_smt_mask(cpu)), ifsd->cur_batch, ifsd->loaded_version);
-	}
-
-	/*
 	 * signature_error is set when the output from the scan chains does not
 	 * match the expected signature. This might be a transient problem (e.g.
 	 * due to a bit flip from an alpha particle or neutron). If the problem
@@ -285,10 +288,10 @@ static void ifs_test_core(int cpu, struct device *dev)
 	/* Update status for this core */
 	ifsd->scan_details = status.data;
 
-	if (status.control_error || status.signature_error) {
+	if (status.signature_error) {
 		ifsd->status = SCAN_TEST_FAIL;
 		message_fail(dev, cpu, status);
-	} else if (status.error_code) {
+	} else if (status.control_error || status.error_code) {
 		ifsd->status = SCAN_NOT_TESTED;
 		message_not_tested(dev, cpu, status);
 	} else {
diff --git a/drivers/platform/x86/intel/pmc/arl.c b/drivers/platform/x86/intel/pmc/arl.c
index 34b4cd23bfe591..e10527c4e3e0d5 100644
--- a/drivers/platform/x86/intel/pmc/arl.c
+++ b/drivers/platform/x86/intel/pmc/arl.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains platform specific structure definitions
- * and init function used by Meteor Lake PCH.
+ * and init function used by Arrow Lake PCH.
  *
  * Copyright (c) 2022, Intel Corporation.
  * All Rights Reserved.
diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c
index 10c96c1a850afe..2ad2f8753e5d40 100644
--- a/drivers/platform/x86/intel/pmc/core.c
+++ b/drivers/platform/x86/intel/pmc/core.c
@@ -678,6 +678,41 @@ static int pmc_core_ltr_show(struct seq_file *s, void *unused)
 }
 DEFINE_SHOW_ATTRIBUTE(pmc_core_ltr);
 
+static int pmc_core_s0ix_blocker_show(struct seq_file *s, void *unused)
+{
+	struct pmc_dev *pmcdev = s->private;
+	unsigned int pmcidx;
+
+	for (pmcidx = 0; pmcidx < ARRAY_SIZE(pmcdev->pmcs); pmcidx++) {
+		const struct pmc_bit_map **maps;
+		unsigned int arr_size, r_idx;
+		u32 offset, counter;
+		struct pmc *pmc;
+
+		pmc = pmcdev->pmcs[pmcidx];
+		if (!pmc)
+			continue;
+		maps = pmc->map->s0ix_blocker_maps;
+		offset = pmc->map->s0ix_blocker_offset;
+		arr_size = pmc_core_lpm_get_arr_size(maps);
+
+		for (r_idx = 0; r_idx < arr_size; r_idx++) {
+			const struct pmc_bit_map *map;
+
+			for (map = maps[r_idx]; map->name; map++) {
+				if (!map->blk)
+					continue;
+				counter = pmc_core_reg_read(pmc, offset);
+				seq_printf(s, "PMC%d:%-30s %-30d\n", pmcidx,
+					   map->name, counter);
+				offset += map->blk * S0IX_BLK_SIZE;
+			}
+		}
+	}
+	return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(pmc_core_s0ix_blocker);
+
 static inline u64 adjust_lpm_residency(struct pmc *pmc, u32 offset,
 				       const int lpm_adj_x2)
 {
@@ -1197,6 +1232,9 @@ static void pmc_core_dbgfs_register(struct pmc_dev *pmcdev)
 
 	debugfs_create_file("ltr_show", 0444, dir, pmcdev, &pmc_core_ltr_fops);
 
+	if (primary_pmc->map->s0ix_blocker_maps)
+		debugfs_create_file("s0ix_blocker", 0444, dir, pmcdev, &pmc_core_s0ix_blocker_fops);
+
 	debugfs_create_file("package_cstate_show", 0444, dir, primary_pmc,
 			    &pmc_core_pkgc_fops);
 
diff --git a/drivers/platform/x86/intel/pmc/core.h b/drivers/platform/x86/intel/pmc/core.h
index 83504c49a0e313..ea04de7eb9e846 100644
--- a/drivers/platform/x86/intel/pmc/core.h
+++ b/drivers/platform/x86/intel/pmc/core.h
@@ -22,6 +22,7 @@ struct telem_endpoint;
 
 #define PMC_BASE_ADDR_DEFAULT			0xFE000000
 #define MAX_NUM_PMC			3
+#define S0IX_BLK_SIZE			4
 
 /* Sunrise Point Power Management Controller PCI Device ID */
 #define SPT_PMC_PCI_DEVICE_ID			0x9d21
@@ -282,12 +283,14 @@ enum ppfear_regs {
 #define LNL_PMC_LTR_OSSE			0x1B88
 #define LNL_NUM_IP_IGN_ALLOWED			27
 #define LNL_PPFEAR_NUM_ENTRIES			12
+#define LNL_S0IX_BLOCKER_OFFSET			0x2004
 
 extern const char *pmc_lpm_modes[];
 
 struct pmc_bit_map {
 	const char *name;
 	u32 bit_mask;
+	u8 blk;
 };
 
 /**
@@ -298,6 +301,7 @@ struct pmc_bit_map {
  * @pll_sts:		Maps name of PLL to corresponding bit status
  * @slps0_dbg_maps:	Array of SLP_S0_DBG* registers containing debug info
  * @ltr_show_sts:	Maps PCH IP Names to their MMIO register offsets
+ * @s0ix_blocker_maps:	Maps name of IP block to S0ix blocker counter
  * @slp_s0_offset:	PWRMBASE offset to read SLP_S0 residency
  * @ltr_ignore_offset:	PWRMBASE offset to read/write LTR ignore bit
  * @regmap_length:	Length of memory to map from PWRMBASE address to access
@@ -307,6 +311,7 @@ struct pmc_bit_map {
  * @pm_cfg_offset:	PWRMBASE offset to PM_CFG register
  * @pm_read_disable_bit: Bit index to read PMC_READ_DISABLE
  * @slps0_dbg_offset:	PWRMBASE offset to SLP_S0_DEBUG_REG*
+ * @s0ix_blocker_offset PWRMBASE offset to S0ix blocker counter
  *
  * Each PCH has unique set of register offsets and bit indexes. This structure
  * captures them to have a common implementation.
@@ -319,6 +324,7 @@ struct pmc_reg_map {
 	const struct pmc_bit_map *ltr_show_sts;
 	const struct pmc_bit_map *msr_sts;
 	const struct pmc_bit_map **lpm_sts;
+	const struct pmc_bit_map **s0ix_blocker_maps;
 	const u32 slp_s0_offset;
 	const int slp_s0_res_counter_step;
 	const u32 ltr_ignore_offset;
@@ -330,6 +336,7 @@ struct pmc_reg_map {
 	const u32 slps0_dbg_offset;
 	const u32 ltr_ignore_max;
 	const u32 pm_vric1_offset;
+	const u32 s0ix_blocker_offset;
 	/* Low Power Mode registers */
 	const int lpm_num_maps;
 	const int lpm_num_modes;
@@ -535,8 +542,10 @@ extern const struct pmc_bit_map lnl_vnn_req_status_2_map[];
 extern const struct pmc_bit_map lnl_vnn_req_status_3_map[];
 extern const struct pmc_bit_map lnl_vnn_misc_status_map[];
 extern const struct pmc_bit_map *lnl_lpm_maps[];
+extern const struct pmc_bit_map *lnl_blk_maps[];
 extern const struct pmc_bit_map lnl_pfear_map[];
 extern const struct pmc_bit_map *ext_lnl_pfear_map[];
+extern const struct pmc_bit_map lnl_signal_status_map[];
 
 /* ARL */
 extern const struct pmc_bit_map arl_socs_ltr_show_map[];
diff --git a/drivers/platform/x86/intel/pmc/lnl.c b/drivers/platform/x86/intel/pmc/lnl.c
index 068d72504683f4..e7a8077d1a3e12 100644
--- a/drivers/platform/x86/intel/pmc/lnl.c
+++ b/drivers/platform/x86/intel/pmc/lnl.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
  * This file contains platform specific structure definitions
- * and init function used by Meteor Lake PCH.
+ * and init function used by Lunar Lake PCH.
  *
  * Copyright (c) 2022, Intel Corporation.
  * All Rights Reserved.
@@ -56,264 +56,296 @@ const struct pmc_bit_map lnl_ltr_show_map[] = {
 };
 
 const struct pmc_bit_map lnl_power_gating_status_0_map[] = {
-	{"PMC_PGD0_PG_STS",			BIT(0)},
-	{"FUSE_OSSE_PGD0_PG_STS",		BIT(1)},
-	{"ESPISPI_PGD0_PG_STS",			BIT(2)},
-	{"XHCI_PGD0_PG_STS",			BIT(3)},
-	{"SPA_PGD0_PG_STS",			BIT(4)},
-	{"SPB_PGD0_PG_STS",			BIT(5)},
-	{"SPR16B0_PGD0_PG_STS",			BIT(6)},
-	{"GBE_PGD0_PG_STS",			BIT(7)},
-	{"SBR8B7_PGD0_PG_STS",			BIT(8)},
-	{"SBR8B6_PGD0_PG_STS",			BIT(9)},
-	{"SBR16B1_PGD0_PG_STS",			BIT(10)},
-	{"SBR8B8_PGD0_PG_STS",			BIT(11)},
-	{"ESE_PGD3_PG_STS",			BIT(12)},
-	{"D2D_DISP_PGD0_PG_STS",		BIT(13)},
-	{"LPSS_PGD0_PG_STS",			BIT(14)},
-	{"LPC_PGD0_PG_STS",			BIT(15)},
-	{"SMB_PGD0_PG_STS",			BIT(16)},
-	{"ISH_PGD0_PG_STS",			BIT(17)},
-	{"SBR8B2_PGD0_PG_STS",			BIT(18)},
-	{"NPK_PGD0_PG_STS",			BIT(19)},
-	{"D2D_NOC_PGD0_PG_STS",			BIT(20)},
-	{"SAFSS_PGD0_PG_STS",			BIT(21)},
-	{"FUSE_PGD0_PG_STS",			BIT(22)},
-	{"D2D_DISP_PGD1_PG_STS",		BIT(23)},
-	{"MPFPW1_PGD0_PG_STS",			BIT(24)},
-	{"XDCI_PGD0_PG_STS",			BIT(25)},
-	{"EXI_PGD0_PG_STS",			BIT(26)},
-	{"CSE_PGD0_PG_STS",			BIT(27)},
-	{"KVMCC_PGD0_PG_STS",			BIT(28)},
-	{"PMT_PGD0_PG_STS",			BIT(29)},
-	{"CLINK_PGD0_PG_STS",			BIT(30)},
-	{"PTIO_PGD0_PG_STS",			BIT(31)},
+	{"PMC_PGD0_PG_STS",			BIT(0),		0},
+	{"FUSE_OSSE_PGD0_PG_STS",		BIT(1),		0},
+	{"ESPISPI_PGD0_PG_STS",			BIT(2),		0},
+	{"XHCI_PGD0_PG_STS",			BIT(3),		1},
+	{"SPA_PGD0_PG_STS",			BIT(4),		1},
+	{"SPB_PGD0_PG_STS",			BIT(5),		1},
+	{"SPR16B0_PGD0_PG_STS",			BIT(6),		0},
+	{"GBE_PGD0_PG_STS",			BIT(7),		1},
+	{"SBR8B7_PGD0_PG_STS",			BIT(8),		0},
+	{"SBR8B6_PGD0_PG_STS",			BIT(9),		0},
+	{"SBR16B1_PGD0_PG_STS",			BIT(10),	0},
+	{"SBR8B8_PGD0_PG_STS",			BIT(11),	0},
+	{"ESE_PGD3_PG_STS",			BIT(12),	1},
+	{"D2D_DISP_PGD0_PG_STS",		BIT(13),	1},
+	{"LPSS_PGD0_PG_STS",			BIT(14),	1},
+	{"LPC_PGD0_PG_STS",			BIT(15),	0},
+	{"SMB_PGD0_PG_STS",			BIT(16),	0},
+	{"ISH_PGD0_PG_STS",			BIT(17),	0},
+	{"SBR8B2_PGD0_PG_STS",			BIT(18),	0},
+	{"NPK_PGD0_PG_STS",			BIT(19),	0},
+	{"D2D_NOC_PGD0_PG_STS",			BIT(20),	0},
+	{"SAFSS_PGD0_PG_STS",			BIT(21),	0},
+	{"FUSE_PGD0_PG_STS",			BIT(22),	0},
+	{"D2D_DISP_PGD1_PG_STS",		BIT(23),	1},
+	{"MPFPW1_PGD0_PG_STS",			BIT(24),	0},
+	{"XDCI_PGD0_PG_STS",			BIT(25),	1},
+	{"EXI_PGD0_PG_STS",			BIT(26),	0},
+	{"CSE_PGD0_PG_STS",			BIT(27),	1},
+	{"KVMCC_PGD0_PG_STS",			BIT(28),	1},
+	{"PMT_PGD0_PG_STS",			BIT(29),	1},
+	{"CLINK_PGD0_PG_STS",			BIT(30),	1},
+	{"PTIO_PGD0_PG_STS",			BIT(31),	1},
 	{}
 };
 
 const struct pmc_bit_map lnl_power_gating_status_1_map[] = {
-	{"USBR0_PGD0_PG_STS",			BIT(0)},
-	{"SUSRAM_PGD0_PG_STS",			BIT(1)},
-	{"SMT1_PGD0_PG_STS",			BIT(2)},
-	{"U3FPW1_PGD0_PG_STS",			BIT(3)},
-	{"SMS2_PGD0_PG_STS",			BIT(4)},
-	{"SMS1_PGD0_PG_STS",			BIT(5)},
-	{"CSMERTC_PGD0_PG_STS",			BIT(6)},
-	{"CSMEPSF_PGD0_PG_STS",			BIT(7)},
-	{"FIA_PG_PGD0_PG_STS",			BIT(8)},
-	{"SBR16B4_PGD0_PG_STS",			BIT(9)},
-	{"P2SB8B_PGD0_PG_STS",			BIT(10)},
-	{"DBG_SBR_PGD0_PG_STS",			BIT(11)},
-	{"SBR8B9_PGD0_PG_STS",			BIT(12)},
-	{"OSSE_SMT1_PGD0_PG_STS",		BIT(13)},
-	{"SBR8B10_PGD0_PG_STS",			BIT(14)},
-	{"SBR16B3_PGD0_PG_STS",			BIT(15)},
-	{"G5FPW1_PGD0_PG_STS",			BIT(16)},
-	{"SBRG_PGD0_PG_STS",			BIT(17)},
-	{"PSF4_PGD0_PG_STS",			BIT(18)},
-	{"CNVI_PGD0_PG_STS",			BIT(19)},
-	{"USFX2_PGD0_PG_STS",			BIT(20)},
-	{"ENDBG_PGD0_PG_STS",			BIT(21)},
-	{"FIACPCB_P5X4_PGD0_PG_STS",		BIT(22)},
-	{"SBR8B3_PGD0_PG_STS",			BIT(23)},
-	{"SBR8B0_PGD0_PG_STS",			BIT(24)},
-	{"NPK_PGD1_PG_STS",			BIT(25)},
-	{"OSSE_HOTHAM_PGD0_PG_STS",		BIT(26)},
-	{"D2D_NOC_PGD2_PG_STS",			BIT(27)},
-	{"SBR8B1_PGD0_PG_STS",			BIT(28)},
-	{"PSF6_PGD0_PG_STS",			BIT(29)},
-	{"PSF7_PGD0_PG_STS",			BIT(30)},
-	{"FIA_U_PGD0_PG_STS",			BIT(31)},
+	{"USBR0_PGD0_PG_STS",			BIT(0),		1},
+	{"SUSRAM_PGD0_PG_STS",			BIT(1),		1},
+	{"SMT1_PGD0_PG_STS",			BIT(2),		1},
+	{"U3FPW1_PGD0_PG_STS",			BIT(3),		0},
+	{"SMS2_PGD0_PG_STS",			BIT(4),		1},
+	{"SMS1_PGD0_PG_STS",			BIT(5),		1},
+	{"CSMERTC_PGD0_PG_STS",			BIT(6),		0},
+	{"CSMEPSF_PGD0_PG_STS",			BIT(7),		0},
+	{"FIA_PG_PGD0_PG_STS",			BIT(8),		0},
+	{"SBR16B4_PGD0_PG_STS",			BIT(9),		0},
+	{"P2SB8B_PGD0_PG_STS",			BIT(10),	1},
+	{"DBG_SBR_PGD0_PG_STS",			BIT(11),	0},
+	{"SBR8B9_PGD0_PG_STS",			BIT(12),	0},
+	{"OSSE_SMT1_PGD0_PG_STS",		BIT(13),	1},
+	{"SBR8B10_PGD0_PG_STS",			BIT(14),	0},
+	{"SBR16B3_PGD0_PG_STS",			BIT(15),	0},
+	{"G5FPW1_PGD0_PG_STS",			BIT(16),	0},
+	{"SBRG_PGD0_PG_STS",			BIT(17),	0},
+	{"PSF4_PGD0_PG_STS",			BIT(18),	0},
+	{"CNVI_PGD0_PG_STS",			BIT(19),	0},
+	{"USFX2_PGD0_PG_STS",			BIT(20),	1},
+	{"ENDBG_PGD0_PG_STS",			BIT(21),	0},
+	{"FIACPCB_P5X4_PGD0_PG_STS",		BIT(22),	0},
+	{"SBR8B3_PGD0_PG_STS",			BIT(23),	0},
+	{"SBR8B0_PGD0_PG_STS",			BIT(24),	0},
+	{"NPK_PGD1_PG_STS",			BIT(25),	0},
+	{"OSSE_HOTHAM_PGD0_PG_STS",		BIT(26),	1},
+	{"D2D_NOC_PGD2_PG_STS",			BIT(27),	1},
+	{"SBR8B1_PGD0_PG_STS",			BIT(28),	0},
+	{"PSF6_PGD0_PG_STS",			BIT(29),	0},
+	{"PSF7_PGD0_PG_STS",			BIT(30),	0},
+	{"FIA_U_PGD0_PG_STS",			BIT(31),	0},
 	{}
 };
 
 const struct pmc_bit_map lnl_power_gating_status_2_map[] = {
-	{"PSF8_PGD0_PG_STS",			BIT(0)},
-	{"SBR16B2_PGD0_PG_STS",			BIT(1)},
-	{"D2D_IPU_PGD0_PG_STS",			BIT(2)},
-	{"FIACPCB_U_PGD0_PG_STS",		BIT(3)},
-	{"TAM_PGD0_PG_STS",			BIT(4)},
-	{"D2D_NOC_PGD1_PG_STS",			BIT(5)},
-	{"TBTLSX_PGD0_PG_STS",			BIT(6)},
-	{"THC0_PGD0_PG_STS",			BIT(7)},
-	{"THC1_PGD0_PG_STS",			BIT(8)},
-	{"PMC_PGD0_PG_STS",			BIT(9)},
-	{"SBR8B5_PGD0_PG_STS",			BIT(10)},
-	{"UFSPW1_PGD0_PG_STS",			BIT(11)},
-	{"DBC_PGD0_PG_STS",			BIT(12)},
-	{"TCSS_PGD0_PG_STS",			BIT(13)},
-	{"FIA_P5X4_PGD0_PG_STS",		BIT(14)},
-	{"DISP_PGA_PGD0_PG_STS",		BIT(15)},
-	{"DISP_PSF_PGD0_PG_STS",		BIT(16)},
-	{"PSF0_PGD0_PG_STS",			BIT(17)},
-	{"P2SB16B_PGD0_PG_STS",			BIT(18)},
-	{"ACE_PGD0_PG_STS",			BIT(19)},
-	{"ACE_PGD1_PG_STS",			BIT(20)},
-	{"ACE_PGD2_PG_STS",			BIT(21)},
-	{"ACE_PGD3_PG_STS",			BIT(22)},
-	{"ACE_PGD4_PG_STS",			BIT(23)},
-	{"ACE_PGD5_PG_STS",			BIT(24)},
-	{"ACE_PGD6_PG_STS",			BIT(25)},
-	{"ACE_PGD7_PG_STS",			BIT(26)},
-	{"ACE_PGD8_PG_STS",			BIT(27)},
-	{"ACE_PGD9_PG_STS",			BIT(28)},
-	{"ACE_PGD10_PG_STS",			BIT(29)},
-	{"FIACPCB_PG_PGD0_PG_STS",		BIT(30)},
-	{"OSSE_PGD0_PG_STS",			BIT(31)},
+	{"PSF8_PGD0_PG_STS",			BIT(0),		0},
+	{"SBR16B2_PGD0_PG_STS",			BIT(1),		0},
+	{"D2D_IPU_PGD0_PG_STS",			BIT(2),		1},
+	{"FIACPCB_U_PGD0_PG_STS",		BIT(3),		0},
+	{"TAM_PGD0_PG_STS",			BIT(4),		1},
+	{"D2D_NOC_PGD1_PG_STS",			BIT(5),		1},
+	{"TBTLSX_PGD0_PG_STS",			BIT(6),		1},
+	{"THC0_PGD0_PG_STS",			BIT(7),		1},
+	{"THC1_PGD0_PG_STS",			BIT(8),		1},
+	{"PMC_PGD0_PG_STS",			BIT(9),		0},
+	{"SBR8B5_PGD0_PG_STS",			BIT(10),	0},
+	{"UFSPW1_PGD0_PG_STS",			BIT(11),	0},
+	{"DBC_PGD0_PG_STS",			BIT(12),	0},
+	{"TCSS_PGD0_PG_STS",			BIT(13),	0},
+	{"FIA_P5X4_PGD0_PG_STS",		BIT(14),	0},
+	{"DISP_PGA_PGD0_PG_STS",		BIT(15),	0},
+	{"DISP_PSF_PGD0_PG_STS",		BIT(16),	0},
+	{"PSF0_PGD0_PG_STS",			BIT(17),	0},
+	{"P2SB16B_PGD0_PG_STS",			BIT(18),	1},
+	{"ACE_PGD0_PG_STS",			BIT(19),	0},
+	{"ACE_PGD1_PG_STS",			BIT(20),	0},
+	{"ACE_PGD2_PG_STS",			BIT(21),	0},
+	{"ACE_PGD3_PG_STS",			BIT(22),	0},
+	{"ACE_PGD4_PG_STS",			BIT(23),	0},
+	{"ACE_PGD5_PG_STS",			BIT(24),	0},
+	{"ACE_PGD6_PG_STS",			BIT(25),	0},
+	{"ACE_PGD7_PG_STS",			BIT(26),	0},
+	{"ACE_PGD8_PG_STS",			BIT(27),	0},
+	{"ACE_PGD9_PG_STS",			BIT(28),	0},
+	{"ACE_PGD10_PG_STS",			BIT(29),	0},
+	{"FIACPCB_PG_PGD0_PG_STS",		BIT(30),	0},
+	{"OSSE_PGD0_PG_STS",			BIT(31),	1},
 	{}
 };
 
 const struct pmc_bit_map lnl_d3_status_0_map[] = {
-	{"LPSS_D3_STS",				BIT(3)},
-	{"XDCI_D3_STS",				BIT(4)},
-	{"XHCI_D3_STS",				BIT(5)},
-	{"SPA_D3_STS",				BIT(12)},
-	{"SPB_D3_STS",				BIT(13)},
-	{"OSSE_D3_STS",				BIT(15)},
-	{"ESPISPI_D3_STS",			BIT(18)},
-	{"PSTH_D3_STS",				BIT(21)},
+	{"LPSS_D3_STS",				BIT(3),		1},
+	{"XDCI_D3_STS",				BIT(4),		1},
+	{"XHCI_D3_STS",				BIT(5),		1},
+	{"SPA_D3_STS",				BIT(12),	0},
+	{"SPB_D3_STS",				BIT(13),	0},
+	{"OSSE_D3_STS",				BIT(15),	0},
+	{"ESPISPI_D3_STS",			BIT(18),	0},
+	{"PSTH_D3_STS",				BIT(21),	0},
 	{}
 };
 
 const struct pmc_bit_map lnl_d3_status_1_map[] = {
-	{"OSSE_SMT1_D3_STS",			BIT(7)},
-	{"GBE_D3_STS",				BIT(19)},
-	{"ITSS_D3_STS",				BIT(23)},
-	{"CNVI_D3_STS",				BIT(27)},
-	{"UFSX2_D3_STS",			BIT(28)},
-	{"OSSE_HOTHAM_D3_STS",			BIT(31)},
+	{"OSSE_SMT1_D3_STS",			BIT(7),		0},
+	{"GBE_D3_STS",				BIT(19),	0},
+	{"ITSS_D3_STS",				BIT(23),	0},
+	{"CNVI_D3_STS",				BIT(27),	0},
+	{"UFSX2_D3_STS",			BIT(28),	1},
+	{"OSSE_HOTHAM_D3_STS",			BIT(31),	0},
 	{}
 };
 
 const struct pmc_bit_map lnl_d3_status_2_map[] = {
-	{"ESE_D3_STS",				BIT(0)},
-	{"CSMERTC_D3_STS",			BIT(1)},
-	{"SUSRAM_D3_STS",			BIT(2)},
-	{"CSE_D3_STS",				BIT(4)},
-	{"KVMCC_D3_STS",			BIT(5)},
-	{"USBR0_D3_STS",			BIT(6)},
-	{"ISH_D3_STS",				BIT(7)},
-	{"SMT1_D3_STS",				BIT(8)},
-	{"SMT2_D3_STS",				BIT(9)},
-	{"SMT3_D3_STS",				BIT(10)},
-	{"OSSE_SMT2_D3_STS",			BIT(13)},
-	{"CLINK_D3_STS",			BIT(14)},
-	{"PTIO_D3_STS",				BIT(16)},
-	{"PMT_D3_STS",				BIT(17)},
-	{"SMS1_D3_STS",				BIT(18)},
-	{"SMS2_D3_STS",				BIT(19)},
+	{"ESE_D3_STS",				BIT(0),		0},
+	{"CSMERTC_D3_STS",			BIT(1),		0},
+	{"SUSRAM_D3_STS",			BIT(2),		0},
+	{"CSE_D3_STS",				BIT(4),		0},
+	{"KVMCC_D3_STS",			BIT(5),		0},
+	{"USBR0_D3_STS",			BIT(6),		0},
+	{"ISH_D3_STS",				BIT(7),		0},
+	{"SMT1_D3_STS",				BIT(8),		0},
+	{"SMT2_D3_STS",				BIT(9),		0},
+	{"SMT3_D3_STS",				BIT(10),	0},
+	{"OSSE_SMT2_D3_STS",			BIT(13),	0},
+	{"CLINK_D3_STS",			BIT(14),	0},
+	{"PTIO_D3_STS",				BIT(16),	0},
+	{"PMT_D3_STS",				BIT(17),	0},
+	{"SMS1_D3_STS",				BIT(18),	0},
+	{"SMS2_D3_STS",				BIT(19),	0},
 	{}
 };
 
 const struct pmc_bit_map lnl_d3_status_3_map[] = {
-	{"THC0_D3_STS",				BIT(14)},
-	{"THC1_D3_STS",				BIT(15)},
-	{"OSSE_SMT3_D3_STS",			BIT(21)},
-	{"ACE_D3_STS",				BIT(23)},
+	{"THC0_D3_STS",				BIT(14),	1},
+	{"THC1_D3_STS",				BIT(15),	1},
+	{"OSSE_SMT3_D3_STS",			BIT(21),	0},
+	{"ACE_D3_STS",				BIT(23),	0},
 	{}
 };
 
 const struct pmc_bit_map lnl_vnn_req_status_0_map[] = {
-	{"LPSS_VNN_REQ_STS",			BIT(3)},
-	{"OSSE_VNN_REQ_STS",			BIT(15)},
-	{"ESPISPI_VNN_REQ_STS",			BIT(18)},
+	{"LPSS_VNN_REQ_STS",			BIT(3),		1},
+	{"OSSE_VNN_REQ_STS",			BIT(15),	1},
+	{"ESPISPI_VNN_REQ_STS",			BIT(18),	1},
 	{}
 };
 
 const struct pmc_bit_map lnl_vnn_req_status_1_map[] = {
-	{"NPK_VNN_REQ_STS",			BIT(4)},
-	{"OSSE_SMT1_VNN_REQ_STS",		BIT(7)},
-	{"DFXAGG_VNN_REQ_STS",			BIT(8)},
-	{"EXI_VNN_REQ_STS",			BIT(9)},
-	{"P2D_VNN_REQ_STS",			BIT(18)},
-	{"GBE_VNN_REQ_STS",			BIT(19)},
-	{"SMB_VNN_REQ_STS",			BIT(25)},
-	{"LPC_VNN_REQ_STS",			BIT(26)},
+	{"NPK_VNN_REQ_STS",			BIT(4),		1},
+	{"OSSE_SMT1_VNN_REQ_STS",		BIT(7),		1},
+	{"DFXAGG_VNN_REQ_STS",			BIT(8),		0},
+	{"EXI_VNN_REQ_STS",			BIT(9),		1},
+	{"P2D_VNN_REQ_STS",			BIT(18),	1},
+	{"GBE_VNN_REQ_STS",			BIT(19),	1},
+	{"SMB_VNN_REQ_STS",			BIT(25),	1},
+	{"LPC_VNN_REQ_STS",			BIT(26),	0},
 	{}
 };
 
 const struct pmc_bit_map lnl_vnn_req_status_2_map[] = {
-	{"eSE_VNN_REQ_STS",			BIT(0)},
-	{"CSMERTC_VNN_REQ_STS",			BIT(1)},
-	{"CSE_VNN_REQ_STS",			BIT(4)},
-	{"ISH_VNN_REQ_STS",			BIT(7)},
-	{"SMT1_VNN_REQ_STS",			BIT(8)},
-	{"CLINK_VNN_REQ_STS",			BIT(14)},
-	{"SMS1_VNN_REQ_STS",			BIT(18)},
-	{"SMS2_VNN_REQ_STS",			BIT(19)},
-	{"GPIOCOM4_VNN_REQ_STS",		BIT(20)},
-	{"GPIOCOM3_VNN_REQ_STS",		BIT(21)},
-	{"GPIOCOM2_VNN_REQ_STS",		BIT(22)},
-	{"GPIOCOM1_VNN_REQ_STS",		BIT(23)},
-	{"GPIOCOM0_VNN_REQ_STS",		BIT(24)},
+	{"eSE_VNN_REQ_STS",			BIT(0),		1},
+	{"CSMERTC_VNN_REQ_STS",			BIT(1),		1},
+	{"CSE_VNN_REQ_STS",			BIT(4),		1},
+	{"ISH_VNN_REQ_STS",			BIT(7),		1},
+	{"SMT1_VNN_REQ_STS",			BIT(8),		1},
+	{"CLINK_VNN_REQ_STS",			BIT(14),	1},
+	{"SMS1_VNN_REQ_STS",			BIT(18),	1},
+	{"SMS2_VNN_REQ_STS",			BIT(19),	1},
+	{"GPIOCOM4_VNN_REQ_STS",		BIT(20),	1},
+	{"GPIOCOM3_VNN_REQ_STS",		BIT(21),	1},
+	{"GPIOCOM2_VNN_REQ_STS",		BIT(22),	0},
+	{"GPIOCOM1_VNN_REQ_STS",		BIT(23),	1},
+	{"GPIOCOM0_VNN_REQ_STS",		BIT(24),	1},
 	{}
 };
 
 const struct pmc_bit_map lnl_vnn_req_status_3_map[] = {
-	{"DISP_SHIM_VNN_REQ_STS",		BIT(2)},
-	{"DTS0_VNN_REQ_STS",			BIT(7)},
-	{"GPIOCOM5_VNN_REQ_STS",		BIT(11)},
+	{"DISP_SHIM_VNN_REQ_STS",		BIT(2),		0},
+	{"DTS0_VNN_REQ_STS",			BIT(7),		0},
+	{"GPIOCOM5_VNN_REQ_STS",		BIT(11),	2},
 	{}
 };
 
 const struct pmc_bit_map lnl_vnn_misc_status_map[] = {
-	{"CPU_C10_REQ_STS",			BIT(0)},
-	{"TS_OFF_REQ_STS",			BIT(1)},
-	{"PNDE_MET_REQ_STS",			BIT(2)},
-	{"PCIE_DEEP_PM_REQ_STS",		BIT(3)},
-	{"PMC_CLK_THROTTLE_EN_REQ_STS",		BIT(4)},
-	{"NPK_VNNAON_REQ_STS",			BIT(5)},
-	{"VNN_SOC_REQ_STS",			BIT(6)},
-	{"ISH_VNNAON_REQ_STS",			BIT(7)},
-	{"D2D_NOC_CFI_QACTIVE_REQ_STS",		BIT(8)},
-	{"D2D_NOC_GPSB_QACTIVE_REQ_STS",	BIT(9)},
-	{"D2D_NOC_IPU_QACTIVE_REQ_STS",		BIT(10)},
-	{"PLT_GREATER_REQ_STS",			BIT(11)},
-	{"PCIE_CLKREQ_REQ_STS",			BIT(12)},
-	{"PMC_IDLE_FB_OCP_REQ_STS",		BIT(13)},
-	{"PM_SYNC_STATES_REQ_STS",		BIT(14)},
-	{"EA_REQ_STS",				BIT(15)},
-	{"MPHY_CORE_OFF_REQ_STS",		BIT(16)},
-	{"BRK_EV_EN_REQ_STS",			BIT(17)},
-	{"AUTO_DEMO_EN_REQ_STS",		BIT(18)},
-	{"ITSS_CLK_SRC_REQ_STS",		BIT(19)},
-	{"LPC_CLK_SRC_REQ_STS",			BIT(20)},
-	{"ARC_IDLE_REQ_STS",			BIT(21)},
-	{"MPHY_SUS_REQ_STS",			BIT(22)},
-	{"FIA_DEEP_PM_REQ_STS",			BIT(23)},
-	{"UXD_CONNECTED_REQ_STS",		BIT(24)},
-	{"ARC_INTERRUPT_WAKE_REQ_STS",	BIT(25)},
-	{"D2D_NOC_DISP_DDI_QACTIVE_REQ_STS",	BIT(26)},
-	{"PRE_WAKE0_REQ_STS",			BIT(27)},
-	{"PRE_WAKE1_REQ_STS",			BIT(28)},
-	{"PRE_WAKE2_EN_REQ_STS",		BIT(29)},
-	{"WOV_REQ_STS",				BIT(30)},
-	{"D2D_NOC_DISP_EDP_QACTIVE_REQ_STS_31",	BIT(31)},
+	{"CPU_C10_REQ_STS",			BIT(0),		0},
+	{"TS_OFF_REQ_STS",			BIT(1),		0},
+	{"PNDE_MET_REQ_STS",			BIT(2),		1},
+	{"PCIE_DEEP_PM_REQ_STS",		BIT(3),		0},
+	{"PMC_CLK_THROTTLE_EN_REQ_STS",		BIT(4),		0},
+	{"NPK_VNNAON_REQ_STS",			BIT(5),		0},
+	{"VNN_SOC_REQ_STS",			BIT(6),		1},
+	{"ISH_VNNAON_REQ_STS",			BIT(7),		0},
+	{"D2D_NOC_CFI_QACTIVE_REQ_STS",		BIT(8),		1},
+	{"D2D_NOC_GPSB_QACTIVE_REQ_STS",	BIT(9),		1},
+	{"D2D_NOC_IPU_QACTIVE_REQ_STS",		BIT(10),	1},
+	{"PLT_GREATER_REQ_STS",			BIT(11),	1},
+	{"PCIE_CLKREQ_REQ_STS",			BIT(12),	0},
+	{"PMC_IDLE_FB_OCP_REQ_STS",		BIT(13),	0},
+	{"PM_SYNC_STATES_REQ_STS",		BIT(14),	0},
+	{"EA_REQ_STS",				BIT(15),	0},
+	{"MPHY_CORE_OFF_REQ_STS",		BIT(16),	0},
+	{"BRK_EV_EN_REQ_STS",			BIT(17),	0},
+	{"AUTO_DEMO_EN_REQ_STS",		BIT(18),	0},
+	{"ITSS_CLK_SRC_REQ_STS",		BIT(19),	1},
+	{"LPC_CLK_SRC_REQ_STS",			BIT(20),	0},
+	{"ARC_IDLE_REQ_STS",			BIT(21),	0},
+	{"MPHY_SUS_REQ_STS",			BIT(22),	0},
+	{"FIA_DEEP_PM_REQ_STS",			BIT(23),	0},
+	{"UXD_CONNECTED_REQ_STS",		BIT(24),	1},
+	{"ARC_INTERRUPT_WAKE_REQ_STS",		BIT(25),	0},
+	{"D2D_NOC_DISP_DDI_QACTIVE_REQ_STS",	BIT(26),	1},
+	{"PRE_WAKE0_REQ_STS",			BIT(27),	1},
+	{"PRE_WAKE1_REQ_STS",			BIT(28),	1},
+	{"PRE_WAKE2_EN_REQ_STS",		BIT(29),	1},
+	{"WOV_REQ_STS",				BIT(30),	0},
+	{"D2D_NOC_DISP_EDP_QACTIVE_REQ_STS_31",	BIT(31),	1},
 	{}
 };
 
 const struct pmc_bit_map lnl_clocksource_status_map[] = {
-	{"AON2_OFF_STS",			BIT(0)},
-	{"AON3_OFF_STS",			BIT(1)},
-	{"AON4_OFF_STS",			BIT(2)},
-	{"AON5_OFF_STS",			BIT(3)},
-	{"AON1_OFF_STS",			BIT(4)},
-	{"MPFPW1_0_PLL_OFF_STS",		BIT(6)},
-	{"USB3_PLL_OFF_STS",			BIT(8)},
-	{"AON3_SPL_OFF_STS",			BIT(9)},
-	{"G5FPW1_PLL_OFF_STS",			BIT(15)},
-	{"XTAL_AGGR_OFF_STS",			BIT(17)},
-	{"USB2_PLL_OFF_STS",			BIT(18)},
-	{"SAF_PLL_OFF_STS",			BIT(19)},
-	{"SE_TCSS_PLL_OFF_STS",			BIT(20)},
-	{"DDI_PLL_OFF_STS",			BIT(21)},
-	{"FILTER_PLL_OFF_STS",			BIT(22)},
-	{"ACE_PLL_OFF_STS",			BIT(24)},
-	{"FABRIC_PLL_OFF_STS",			BIT(25)},
-	{"SOC_PLL_OFF_STS",			BIT(26)},
-	{"REF_OFF_STS",				BIT(28)},
-	{"IMG_OFF_STS",				BIT(29)},
-	{"RTC_PLL_OFF_STS",			BIT(31)},
+	{"AON2_OFF_STS",			BIT(0),		0},
+	{"AON3_OFF_STS",			BIT(1),		1},
+	{"AON4_OFF_STS",			BIT(2),		1},
+	{"AON5_OFF_STS",			BIT(3),		1},
+	{"AON1_OFF_STS",			BIT(4),		0},
+	{"MPFPW1_0_PLL_OFF_STS",		BIT(6),		1},
+	{"USB3_PLL_OFF_STS",			BIT(8),		1},
+	{"AON3_SPL_OFF_STS",			BIT(9),		1},
+	{"G5FPW1_PLL_OFF_STS",			BIT(15),	1},
+	{"XTAL_AGGR_OFF_STS",			BIT(17),	1},
+	{"USB2_PLL_OFF_STS",			BIT(18),	0},
+	{"SAF_PLL_OFF_STS",			BIT(19),	1},
+	{"SE_TCSS_PLL_OFF_STS",			BIT(20),	1},
+	{"DDI_PLL_OFF_STS",			BIT(21),	1},
+	{"FILTER_PLL_OFF_STS",			BIT(22),	1},
+	{"ACE_PLL_OFF_STS",			BIT(24),	0},
+	{"FABRIC_PLL_OFF_STS",			BIT(25),	1},
+	{"SOC_PLL_OFF_STS",			BIT(26),	1},
+	{"REF_OFF_STS",				BIT(28),	1},
+	{"IMG_OFF_STS",				BIT(29),	1},
+	{"RTC_PLL_OFF_STS",			BIT(31),	0},
+	{}
+};
+
+const struct pmc_bit_map lnl_signal_status_map[] = {
+	{"LSX_Wake0_STS",			BIT(0),		0},
+	{"LSX_Wake1_STS",			BIT(1),		0},
+	{"LSX_Wake2_STS",			BIT(2),		0},
+	{"LSX_Wake3_STS",			BIT(3),		0},
+	{"LSX_Wake4_STS",			BIT(4),		0},
+	{"LSX_Wake5_STS",			BIT(5),		0},
+	{"LSX_Wake6_STS",			BIT(6),		0},
+	{"LSX_Wake7_STS",			BIT(7),		0},
+	{"LPSS_Wake0_STS",			BIT(8),		1},
+	{"LPSS_Wake1_STS",			BIT(9),		1},
+	{"Int_Timer_SS_Wake0_STS",		BIT(10),	1},
+	{"Int_Timer_SS_Wake1_STS",		BIT(11),	1},
+	{"Int_Timer_SS_Wake2_STS",		BIT(12),	1},
+	{"Int_Timer_SS_Wake3_STS",		BIT(13),	1},
+	{"Int_Timer_SS_Wake4_STS",		BIT(14),	1},
+	{"Int_Timer_SS_Wake5_STS",		BIT(15),	1},
+	{}
+};
+
+const struct pmc_bit_map lnl_rsc_status_map[] = {
+	{"Memory",				0,		1},
+	{"PSF0",				0,		1},
+	{"PSF4",				0,		1},
+	{"PSF6",				0,		1},
+	{"PSF7",				0,		1},
+	{"PSF8",				0,		1},
+	{"SAF_CFI_LINK",			0,		1},
+	{"SBR",					0,		1},
 	{}
 };
 
@@ -331,7 +363,26 @@ const struct pmc_bit_map *lnl_lpm_maps[] = {
 	lnl_vnn_req_status_2_map,
 	lnl_vnn_req_status_3_map,
 	lnl_vnn_misc_status_map,
-	mtl_socm_signal_status_map,
+	lnl_signal_status_map,
+	NULL
+};
+
+const struct pmc_bit_map *lnl_blk_maps[] = {
+	lnl_power_gating_status_0_map,
+	lnl_power_gating_status_1_map,
+	lnl_power_gating_status_2_map,
+	lnl_rsc_status_map,
+	lnl_vnn_req_status_0_map,
+	lnl_vnn_req_status_1_map,
+	lnl_vnn_req_status_2_map,
+	lnl_vnn_req_status_3_map,
+	lnl_d3_status_0_map,
+	lnl_d3_status_1_map,
+	lnl_d3_status_2_map,
+	lnl_d3_status_3_map,
+	lnl_clocksource_status_map,
+	lnl_vnn_misc_status_map,
+	lnl_signal_status_map,
 	NULL
 };
 
@@ -475,6 +526,8 @@ const struct pmc_reg_map lnl_socm_reg_map = {
 	.lpm_sts = lnl_lpm_maps,
 	.lpm_status_offset = MTL_LPM_STATUS_OFFSET,
 	.lpm_live_status_offset = MTL_LPM_LIVE_STATUS_OFFSET,
+	.s0ix_blocker_maps = lnl_blk_maps,
+	.s0ix_blocker_offset = LNL_S0IX_BLOCKER_OFFSET,
 };
 
 #define LNL_NPU_PCI_DEV		0x643e
diff --git a/drivers/platform/x86/intel/sdsi.c b/drivers/platform/x86/intel/sdsi.c
index 556e7c6dbb05a3..277e4f4b20acfb 100644
--- a/drivers/platform/x86/intel/sdsi.c
+++ b/drivers/platform/x86/intel/sdsi.c
@@ -15,6 +15,7 @@
 #include <linux/iopoll.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/overflow.h>
 #include <linux/pci.h>
 #include <linux/slab.h>
 #include <linux/sysfs.h>
@@ -66,6 +67,8 @@
 #define CTRL_OWNER			GENMASK(5, 4)
 #define CTRL_COMPLETE			BIT(6)
 #define CTRL_READY			BIT(7)
+#define CTRL_INBAND_LOCK		BIT(32)
+#define CTRL_METER_ENABLE_DRAM		BIT(33)
 #define CTRL_STATUS			GENMASK(15, 8)
 #define CTRL_PACKET_SIZE		GENMASK(31, 16)
 #define CTRL_MSG_SIZE			GENMASK(63, 48)
@@ -93,6 +96,7 @@ enum sdsi_command {
 struct sdsi_mbox_info {
 	u64	*payload;
 	void	*buffer;
+	u64	control_flags;
 	int	size;
 };
 
@@ -156,8 +160,8 @@ static int sdsi_status_to_errno(u32 status)
 	}
 }
 
-static int sdsi_mbox_cmd_read(struct sdsi_priv *priv, struct sdsi_mbox_info *info,
-			      size_t *data_size)
+static int sdsi_mbox_poll(struct sdsi_priv *priv, struct sdsi_mbox_info *info,
+			  size_t *data_size)
 {
 	struct device *dev = priv->dev;
 	u32 total, loop, eom, status, message_size;
@@ -166,18 +170,10 @@ static int sdsi_mbox_cmd_read(struct sdsi_priv *priv, struct sdsi_mbox_info *inf
 
 	lockdep_assert_held(&priv->mb_lock);
 
-	/* Format and send the read command */
-	control = FIELD_PREP(CTRL_EOM, 1) |
-		  FIELD_PREP(CTRL_SOM, 1) |
-		  FIELD_PREP(CTRL_RUN_BUSY, 1) |
-		  FIELD_PREP(CTRL_PACKET_SIZE, info->size);
-	writeq(control, priv->control_addr);
-
 	/* For reads, data sizes that are larger than the mailbox size are read in packets. */
 	total = 0;
 	loop = 0;
 	do {
-		void *buf = info->buffer + (SDSI_SIZE_MAILBOX * loop);
 		u32 packet_size;
 
 		/* Poll on ready bit */
@@ -195,6 +191,11 @@ static int sdsi_mbox_cmd_read(struct sdsi_priv *priv, struct sdsi_mbox_info *inf
 		if (ret)
 			break;
 
+		if (!packet_size) {
+			sdsi_complete_transaction(priv);
+			break;
+		}
+
 		/* Only the last packet can be less than the mailbox size. */
 		if (!eom && packet_size != SDSI_SIZE_MAILBOX) {
 			dev_err(dev, "Invalid packet size\n");
@@ -208,9 +209,13 @@ static int sdsi_mbox_cmd_read(struct sdsi_priv *priv, struct sdsi_mbox_info *inf
 			break;
 		}
 
-		sdsi_memcpy64_fromio(buf, priv->mbox_addr, round_up(packet_size, SDSI_SIZE_CMD));
+		if (info->buffer) {
+			void *buf = info->buffer + array_size(SDSI_SIZE_MAILBOX, loop);
 
-		total += packet_size;
+			sdsi_memcpy64_fromio(buf, priv->mbox_addr,
+					     round_up(packet_size, SDSI_SIZE_CMD));
+			total += packet_size;
+		}
 
 		sdsi_complete_transaction(priv);
 	} while (!eom && ++loop < MBOX_MAX_PACKETS);
@@ -230,16 +235,34 @@ static int sdsi_mbox_cmd_read(struct sdsi_priv *priv, struct sdsi_mbox_info *inf
 		dev_warn(dev, "Read count %u differs from expected count %u\n",
 			 total, message_size);
 
-	*data_size = total;
+	if (data_size)
+		*data_size = total;
 
 	return 0;
 }
 
-static int sdsi_mbox_cmd_write(struct sdsi_priv *priv, struct sdsi_mbox_info *info)
+static int sdsi_mbox_cmd_read(struct sdsi_priv *priv, struct sdsi_mbox_info *info,
+			      size_t *data_size)
+{
+	u64 control;
+
+	lockdep_assert_held(&priv->mb_lock);
+
+	/* Format and send the read command */
+	control = FIELD_PREP(CTRL_EOM, 1) |
+		  FIELD_PREP(CTRL_SOM, 1) |
+		  FIELD_PREP(CTRL_RUN_BUSY, 1) |
+		  FIELD_PREP(CTRL_PACKET_SIZE, info->size) |
+		  info->control_flags;
+	writeq(control, priv->control_addr);
+
+	return sdsi_mbox_poll(priv, info, data_size);
+}
+
+static int sdsi_mbox_cmd_write(struct sdsi_priv *priv, struct sdsi_mbox_info *info,
+			       size_t *data_size)
 {
 	u64 control;
-	u32 status;
-	int ret;
 
 	lockdep_assert_held(&priv->mb_lock);
 
@@ -252,23 +275,11 @@ static int sdsi_mbox_cmd_write(struct sdsi_priv *priv, struct sdsi_mbox_info *in
 		  FIELD_PREP(CTRL_SOM, 1) |
 		  FIELD_PREP(CTRL_RUN_BUSY, 1) |
 		  FIELD_PREP(CTRL_READ_WRITE, 1) |
+		  FIELD_PREP(CTRL_MSG_SIZE, info->size) |
 		  FIELD_PREP(CTRL_PACKET_SIZE, info->size);
 	writeq(control, priv->control_addr);
 
-	/* Poll on ready bit */
-	ret = readq_poll_timeout(priv->control_addr, control, control & CTRL_READY,
-				 MBOX_POLLING_PERIOD_US, MBOX_TIMEOUT_US);
-
-	if (ret)
-		goto release_mbox;
-
-	status = FIELD_GET(CTRL_STATUS, control);
-	ret = sdsi_status_to_errno(status);
-
-release_mbox:
-	sdsi_complete_transaction(priv);
-
-	return ret;
+	return sdsi_mbox_poll(priv, info, data_size);
 }
 
 static int sdsi_mbox_acquire(struct sdsi_priv *priv, struct sdsi_mbox_info *info)
@@ -312,7 +323,8 @@ static int sdsi_mbox_acquire(struct sdsi_priv *priv, struct sdsi_mbox_info *info
 	return ret;
 }
 
-static int sdsi_mbox_write(struct sdsi_priv *priv, struct sdsi_mbox_info *info)
+static int sdsi_mbox_write(struct sdsi_priv *priv, struct sdsi_mbox_info *info,
+			   size_t *data_size)
 {
 	int ret;
 
@@ -322,7 +334,7 @@ static int sdsi_mbox_write(struct sdsi_priv *priv, struct sdsi_mbox_info *info)
 	if (ret)
 		return ret;
 
-	return sdsi_mbox_cmd_write(priv, info);
+	return sdsi_mbox_cmd_write(priv, info, data_size);
 }
 
 static int sdsi_mbox_read(struct sdsi_priv *priv, struct sdsi_mbox_info *info, size_t *data_size)
@@ -338,15 +350,24 @@ static int sdsi_mbox_read(struct sdsi_priv *priv, struct sdsi_mbox_info *info, s
 	return sdsi_mbox_cmd_read(priv, info, data_size);
 }
 
+static bool sdsi_ib_locked(struct sdsi_priv *priv)
+{
+	return !!FIELD_GET(CTRL_INBAND_LOCK, readq(priv->control_addr));
+}
+
 static ssize_t sdsi_provision(struct sdsi_priv *priv, char *buf, size_t count,
 			      enum sdsi_command command)
 {
-	struct sdsi_mbox_info info;
+	struct sdsi_mbox_info info = {};
 	int ret;
 
 	if (count > (SDSI_SIZE_WRITE_MSG - SDSI_SIZE_CMD))
 		return -EOVERFLOW;
 
+	/* Make sure In-band lock is not set */
+	if (sdsi_ib_locked(priv))
+		return -EPERM;
+
 	/* Qword aligned message + command qword */
 	info.size = round_up(count, SDSI_SIZE_CMD) + SDSI_SIZE_CMD;
 
@@ -363,7 +384,9 @@ static ssize_t sdsi_provision(struct sdsi_priv *priv, char *buf, size_t count,
 	ret = mutex_lock_interruptible(&priv->mb_lock);
 	if (ret)
 		goto free_payload;
-	ret = sdsi_mbox_write(priv, &info);
+
+	ret = sdsi_mbox_write(priv, &info, NULL);
+
 	mutex_unlock(&priv->mb_lock);
 
 free_payload:
@@ -404,10 +427,10 @@ static ssize_t provision_cap_write(struct file *filp, struct kobject *kobj,
 static BIN_ATTR_WO(provision_cap, SDSI_SIZE_WRITE_MSG);
 
 static ssize_t
-certificate_read(u64 command, struct sdsi_priv *priv, char *buf, loff_t off,
-		 size_t count)
+certificate_read(u64 command, u64 control_flags, struct sdsi_priv *priv,
+		 char *buf, loff_t off, size_t count)
 {
-	struct sdsi_mbox_info info;
+	struct sdsi_mbox_info info = {};
 	size_t size;
 	int ret;
 
@@ -421,6 +444,7 @@ certificate_read(u64 command, struct sdsi_priv *priv, char *buf, loff_t off,
 
 	info.payload = &command;
 	info.size = sizeof(command);
+	info.control_flags = control_flags;
 
 	ret = mutex_lock_interruptible(&priv->mb_lock);
 	if (ret)
@@ -452,7 +476,7 @@ state_certificate_read(struct file *filp, struct kobject *kobj,
 	struct device *dev = kobj_to_dev(kobj);
 	struct sdsi_priv *priv = dev_get_drvdata(dev);
 
-	return certificate_read(SDSI_CMD_READ_STATE, priv, buf, off, count);
+	return certificate_read(SDSI_CMD_READ_STATE, 0, priv, buf, off, count);
 }
 static BIN_ATTR_ADMIN_RO(state_certificate, SDSI_SIZE_READ_MSG);
 
@@ -464,10 +488,23 @@ meter_certificate_read(struct file *filp, struct kobject *kobj,
 	struct device *dev = kobj_to_dev(kobj);
 	struct sdsi_priv *priv = dev_get_drvdata(dev);
 
-	return certificate_read(SDSI_CMD_READ_METER, priv, buf, off, count);
+	return certificate_read(SDSI_CMD_READ_METER, 0, priv, buf, off, count);
 }
 static BIN_ATTR_ADMIN_RO(meter_certificate, SDSI_SIZE_READ_MSG);
 
+static ssize_t
+meter_current_read(struct file *filp, struct kobject *kobj,
+		   struct bin_attribute *attr, char *buf, loff_t off,
+		   size_t count)
+{
+	struct device *dev = kobj_to_dev(kobj);
+	struct sdsi_priv *priv = dev_get_drvdata(dev);
+
+	return certificate_read(SDSI_CMD_READ_METER, CTRL_METER_ENABLE_DRAM,
+				priv, buf, off, count);
+}
+static BIN_ATTR_ADMIN_RO(meter_current, SDSI_SIZE_READ_MSG);
+
 static ssize_t registers_read(struct file *filp, struct kobject *kobj,
 			      struct bin_attribute *attr, char *buf, loff_t off,
 			      size_t count)
@@ -498,6 +535,7 @@ static struct bin_attribute *sdsi_bin_attrs[] = {
 	&bin_attr_registers,
 	&bin_attr_state_certificate,
 	&bin_attr_meter_certificate,
+	&bin_attr_meter_current,
 	&bin_attr_provision_akc,
 	&bin_attr_provision_cap,
 	NULL
@@ -517,7 +555,7 @@ sdsi_battr_is_visible(struct kobject *kobj, struct bin_attribute *attr, int n)
 	if (!(priv->features & SDSI_FEATURE_SDSI))
 		return 0;
 
-	if (attr == &bin_attr_meter_certificate)
+	if (attr == &bin_attr_meter_certificate || attr == &bin_attr_meter_current)
 		return (priv->features & SDSI_FEATURE_METERING) ?
 				attr->attr.mode : 0;
 
diff --git a/drivers/platform/x86/intel/speed_select_if/isst_if_common.c b/drivers/platform/x86/intel/speed_select_if/isst_if_common.c
index 1accdaaf282c53..713c0d1fa85fb9 100644
--- a/drivers/platform/x86/intel/speed_select_if/isst_if_common.c
+++ b/drivers/platform/x86/intel/speed_select_if/isst_if_common.c
@@ -839,4 +839,5 @@ void isst_if_cdev_unregister(int device_type)
 }
 EXPORT_SYMBOL_GPL(isst_if_cdev_unregister);
 
+MODULE_DESCRIPTION("ISST common interface module");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c b/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c
index 1d918000d72b4b..7bac7841ff0aba 100644
--- a/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c
+++ b/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c
@@ -17,12 +17,15 @@
  * the hardware mapping.
  */
 
+#define dev_fmt(fmt) "tpmi_sst: " fmt
+
 #include <linux/auxiliary_bus.h>
 #include <linux/delay.h>
 #include <linux/intel_tpmi.h>
 #include <linux/fs.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
+#include <linux/minmax.h>
 #include <linux/module.h>
 #include <uapi/linux/isst_if.h>
 
@@ -263,20 +266,33 @@ struct tpmi_per_power_domain_info {
 	bool write_blocked;
 };
 
+/* Supported maximum partitions */
+#define SST_MAX_PARTITIONS	2
+
 /**
  * struct tpmi_sst_struct -	Store sst info for a package
  * @package_id:			Package id for this aux device instance
  * @number_of_power_domains:	Number of power_domains pointed by power_domain_info pointer
  * @power_domain_info:		Pointer to power domains information
+ * @cdie_mask:			Mask of compute dies present in a partition from hardware.
+ *				This mask is not present in the version 1 information header.
+ * @io_dies:			Number of IO dies in a partition. This will be 0 for TPMI
+ *				version 1 information header.
+ * @partition_mask:		Mask of all partitions.
+ * @partition_mask_current:	Current partition mask as some may have been unbound.
  *
  * This structure is used store full SST information for a package.
- * Each package has a unique OOB PCI device, which enumerates TPMI.
- * Each Package will have multiple power_domains.
+ * Each package has one or multiple OOB PCI devices. Each package can contain multiple
+ * power domains.
  */
 struct tpmi_sst_struct {
 	int package_id;
-	int number_of_power_domains;
-	struct tpmi_per_power_domain_info *power_domain_info;
+	struct tpmi_per_power_domain_info *power_domain_info[SST_MAX_PARTITIONS];
+	u16 cdie_mask[SST_MAX_PARTITIONS];
+	u8 number_of_power_domains[SST_MAX_PARTITIONS];
+	u8 io_dies[SST_MAX_PARTITIONS];
+	u8 partition_mask;
+	u8 partition_mask_current;
 };
 
 /**
@@ -313,12 +329,11 @@ static int sst_add_perf_profiles(struct auxiliary_device *auxdev,
 				 struct tpmi_per_power_domain_info *pd_info,
 				 int levels)
 {
+	struct device *dev = &auxdev->dev;
 	u64 perf_level_offsets;
 	int i;
 
-	pd_info->perf_levels = devm_kcalloc(&auxdev->dev, levels,
-					    sizeof(struct perf_level),
-					    GFP_KERNEL);
+	pd_info->perf_levels = devm_kcalloc(dev, levels, sizeof(struct perf_level), GFP_KERNEL);
 	if (!pd_info->perf_levels)
 		return 0;
 
@@ -349,6 +364,7 @@ static int sst_add_perf_profiles(struct auxiliary_device *auxdev,
 
 static int sst_main(struct auxiliary_device *auxdev, struct tpmi_per_power_domain_info *pd_info)
 {
+	struct device *dev = &auxdev->dev;
 	int i, mask, levels;
 
 	*((u64 *)&pd_info->sst_header) = readq(pd_info->sst_base);
@@ -359,13 +375,13 @@ static int sst_main(struct auxiliary_device *auxdev, struct tpmi_per_power_domai
 		return -ENODEV;
 
 	if (TPMI_MAJOR_VERSION(pd_info->sst_header.interface_version) != ISST_MAJOR_VERSION) {
-		dev_err(&auxdev->dev, "SST: Unsupported major version:%lx\n",
+		dev_err(dev, "SST: Unsupported major version:%lx\n",
 			TPMI_MAJOR_VERSION(pd_info->sst_header.interface_version));
 		return -ENODEV;
 	}
 
 	if (TPMI_MINOR_VERSION(pd_info->sst_header.interface_version) != ISST_MINOR_VERSION)
-		dev_info(&auxdev->dev, "SST: Ignore: Unsupported minor version:%lx\n",
+		dev_info(dev, "SST: Ignore: Unsupported minor version:%lx\n",
 			 TPMI_MINOR_VERSION(pd_info->sst_header.interface_version));
 
 	/* Read SST CP Header */
@@ -387,6 +403,126 @@ static int sst_main(struct auxiliary_device *auxdev, struct tpmi_per_power_domai
 	return 0;
 }
 
+static u8 isst_instance_count(struct tpmi_sst_struct *sst_inst)
+{
+	u8 i, max_part, count = 0;
+
+	/* Partition mask starts from bit 0 and contains 1s only */
+	max_part = hweight8(sst_inst->partition_mask);
+	for (i = 0; i < max_part; i++)
+		count += sst_inst->number_of_power_domains[i];
+
+	return count;
+}
+
+/**
+ * map_cdies() - Map user domain ID to compute domain ID
+ * @sst_inst: TPMI Instance
+ * @id: User domain ID
+ * @partition: Resolved partition
+ *
+ * Helper function to map_partition_power_domain_id() to resolve compute
+ * domain ID and partition. Use hardware provided cdie_mask for a partition
+ * as is to resolve a compute domain ID.
+ *
+ * Return: %-EINVAL on error, otherwise mapped domain ID >= 0.
+ */
+static int map_cdies(struct tpmi_sst_struct *sst_inst, u8 id, u8 *partition)
+{
+	u8 i, max_part;
+
+	max_part = hweight8(sst_inst->partition_mask);
+	for (i = 0; i < max_part; i++) {
+		if (!(sst_inst->cdie_mask[i] & BIT(id)))
+			continue;
+
+		*partition = i;
+		return id - ffs(sst_inst->cdie_mask[i]) + 1;
+	}
+
+	return -EINVAL;
+}
+
+/**
+ * map_partition_power_domain_id() - Map user domain ID to partition domain ID
+ * @sst_inst: TPMI Instance
+ * @id: User domain ID
+ * @partition: Resolved partition
+ *
+ * In a partitioned system a CPU package has two separate MMIO ranges (Under
+ * two PCI devices). But the CPU package compute die/power domain IDs are
+ * unique in a package. User space can get compute die/power domain ID from
+ * CPUID and MSR 0x54 for a CPU. So, those IDs need to be preserved even if
+ * they are present in two different partitions with its own order.
+ *
+ * For example for command ISST_IF_COUNT_TPMI_INSTANCES, the valid_mask
+ * is 111111b for a 4 compute and 2 IO dies system. This is presented as
+ * provided by the hardware in a non-partitioned system with the following
+ * order:
+ *	I1-I0-C3-C2-C1-C0
+ * Here: "C": for compute and "I" for IO die.
+ * Compute dies are always present first in TPMI instances, as they have
+ * to map to the real power domain/die ID of a system. In a non-partitioned
+ * system there is no way to identify compute and IO die boundaries from
+ * this driver without reading each CPU's mapping.
+ *
+ * The same order needs to be preserved, even if those compute dies are
+ * distributed among multiple partitions. For example:
+ * Partition 1 can contain: I1-C1-C0
+ * Partition 2 can contain: I2-C3-C2
+ *
+ * This will require a conversion of user space IDs to the actual index into
+ * array of stored power domains for each partition. For the above example
+ * this function will return partition and index as follows:
+ *
+ * =============	=========	=====	========
+ * User space ID	Partition	Index	Die type
+ * =============	=========	=====	========
+ * 0			0		0	Compute
+ * 1			0		1	Compute
+ * 2			1		0	Compute
+ * 3			1		1	Compute
+ * 4			0		2	IO
+ * 5			1		2	IO
+ * =============	=========	=====	========
+ *
+ * Return: %-EINVAL on error, otherwise mapped domain ID >= 0.
+ */
+static int map_partition_power_domain_id(struct tpmi_sst_struct *sst_inst, u8 id, u8 *partition)
+{
+	u8 i, io_start_id, max_part;
+
+	*partition = 0;
+
+	/* If any PCI device for partition is unbound, treat this as failure */
+	if (sst_inst->partition_mask != sst_inst->partition_mask_current)
+		return -EINVAL;
+
+	max_part = hweight8(sst_inst->partition_mask);
+
+	/* IO Index begin here */
+	io_start_id = fls(sst_inst->cdie_mask[max_part - 1]);
+
+	if (id < io_start_id)
+		return map_cdies(sst_inst, id, partition);
+
+	for (i = 0; i < max_part; i++) {
+		u8 io_id;
+
+		io_id = id - io_start_id;
+		if (io_id < sst_inst->io_dies[i]) {
+			u8 cdie_range;
+
+			cdie_range = fls(sst_inst->cdie_mask[i]) - ffs(sst_inst->cdie_mask[i]) + 1;
+			*partition = i;
+			return cdie_range + io_id;
+		}
+		io_start_id += sst_inst->io_dies[i];
+	}
+
+	return -EINVAL;
+}
+
 /*
  * Map a package and power_domain id to SST information structure unique for a power_domain.
  * The caller should call under isst_tpmi_dev_lock.
@@ -395,19 +531,20 @@ static struct tpmi_per_power_domain_info *get_instance(int pkg_id, int power_dom
 {
 	struct tpmi_per_power_domain_info *power_domain_info;
 	struct tpmi_sst_struct *sst_inst;
+	u8 part;
 
-	if (pkg_id < 0 || pkg_id > isst_common.max_index ||
-	    pkg_id >= topology_max_packages())
+	if (!in_range(pkg_id, 0, topology_max_packages()) || pkg_id > isst_common.max_index)
 		return NULL;
 
 	sst_inst = isst_common.sst_inst[pkg_id];
 	if (!sst_inst)
 		return NULL;
 
-	if (power_domain_id < 0 || power_domain_id >= sst_inst->number_of_power_domains)
+	power_domain_id = map_partition_power_domain_id(sst_inst, power_domain_id, &part);
+	if (power_domain_id < 0)
 		return NULL;
 
-	power_domain_info = &sst_inst->power_domain_info[power_domain_id];
+	power_domain_info = &sst_inst->power_domain_info[part][power_domain_id];
 
 	if (power_domain_info && !power_domain_info->sst_base)
 		return NULL;
@@ -579,6 +716,7 @@ static long isst_if_clos_assoc(void __user *argp)
 		struct tpmi_sst_struct *sst_inst;
 		int offset, shift, cpu;
 		u64 val, mask, clos;
+		u8 part;
 
 		if (copy_from_user(&clos_assoc, ptr, sizeof(clos_assoc)))
 			return -EFAULT;
@@ -602,10 +740,11 @@ static long isst_if_clos_assoc(void __user *argp)
 
 		sst_inst = isst_common.sst_inst[pkg_id];
 
-		if (clos_assoc.power_domain_id > sst_inst->number_of_power_domains)
+		punit_id = map_partition_power_domain_id(sst_inst, punit_id, &part);
+		if (punit_id < 0)
 			return -EINVAL;
 
-		power_domain_info = &sst_inst->power_domain_info[punit_id];
+		power_domain_info = &sst_inst->power_domain_info[part][punit_id];
 
 		if (assoc_cmds.get_set && power_domain_info->write_blocked)
 			return -EPERM;
@@ -708,6 +847,8 @@ static int isst_if_get_perf_level(void __user *argp)
 {
 	struct isst_perf_level_info perf_level;
 	struct tpmi_per_power_domain_info *power_domain_info;
+	unsigned long level_mask;
+	u8 level, support;
 
 	if (copy_from_user(&perf_level, argp, sizeof(perf_level)))
 		return -EFAULT;
@@ -727,12 +868,34 @@ static int isst_if_get_perf_level(void __user *argp)
 		      SST_PP_FEATURE_STATE_START, SST_PP_FEATURE_STATE_WIDTH, SST_MUL_FACTOR_NONE)
 	perf_level.enabled = !!(power_domain_info->sst_header.cap_mask & BIT(1));
 
-	_read_bf_level_info("bf_support", perf_level.sst_bf_support, 0, 0,
-			    SST_BF_FEATURE_SUPPORTED_START, SST_BF_FEATURE_SUPPORTED_WIDTH,
-			    SST_MUL_FACTOR_NONE);
-	_read_tf_level_info("tf_support", perf_level.sst_tf_support, 0, 0,
-			    SST_TF_FEATURE_SUPPORTED_START, SST_TF_FEATURE_SUPPORTED_WIDTH,
-			    SST_MUL_FACTOR_NONE);
+	level_mask = perf_level.level_mask;
+	perf_level.sst_bf_support = 0;
+	for_each_set_bit(level, &level_mask, BITS_PER_BYTE) {
+		/*
+		 * Read BF support for a level. Read output is updated
+		 * to "support" variable by the below macro.
+		 */
+		_read_bf_level_info("bf_support", support, level, 0, SST_BF_FEATURE_SUPPORTED_START,
+				    SST_BF_FEATURE_SUPPORTED_WIDTH, SST_MUL_FACTOR_NONE);
+
+		/* If supported set the bit for the level */
+		if (support)
+			perf_level.sst_bf_support |= BIT(level);
+	}
+
+	perf_level.sst_tf_support = 0;
+	for_each_set_bit(level, &level_mask, BITS_PER_BYTE) {
+		/*
+		 * Read TF support for a level. Read output is updated
+		 * to "support" variable by the below macro.
+		 */
+		_read_tf_level_info("tf_support", support, level, 0, SST_TF_FEATURE_SUPPORTED_START,
+				    SST_TF_FEATURE_SUPPORTED_WIDTH, SST_MUL_FACTOR_NONE);
+
+		/* If supported set the bit for the level */
+		if (support)
+			perf_level.sst_tf_support |= BIT(level);
+	}
 
 	if (copy_to_user(argp, &perf_level, sizeof(perf_level)))
 		return -EFAULT;
@@ -1134,18 +1297,28 @@ static int isst_if_get_tpmi_instance_count(void __user *argp)
 	if (tpmi_inst.socket_id >= topology_max_packages())
 		return -EINVAL;
 
-	tpmi_inst.count = isst_common.sst_inst[tpmi_inst.socket_id]->number_of_power_domains;
-
 	sst_inst = isst_common.sst_inst[tpmi_inst.socket_id];
+
+	tpmi_inst.count = isst_instance_count(sst_inst);
+
 	tpmi_inst.valid_mask = 0;
-	for (i = 0; i < sst_inst->number_of_power_domains; ++i) {
+	for (i = 0; i < tpmi_inst.count; i++) {
 		struct tpmi_per_power_domain_info *pd_info;
+		u8 part;
+		int pd;
 
-		pd_info = &sst_inst->power_domain_info[i];
+		pd = map_partition_power_domain_id(sst_inst, i, &part);
+		if (pd < 0)
+			continue;
+
+		pd_info = &sst_inst->power_domain_info[part][pd];
 		if (pd_info->sst_base)
 			tpmi_inst.valid_mask |= BIT(i);
 	}
 
+	if (!tpmi_inst.valid_mask)
+		tpmi_inst.count = 0;
+
 	if (copy_to_user(argp, &tpmi_inst, sizeof(tpmi_inst)))
 		return -EFAULT;
 
@@ -1271,102 +1444,175 @@ static long isst_if_def_ioctl(struct file *file, unsigned int cmd,
 
 int tpmi_sst_dev_add(struct auxiliary_device *auxdev)
 {
+	struct tpmi_per_power_domain_info *pd_info;
 	bool read_blocked = 0, write_blocked = 0;
 	struct intel_tpmi_plat_info *plat_info;
+	struct device *dev = &auxdev->dev;
 	struct tpmi_sst_struct *tpmi_sst;
-	int i, ret, pkg = 0, inst = 0;
-	int num_resources;
+	u8 i, num_resources, io_die_cnt;
+	int ret, pkg = 0, inst = 0;
+	bool first_enum = false;
+	u16 cdie_mask;
+	u8 partition;
 
 	ret = tpmi_get_feature_status(auxdev, TPMI_ID_SST, &read_blocked, &write_blocked);
 	if (ret)
-		dev_info(&auxdev->dev, "Can't read feature status: ignoring read/write blocked status\n");
+		dev_info(dev, "Can't read feature status: ignoring read/write blocked status\n");
 
 	if (read_blocked) {
-		dev_info(&auxdev->dev, "Firmware has blocked reads, exiting\n");
+		dev_info(dev, "Firmware has blocked reads, exiting\n");
 		return -ENODEV;
 	}
 
 	plat_info = tpmi_get_platform_data(auxdev);
 	if (!plat_info) {
-		dev_err(&auxdev->dev, "No platform info\n");
+		dev_err(dev, "No platform info\n");
 		return -EINVAL;
 	}
 
 	pkg = plat_info->package_id;
 	if (pkg >= topology_max_packages()) {
-		dev_err(&auxdev->dev, "Invalid package id :%x\n", pkg);
+		dev_err(dev, "Invalid package id :%x\n", pkg);
 		return -EINVAL;
 	}
 
-	if (isst_common.sst_inst[pkg])
-		return -EEXIST;
+	partition = plat_info->partition;
+	if (partition >= SST_MAX_PARTITIONS) {
+		dev_err(&auxdev->dev, "Invalid partition :%x\n", partition);
+		return -EINVAL;
+	}
 
 	num_resources = tpmi_get_resource_count(auxdev);
 
 	if (!num_resources)
 		return -EINVAL;
 
-	tpmi_sst = devm_kzalloc(&auxdev->dev, sizeof(*tpmi_sst), GFP_KERNEL);
-	if (!tpmi_sst)
-		return -ENOMEM;
+	mutex_lock(&isst_tpmi_dev_lock);
+
+	if (isst_common.sst_inst[pkg]) {
+		tpmi_sst = isst_common.sst_inst[pkg];
+	} else {
+		/*
+		 * tpmi_sst instance is for a package. So needs to be
+		 * allocated only once for both partitions. We can't use
+		 * devm_* allocation here as each partition is a
+		 * different device, which can be unbound.
+		 */
+		tpmi_sst = kzalloc(sizeof(*tpmi_sst), GFP_KERNEL);
+		if (!tpmi_sst) {
+			ret = -ENOMEM;
+			goto unlock_exit;
+		}
+		first_enum = true;
+	}
 
-	tpmi_sst->power_domain_info = devm_kcalloc(&auxdev->dev, num_resources,
-						   sizeof(*tpmi_sst->power_domain_info),
-						   GFP_KERNEL);
-	if (!tpmi_sst->power_domain_info)
-		return -ENOMEM;
+	ret = 0;
 
-	tpmi_sst->number_of_power_domains = num_resources;
+	pd_info = devm_kcalloc(dev, num_resources, sizeof(*pd_info), GFP_KERNEL);
+	if (!pd_info) {
+		ret = -ENOMEM;
+		goto unlock_free;
+	}
+
+	/* Get the IO die count, if cdie_mask is present */
+	if (plat_info->cdie_mask) {
+		u8 cdie_range;
+
+		cdie_mask = plat_info->cdie_mask;
+		cdie_range = fls(cdie_mask) - ffs(cdie_mask) + 1;
+		io_die_cnt = num_resources - cdie_range;
+	} else {
+		/*
+		 * This is a synthetic mask, careful when assuming that
+		 * they are compute dies only.
+		 */
+		cdie_mask = (1 << num_resources) - 1;
+		io_die_cnt = 0;
+	}
 
 	for (i = 0; i < num_resources; ++i) {
 		struct resource *res;
 
 		res = tpmi_get_resource_at_index(auxdev, i);
 		if (!res) {
-			tpmi_sst->power_domain_info[i].sst_base = NULL;
+			pd_info[i].sst_base = NULL;
 			continue;
 		}
 
-		tpmi_sst->power_domain_info[i].package_id = pkg;
-		tpmi_sst->power_domain_info[i].power_domain_id = i;
-		tpmi_sst->power_domain_info[i].auxdev = auxdev;
-		tpmi_sst->power_domain_info[i].write_blocked = write_blocked;
-		tpmi_sst->power_domain_info[i].sst_base = devm_ioremap_resource(&auxdev->dev, res);
-		if (IS_ERR(tpmi_sst->power_domain_info[i].sst_base))
-			return PTR_ERR(tpmi_sst->power_domain_info[i].sst_base);
+		pd_info[i].package_id = pkg;
+		pd_info[i].power_domain_id = i;
+		pd_info[i].auxdev = auxdev;
+		pd_info[i].write_blocked = write_blocked;
+		pd_info[i].sst_base = devm_ioremap_resource(dev, res);
+		if (IS_ERR(pd_info[i].sst_base)) {
+			ret = PTR_ERR(pd_info[i].sst_base);
+			goto unlock_free;
+		}
 
-		ret = sst_main(auxdev, &tpmi_sst->power_domain_info[i]);
+		ret = sst_main(auxdev, &pd_info[i]);
 		if (ret) {
-			devm_iounmap(&auxdev->dev, tpmi_sst->power_domain_info[i].sst_base);
-			tpmi_sst->power_domain_info[i].sst_base =  NULL;
+			/*
+			 * This entry is not valid, hardware can partially
+			 * populate dies. In this case MMIO will have 0xFFs.
+			 * Also possible some pre-production hardware has
+			 * invalid data. But don't fail and continue to use
+			 * other dies with valid data.
+			 */
+			devm_iounmap(dev, pd_info[i].sst_base);
+			pd_info[i].sst_base = NULL;
 			continue;
 		}
 
 		++inst;
 	}
 
-	if (!inst)
-		return -ENODEV;
+	if (!inst) {
+		ret = -ENODEV;
+		goto unlock_free;
+	}
 
 	tpmi_sst->package_id = pkg;
+
+	tpmi_sst->power_domain_info[partition] = pd_info;
+	tpmi_sst->number_of_power_domains[partition] = num_resources;
+	tpmi_sst->cdie_mask[partition] = cdie_mask;
+	tpmi_sst->io_dies[partition] = io_die_cnt;
+	tpmi_sst->partition_mask |= BIT(partition);
+	tpmi_sst->partition_mask_current |= BIT(partition);
+
 	auxiliary_set_drvdata(auxdev, tpmi_sst);
 
-	mutex_lock(&isst_tpmi_dev_lock);
 	if (isst_common.max_index < pkg)
 		isst_common.max_index = pkg;
 	isst_common.sst_inst[pkg] = tpmi_sst;
+
+unlock_free:
+	if (ret && first_enum)
+		kfree(tpmi_sst);
+unlock_exit:
 	mutex_unlock(&isst_tpmi_dev_lock);
 
-	return 0;
+	return ret;
 }
 EXPORT_SYMBOL_NS_GPL(tpmi_sst_dev_add, INTEL_TPMI_SST);
 
 void tpmi_sst_dev_remove(struct auxiliary_device *auxdev)
 {
 	struct tpmi_sst_struct *tpmi_sst = auxiliary_get_drvdata(auxdev);
+	struct intel_tpmi_plat_info *plat_info;
+
+	plat_info = tpmi_get_platform_data(auxdev);
+	if (!plat_info)
+		return;
 
 	mutex_lock(&isst_tpmi_dev_lock);
-	isst_common.sst_inst[tpmi_sst->package_id] = NULL;
+	tpmi_sst->power_domain_info[plat_info->partition] = NULL;
+	tpmi_sst->partition_mask_current &= ~BIT(plat_info->partition);
+	/* Free the package instance when the all partitions are removed */
+	if (!tpmi_sst->partition_mask_current) {
+		kfree(tpmi_sst);
+		isst_common.sst_inst[tpmi_sst->package_id] = NULL;
+	}
 	mutex_unlock(&isst_tpmi_dev_lock);
 }
 EXPORT_SYMBOL_NS_GPL(tpmi_sst_dev_remove, INTEL_TPMI_SST);
@@ -1374,9 +1620,16 @@ EXPORT_SYMBOL_NS_GPL(tpmi_sst_dev_remove, INTEL_TPMI_SST);
 void tpmi_sst_dev_suspend(struct auxiliary_device *auxdev)
 {
 	struct tpmi_sst_struct *tpmi_sst = auxiliary_get_drvdata(auxdev);
-	struct tpmi_per_power_domain_info *power_domain_info = tpmi_sst->power_domain_info;
+	struct tpmi_per_power_domain_info *power_domain_info;
+	struct intel_tpmi_plat_info *plat_info;
 	void __iomem *cp_base;
 
+	plat_info = tpmi_get_platform_data(auxdev);
+	if (!plat_info)
+		return;
+
+	power_domain_info = tpmi_sst->power_domain_info[plat_info->partition];
+
 	cp_base = power_domain_info->sst_base + power_domain_info->sst_header.cp_offset;
 	power_domain_info->saved_sst_cp_control = readq(cp_base + SST_CP_CONTROL_OFFSET);
 
@@ -1395,9 +1648,16 @@ EXPORT_SYMBOL_NS_GPL(tpmi_sst_dev_suspend, INTEL_TPMI_SST);
 void tpmi_sst_dev_resume(struct auxiliary_device *auxdev)
 {
 	struct tpmi_sst_struct *tpmi_sst = auxiliary_get_drvdata(auxdev);
-	struct tpmi_per_power_domain_info *power_domain_info = tpmi_sst->power_domain_info;
+	struct tpmi_per_power_domain_info *power_domain_info;
+	struct intel_tpmi_plat_info *plat_info;
 	void __iomem *cp_base;
 
+	plat_info = tpmi_get_platform_data(auxdev);
+	if (!plat_info)
+		return;
+
+	power_domain_info = tpmi_sst->power_domain_info[plat_info->partition];
+
 	cp_base = power_domain_info->sst_base + power_domain_info->sst_header.cp_offset;
 	writeq(power_domain_info->saved_sst_cp_control, cp_base + SST_CP_CONTROL_OFFSET);
 
@@ -1412,7 +1672,7 @@ void tpmi_sst_dev_resume(struct auxiliary_device *auxdev)
 }
 EXPORT_SYMBOL_NS_GPL(tpmi_sst_dev_resume, INTEL_TPMI_SST);
 
-#define ISST_TPMI_API_VERSION	0x02
+#define ISST_TPMI_API_VERSION	0x03
 
 int tpmi_sst_init(void)
 {
@@ -1469,4 +1729,5 @@ EXPORT_SYMBOL_NS_GPL(tpmi_sst_exit, INTEL_TPMI_SST);
 MODULE_IMPORT_NS(INTEL_TPMI);
 MODULE_IMPORT_NS(INTEL_TPMI_POWER_DOMAIN);
 
+MODULE_DESCRIPTION("ISST TPMI interface module");
 MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/intel/tpmi.c b/drivers/platform/x86/intel/tpmi.c
index 910df7c654f481..6c0cbccd80bbed 100644
--- a/drivers/platform/x86/intel/tpmi.c
+++ b/drivers/platform/x86/intel/tpmi.c
@@ -128,6 +128,9 @@ struct intel_tpmi_info {
  * @dev:	PCI device number
  * @bus:	PCI bus number
  * @pkg:	CPU Package id
+ * @segment:	PCI segment id
+ * @partition:	Package Partition id
+ * @cdie_mask:	Bitmap of compute dies in the current partition
  * @reserved:	Reserved for future use
  * @lock:	When set to 1 the register is locked and becomes read-only
  *		until next reset. Not for use by the OS driver.
@@ -139,7 +142,10 @@ struct tpmi_info_header {
 	u64 dev:5;
 	u64 bus:8;
 	u64 pkg:8;
-	u64 reserved:39;
+	u64 segment:8;
+	u64 partition:2;
+	u64 cdie_mask:16;
+	u64 reserved:13;
 	u64 lock:1;
 } __packed;
 
@@ -666,28 +672,44 @@ static int tpmi_create_devices(struct intel_tpmi_info *tpmi_info)
 }
 
 #define TPMI_INFO_BUS_INFO_OFFSET	0x08
+#define TPMI_INFO_MAJOR_VERSION		0x00
+#define TPMI_INFO_MINOR_VERSION		0x02
 
 static int tpmi_process_info(struct intel_tpmi_info *tpmi_info,
 			     struct intel_tpmi_pm_feature *pfs)
 {
 	struct tpmi_info_header header;
 	void __iomem *info_mem;
+	u64 feature_header;
+	int ret = 0;
 
-	info_mem = ioremap(pfs->vsec_offset + TPMI_INFO_BUS_INFO_OFFSET,
-			   pfs->pfs_header.entry_size * sizeof(u32) - TPMI_INFO_BUS_INFO_OFFSET);
+	info_mem = ioremap(pfs->vsec_offset, pfs->pfs_header.entry_size * sizeof(u32));
 	if (!info_mem)
 		return -ENOMEM;
 
-	memcpy_fromio(&header, info_mem, sizeof(header));
+	feature_header = readq(info_mem);
+	if (TPMI_MAJOR_VERSION(feature_header) != TPMI_INFO_MAJOR_VERSION) {
+		ret = -ENODEV;
+		goto error_info_header;
+	}
+
+	memcpy_fromio(&header, info_mem + TPMI_INFO_BUS_INFO_OFFSET, sizeof(header));
 
 	tpmi_info->plat_info.package_id = header.pkg;
 	tpmi_info->plat_info.bus_number = header.bus;
 	tpmi_info->plat_info.device_number = header.dev;
 	tpmi_info->plat_info.function_number = header.fn;
 
+	if (TPMI_MINOR_VERSION(feature_header) >= TPMI_INFO_MINOR_VERSION) {
+		tpmi_info->plat_info.cdie_mask = header.cdie_mask;
+		tpmi_info->plat_info.partition = header.partition;
+		tpmi_info->plat_info.segment = header.segment;
+	}
+
+error_info_header:
 	iounmap(info_mem);
 
-	return 0;
+	return ret;
 }
 
 static int tpmi_fetch_pfs_header(struct intel_tpmi_pm_feature *pfs, u64 start, int size)
@@ -763,8 +785,11 @@ static int intel_vsec_tpmi_init(struct auxiliary_device *auxdev)
 		 * when actual device nodes created outside this
 		 * loop via tpmi_create_devices().
 		 */
-		if (pfs->pfs_header.tpmi_id == TPMI_INFO_ID)
-			tpmi_process_info(tpmi_info, pfs);
+		if (pfs->pfs_header.tpmi_id == TPMI_INFO_ID) {
+			ret = tpmi_process_info(tpmi_info, pfs);
+			if (ret)
+				return ret;
+		}
 
 		if (pfs->pfs_header.tpmi_id == TPMI_CONTROL_ID)
 			tpmi_set_control_base(auxdev, tpmi_info, pfs);
diff --git a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-tpmi.c b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-tpmi.c
index ef730200a04bd9..bb8e72deb3542f 100644
--- a/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-tpmi.c
+++ b/drivers/platform/x86/intel/uncore-frequency/uncore-frequency-tpmi.c
@@ -240,6 +240,7 @@ static int uncore_probe(struct auxiliary_device *auxdev, const struct auxiliary_
 	bool read_blocked = 0, write_blocked = 0;
 	struct intel_tpmi_plat_info *plat_info;
 	struct tpmi_uncore_struct *tpmi_uncore;
+	bool uncore_sysfs_added = false;
 	int ret, i, pkg = 0;
 	int num_resources;
 
@@ -384,9 +385,15 @@ static int uncore_probe(struct auxiliary_device *auxdev, const struct auxiliary_
 			}
 			/* Point to next cluster offset */
 			cluster_offset >>= UNCORE_MAX_CLUSTER_PER_DOMAIN;
+			uncore_sysfs_added = true;
 		}
 	}
 
+	if (!uncore_sysfs_added) {
+		ret = -ENODEV;
+		goto remove_clusters;
+	}
+
 	auxiliary_set_drvdata(auxdev, tpmi_uncore);
 
 	tpmi_uncore->root_cluster.root_domain = true;
diff --git a/drivers/platform/x86/intel/vbtn.c b/drivers/platform/x86/intel/vbtn.c
index 79bb2c801daa97..84c1353eb12bf9 100644
--- a/drivers/platform/x86/intel/vbtn.c
+++ b/drivers/platform/x86/intel/vbtn.c
@@ -156,7 +156,8 @@ static void notify_handler(acpi_handle handle, u32 event, void *context)
 
 	if ((ke = sparse_keymap_entry_from_scancode(priv->buttons_dev, event))) {
 		if (!priv->has_buttons) {
-			dev_warn(&device->dev, "Warning: received a button event on a device without buttons, please report this.\n");
+			dev_warn(&device->dev, "Warning: received 0x%02x button event on a device without buttons, please report this.\n",
+				 event);
 			return;
 		}
 		input_dev = priv->buttons_dev;
diff --git a/drivers/platform/x86/lenovo-wmi-camera.c b/drivers/platform/x86/lenovo-wmi-camera.c
new file mode 100644
index 00000000000000..0c0bedaf740710
--- /dev/null
+++ b/drivers/platform/x86/lenovo-wmi-camera.c
@@ -0,0 +1,127 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Lenovo WMI Camera Button Driver
+ *
+ * Author: Ai Chao <aichao@kylinos.cn>
+ * Copyright (C) 2024 KylinSoft Corporation.
+ */
+
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/input.h>
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/wmi.h>
+
+#define WMI_LENOVO_CAMERABUTTON_EVENT_GUID "50C76F1F-D8E4-D895-0A3D-62F4EA400013"
+
+struct lenovo_wmi_priv {
+	struct input_dev *idev;
+	struct mutex notify_lock;	/* lenovo WMI camera button notify lock */
+};
+
+enum {
+	SW_CAMERA_OFF	= 0,
+	SW_CAMERA_ON	= 1,
+};
+
+static void lenovo_wmi_notify(struct wmi_device *wdev, union acpi_object *obj)
+{
+	struct lenovo_wmi_priv *priv = dev_get_drvdata(&wdev->dev);
+	unsigned int keycode;
+	u8 camera_mode;
+
+	if (obj->type != ACPI_TYPE_BUFFER) {
+		dev_err(&wdev->dev, "Bad response type %u\n", obj->type);
+		return;
+	}
+
+	if (obj->buffer.length != 1) {
+		dev_err(&wdev->dev, "Invalid buffer length %u\n", obj->buffer.length);
+		return;
+	}
+
+	/*
+	 * obj->buffer.pointer[0] is camera mode:
+	 *      0 camera close
+	 *      1 camera open
+	 */
+	camera_mode = obj->buffer.pointer[0];
+	if (camera_mode > SW_CAMERA_ON) {
+		dev_err(&wdev->dev, "Unknown camera mode %u\n", camera_mode);
+		return;
+	}
+
+	mutex_lock(&priv->notify_lock);
+
+	keycode = camera_mode == SW_CAMERA_ON ?
+		   KEY_CAMERA_ACCESS_ENABLE : KEY_CAMERA_ACCESS_DISABLE;
+	input_report_key(priv->idev, keycode, 1);
+	input_sync(priv->idev);
+	input_report_key(priv->idev, keycode, 0);
+	input_sync(priv->idev);
+
+	mutex_unlock(&priv->notify_lock);
+}
+
+static int lenovo_wmi_probe(struct wmi_device *wdev, const void *context)
+{
+	struct lenovo_wmi_priv *priv;
+	int ret;
+
+	priv = devm_kzalloc(&wdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	dev_set_drvdata(&wdev->dev, priv);
+
+	priv->idev = devm_input_allocate_device(&wdev->dev);
+	if (!priv->idev)
+		return -ENOMEM;
+
+	priv->idev->name = "Lenovo WMI Camera Button";
+	priv->idev->phys = "wmi/input0";
+	priv->idev->id.bustype = BUS_HOST;
+	priv->idev->dev.parent = &wdev->dev;
+	input_set_capability(priv->idev, EV_KEY, KEY_CAMERA_ACCESS_ENABLE);
+	input_set_capability(priv->idev, EV_KEY, KEY_CAMERA_ACCESS_DISABLE);
+
+	ret = input_register_device(priv->idev);
+	if (ret)
+		return ret;
+
+	mutex_init(&priv->notify_lock);
+
+	return 0;
+}
+
+static void lenovo_wmi_remove(struct wmi_device *wdev)
+{
+	struct lenovo_wmi_priv *priv = dev_get_drvdata(&wdev->dev);
+
+	mutex_destroy(&priv->notify_lock);
+}
+
+static const struct wmi_device_id lenovo_wmi_id_table[] = {
+	{ .guid_string = WMI_LENOVO_CAMERABUTTON_EVENT_GUID },
+	{  }
+};
+MODULE_DEVICE_TABLE(wmi, lenovo_wmi_id_table);
+
+static struct wmi_driver lenovo_wmi_driver = {
+	.driver = {
+		.name = "lenovo-wmi-camera",
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
+	},
+	.id_table = lenovo_wmi_id_table,
+	.no_singleton = true,
+	.probe = lenovo_wmi_probe,
+	.notify = lenovo_wmi_notify,
+	.remove = lenovo_wmi_remove,
+};
+module_wmi_driver(lenovo_wmi_driver);
+
+MODULE_AUTHOR("Ai Chao <aichao@kylinos.cn>");
+MODULE_DESCRIPTION("Lenovo WMI Camera Button Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c b/drivers/platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c
new file mode 100644
index 00000000000000..d525bdc8ca9b3f
--- /dev/null
+++ b/drivers/platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c
@@ -0,0 +1,338 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Support for the custom fast charging protocol found on the Lenovo Yoga
+ * Tablet 2 1380F / 1380L models.
+ *
+ * Copyright (C) 2024 Hans de Goede <hansg@kernel.org>
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/extcon.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/platform_device.h>
+#include <linux/serdev.h>
+#include <linux/time.h>
+#include <linux/types.h>
+#include <linux/workqueue.h>
+#include "serdev_helpers.h"
+
+#define YT2_1380_FC_PDEV_NAME		"lenovo-yoga-tab2-pro-1380-fastcharger"
+#define YT2_1380_FC_SERDEV_CTRL		"serial0"
+#define YT2_1380_FC_SERDEV_NAME		"serial0-0"
+#define YT2_1380_FC_EXTCON_NAME		"i2c-lc824206xa"
+
+#define YT2_1380_FC_MAX_TRIES		5
+#define YT2_1380_FC_PIN_SW_DELAY_US	(10 * USEC_PER_MSEC)
+#define YT2_1380_FC_UART_DRAIN_DELAY_US	(50 * USEC_PER_MSEC)
+#define YT2_1380_FC_VOLT_SW_DELAY_US	(1000 * USEC_PER_MSEC)
+
+struct yt2_1380_fc {
+	struct device *dev;
+	struct pinctrl *pinctrl;
+	struct pinctrl_state *gpio_state;
+	struct pinctrl_state *uart_state;
+	struct gpio_desc *uart3_txd;
+	struct gpio_desc *uart3_rxd;
+	struct extcon_dev *extcon;
+	struct notifier_block nb;
+	struct work_struct work;
+	bool fast_charging;
+};
+
+static int yt2_1380_fc_set_gpio_mode(struct yt2_1380_fc *fc, bool enable)
+{
+	struct pinctrl_state *state = enable ? fc->gpio_state : fc->uart_state;
+	int ret;
+
+	ret = pinctrl_select_state(fc->pinctrl, state);
+	if (ret) {
+		dev_err(fc->dev, "Error %d setting pinctrl state\n", ret);
+		return ret;
+	}
+
+	fsleep(YT2_1380_FC_PIN_SW_DELAY_US);
+	return 0;
+}
+
+static bool yt2_1380_fc_dedicated_charger_connected(struct yt2_1380_fc *fc)
+{
+	return extcon_get_state(fc->extcon, EXTCON_CHG_USB_DCP) > 0;
+}
+
+static bool yt2_1380_fc_fast_charger_connected(struct yt2_1380_fc *fc)
+{
+	return extcon_get_state(fc->extcon, EXTCON_CHG_USB_FAST) > 0;
+}
+
+static void yt2_1380_fc_worker(struct work_struct *work)
+{
+	struct yt2_1380_fc *fc = container_of(work, struct yt2_1380_fc, work);
+	int i, ret;
+
+	/* Do nothing if already fast charging */
+	if (yt2_1380_fc_fast_charger_connected(fc))
+		return;
+
+	for (i = 0; i < YT2_1380_FC_MAX_TRIES; i++) {
+		/* Set pins to UART mode (for charger disconnect and retries) */
+		ret = yt2_1380_fc_set_gpio_mode(fc, false);
+		if (ret)
+			return;
+
+		/* Only try 12V charging if a dedicated charger is detected */
+		if (!yt2_1380_fc_dedicated_charger_connected(fc))
+			return;
+
+		/* Send the command to switch to 12V charging */
+		ret = serdev_device_write_buf(to_serdev_device(fc->dev), "SC", strlen("SC"));
+		if (ret != strlen("SC")) {
+			dev_err(fc->dev, "Error %d writing to uart\n", ret);
+			return;
+		}
+
+		fsleep(YT2_1380_FC_UART_DRAIN_DELAY_US);
+
+		/* Re-check a charger is still connected */
+		if (!yt2_1380_fc_dedicated_charger_connected(fc))
+			return;
+
+		/*
+		 * Now switch the lines to GPIO (output, high). The charger
+		 * expects the lines being driven high after the command.
+		 * Presumably this is used to detect the tablet getting
+		 * unplugged (to switch back to 5V output on unplug).
+		 */
+		ret = yt2_1380_fc_set_gpio_mode(fc, true);
+		if (ret)
+			return;
+
+		fsleep(YT2_1380_FC_VOLT_SW_DELAY_US);
+
+		if (yt2_1380_fc_fast_charger_connected(fc))
+			return; /* Success */
+	}
+
+	dev_dbg(fc->dev, "Failed to switch to 12V charging (not the original charger?)\n");
+	/* Failed to enable 12V fast charging, reset pins to default UART mode */
+	yt2_1380_fc_set_gpio_mode(fc, false);
+}
+
+static int yt2_1380_fc_extcon_evt(struct notifier_block *nb,
+				  unsigned long event, void *param)
+{
+	struct yt2_1380_fc *fc = container_of(nb, struct yt2_1380_fc, nb);
+
+	schedule_work(&fc->work);
+	return NOTIFY_OK;
+}
+
+static size_t yt2_1380_fc_receive(struct serdev_device *serdev, const u8 *data, size_t len)
+{
+	/*
+	 * Since the USB data lines are shorted for DCP detection, echos of
+	 * the "SC" command send in yt2_1380_fc_worker() will be received.
+	 */
+	dev_dbg(&serdev->dev, "recv: %*ph\n", (int)len, data);
+	return len;
+}
+
+static const struct serdev_device_ops yt2_1380_fc_serdev_ops = {
+	.receive_buf = yt2_1380_fc_receive,
+	.write_wakeup = serdev_device_write_wakeup,
+};
+
+static int yt2_1380_fc_serdev_probe(struct serdev_device *serdev)
+{
+	struct device *dev = &serdev->dev;
+	struct yt2_1380_fc *fc;
+	int ret;
+
+	fc = devm_kzalloc(dev, sizeof(*fc), GFP_KERNEL);
+	if (!fc)
+		return -ENOMEM;
+
+	fc->dev = dev;
+	fc->nb.notifier_call = yt2_1380_fc_extcon_evt;
+	INIT_WORK(&fc->work, yt2_1380_fc_worker);
+
+	/*
+	 * Do this first since it may return -EPROBE_DEFER.
+	 * There is no extcon_put(), so there is no need to free this.
+	 */
+	fc->extcon = extcon_get_extcon_dev(YT2_1380_FC_EXTCON_NAME);
+	if (IS_ERR(fc->extcon))
+		return dev_err_probe(dev, PTR_ERR(fc->extcon), "getting extcon\n");
+
+	fc->pinctrl = devm_pinctrl_get(dev);
+	if (IS_ERR(fc->pinctrl))
+		return dev_err_probe(dev, PTR_ERR(fc->pinctrl), "getting pinctrl\n");
+
+	/*
+	 * To switch the UART3 pins connected to the USB data lines between
+	 * UART and GPIO modes.
+	 */
+	fc->gpio_state = pinctrl_lookup_state(fc->pinctrl, "uart3_gpio");
+	fc->uart_state = pinctrl_lookup_state(fc->pinctrl, "uart3_uart");
+	if (IS_ERR(fc->gpio_state) || IS_ERR(fc->uart_state))
+		return dev_err_probe(dev, -EINVAL, "getting pinctrl states\n");
+
+	ret = yt2_1380_fc_set_gpio_mode(fc, true);
+	if (ret)
+		return ret;
+
+	fc->uart3_txd = devm_gpiod_get(dev, "uart3_txd", GPIOD_OUT_HIGH);
+	if (IS_ERR(fc->uart3_txd))
+		return dev_err_probe(dev, PTR_ERR(fc->uart3_txd), "getting uart3_txd gpio\n");
+
+	fc->uart3_rxd = devm_gpiod_get(dev, "uart3_rxd", GPIOD_OUT_HIGH);
+	if (IS_ERR(fc->uart3_rxd))
+		return dev_err_probe(dev, PTR_ERR(fc->uart3_rxd), "getting uart3_rxd gpio\n");
+
+	ret = yt2_1380_fc_set_gpio_mode(fc, false);
+	if (ret)
+		return ret;
+
+	ret = devm_serdev_device_open(dev, serdev);
+	if (ret)
+		return dev_err_probe(dev, ret, "opening UART device\n");
+
+	serdev_device_set_baudrate(serdev, 600);
+	serdev_device_set_flow_control(serdev, false);
+	serdev_device_set_drvdata(serdev, fc);
+	serdev_device_set_client_ops(serdev, &yt2_1380_fc_serdev_ops);
+
+	ret = devm_extcon_register_notifier_all(dev, fc->extcon, &fc->nb);
+	if (ret)
+		return dev_err_probe(dev, ret, "registering extcon notifier\n");
+
+	/* In case the extcon already has detected a DCP charger */
+	schedule_work(&fc->work);
+
+	return 0;
+}
+
+struct serdev_device_driver yt2_1380_fc_serdev_driver = {
+	.probe = yt2_1380_fc_serdev_probe,
+	.driver = {
+		.name = KBUILD_MODNAME,
+	},
+};
+
+static const struct pinctrl_map yt2_1380_fc_pinctrl_map[] = {
+	PIN_MAP_MUX_GROUP(YT2_1380_FC_SERDEV_NAME, "uart3_uart",
+			  "INT33FC:00", "uart3_grp", "uart"),
+	PIN_MAP_MUX_GROUP(YT2_1380_FC_SERDEV_NAME, "uart3_gpio",
+			  "INT33FC:00", "uart3_grp_gpio", "gpio"),
+};
+
+static int yt2_1380_fc_pdev_probe(struct platform_device *pdev)
+{
+	struct serdev_device *serdev;
+	struct device *ctrl_dev;
+	int ret;
+
+	/* Register pinctrl mappings for setting the UART3 pins mode */
+	ret = pinctrl_register_mappings(yt2_1380_fc_pinctrl_map,
+					ARRAY_SIZE(yt2_1380_fc_pinctrl_map));
+	if (ret)
+		return ret;
+
+	/* And create the serdev to talk to the charger over the UART3 pins */
+	ctrl_dev = get_serdev_controller("PNP0501", "1", 0, YT2_1380_FC_SERDEV_CTRL);
+	if (IS_ERR(ctrl_dev)) {
+		ret = PTR_ERR(ctrl_dev);
+		goto out_pinctrl_unregister_mappings;
+	}
+
+	serdev = serdev_device_alloc(to_serdev_controller(ctrl_dev));
+	put_device(ctrl_dev);
+	if (!serdev) {
+		ret = -ENOMEM;
+		goto out_pinctrl_unregister_mappings;
+	}
+
+	ret = serdev_device_add(serdev);
+	if (ret) {
+		dev_err_probe(&pdev->dev, ret, "adding serdev\n");
+		serdev_device_put(serdev);
+		goto out_pinctrl_unregister_mappings;
+	}
+
+	/*
+	 * serdev device <-> driver matching relies on OF or ACPI matches and
+	 * neither is available here, manually bind the driver.
+	 */
+	ret = device_driver_attach(&yt2_1380_fc_serdev_driver.driver, &serdev->dev);
+	if (ret) {
+		/* device_driver_attach() maps EPROBE_DEFER to EAGAIN, map it back */
+		ret = (ret == -EAGAIN) ? -EPROBE_DEFER : ret;
+		dev_err_probe(&pdev->dev, ret, "attaching serdev driver\n");
+		goto out_serdev_device_remove;
+	}
+
+	/* So that yt2_1380_fc_pdev_remove() can remove the serdev */
+	platform_set_drvdata(pdev, serdev);
+	return 0;
+
+out_serdev_device_remove:
+	serdev_device_remove(serdev);
+out_pinctrl_unregister_mappings:
+	pinctrl_unregister_mappings(yt2_1380_fc_pinctrl_map);
+	return ret;
+}
+
+static void yt2_1380_fc_pdev_remove(struct platform_device *pdev)
+{
+	struct serdev_device *serdev = platform_get_drvdata(pdev);
+
+	serdev_device_remove(serdev);
+	pinctrl_unregister_mappings(yt2_1380_fc_pinctrl_map);
+}
+
+static struct platform_driver yt2_1380_fc_pdev_driver = {
+	.probe = yt2_1380_fc_pdev_probe,
+	.remove_new = yt2_1380_fc_pdev_remove,
+	.driver = {
+		.name = YT2_1380_FC_PDEV_NAME,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
+	},
+};
+
+static int __init yt2_1380_fc_module_init(void)
+{
+	int ret;
+
+	/*
+	 * serdev driver MUST be registered first because pdev driver calls
+	 * device_driver_attach() on the serdev, serdev-driver pair.
+	 */
+	ret = serdev_device_driver_register(&yt2_1380_fc_serdev_driver);
+	if (ret)
+		return ret;
+
+	ret = platform_driver_register(&yt2_1380_fc_pdev_driver);
+	if (ret)
+		serdev_device_driver_unregister(&yt2_1380_fc_serdev_driver);
+
+	return ret;
+}
+module_init(yt2_1380_fc_module_init);
+
+static void __exit yt2_1380_fc_module_exit(void)
+{
+	platform_driver_unregister(&yt2_1380_fc_pdev_driver);
+	serdev_device_driver_unregister(&yt2_1380_fc_serdev_driver);
+}
+module_exit(yt2_1380_fc_module_exit);
+
+MODULE_ALIAS("platform:" YT2_1380_FC_PDEV_NAME);
+MODULE_DESCRIPTION("Lenovo Yoga Tablet 2 1380 fast charge driver");
+MODULE_AUTHOR("Hans de Goede <hansg@kernel.org>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/meegopad_anx7428.c b/drivers/platform/x86/meegopad_anx7428.c
new file mode 100644
index 00000000000000..b2c4d4f526c4dc
--- /dev/null
+++ b/drivers/platform/x86/meegopad_anx7428.c
@@ -0,0 +1,150 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Driver to power on the Analogix ANX7428 USB Type-C crosspoint switch
+ * on MeeGoPad top-set boxes.
+ *
+ * The MeeGoPad T8 and T9 are Cherry Trail top-set boxes which
+ * use an ANX7428 to provide a Type-C port with USB3.1 Gen 1 and
+ * DisplayPort over Type-C alternate mode support.
+ *
+ * The ANX7428 has a microcontroller which takes care of the PD
+ * negotiation and automatically sets the builtin Crosspoint Switch
+ * to send the right signal to the 4 highspeed pairs of the Type-C
+ * connector. It also takes care of HPD and AUX channel routing for
+ * DP alternate mode.
+ *
+ * IOW the ANX7428 operates fully autonomous and to the x5-Z8350 SoC
+ * things look like there simply is a USB-3 Type-A connector and a
+ * separate DisplayPort connector. Except that the BIOS does not
+ * power on the ANX7428 at boot. This driver takes care of powering
+ * on the ANX7428.
+ *
+ * It should be possible to tell the micro-controller which data- and/or
+ * power-role to negotiate and to swap the role(s) after negotiation
+ * but the MeeGoPad top-set boxes always draw their power from a separate
+ * power-connector and they only support USB host-mode. So this functionality
+ * is unnecessary and due to lack of documentation this is tricky to support.
+ *
+ * For a more complete ANX7428 driver see drivers/usb/misc/anx7418/ of
+ * the LineageOS kernel for the LG G5 (International) aka the LG H850:
+ * https://github.com/LineageOS/android_kernel_lge_msm8996/
+ *
+ * (C) Copyright 2024 Hans de Goede <hansg@kernel.org>
+ */
+
+#include <linux/acpi.h>
+#include <linux/bits.h>
+#include <linux/delay.h>
+#include <linux/dev_printk.h>
+#include <linux/dmi.h>
+#include <linux/err.h>
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/iopoll.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+/* Register addresses and fields */
+#define VENDOR_ID			0x00
+#define DEVICE_ID			0x02
+
+#define TX_STATUS			0x16
+#define STATUS_SUCCESS			BIT(0)
+#define STATUS_ERROR			BIT(1)
+#define OCM_STARTUP			BIT(7)
+
+static bool force;
+module_param(force, bool, 0444);
+MODULE_PARM_DESC(force, "Force the driver to probe on unknown boards");
+
+static const struct acpi_gpio_params enable_gpio = { 0, 0, false };
+static const struct acpi_gpio_params reset_gpio = { 1, 0, true };
+
+static const struct acpi_gpio_mapping meegopad_anx7428_gpios[] = {
+	{ "enable-gpios", &enable_gpio, 1 },
+	{ "reset-gpios", &reset_gpio, 1 },
+	{ }
+};
+
+static const struct dmi_system_id meegopad_anx7428_ids[] = {
+	{
+		/* Meegopad T08 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Default string"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Default string"),
+			DMI_MATCH(DMI_BOARD_NAME, "T3 MRD"),
+			DMI_MATCH(DMI_BOARD_VERSION, "V1.1"),
+		},
+	},
+	{ }
+};
+
+static int anx7428_probe(struct i2c_client *client)
+{
+	struct device *dev = &client->dev;
+	struct gpio_desc *gpio;
+	int ret, val;
+
+	if (!dmi_check_system(meegopad_anx7428_ids) && !force) {
+		dev_warn(dev, "Not probing unknown board, pass meegopad_anx7428.force=1 to probe");
+		return -ENODEV;
+	}
+
+	ret = devm_acpi_dev_add_driver_gpios(dev, meegopad_anx7428_gpios);
+	if (ret)
+		return ret;
+
+	/*
+	 * Set GPIOs to desired values while getting them, they are not needed
+	 * afterwards. Ordering and delays come from android_kernel_lge_msm8996.
+	 */
+	gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH);
+	if (IS_ERR(gpio))
+		return dev_err_probe(dev, PTR_ERR(gpio), "getting enable GPIO\n");
+
+	fsleep(10000);
+
+	gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
+	if (IS_ERR(gpio))
+		return dev_err_probe(dev, PTR_ERR(gpio), "getting reset GPIO\n");
+
+	/* Wait for the OCM (On Chip Microcontroller) to start */
+	ret = read_poll_timeout(i2c_smbus_read_byte_data, val,
+				val >= 0 && (val & OCM_STARTUP),
+				5000, 50000, true, client, TX_STATUS);
+	if (ret)
+		return dev_err_probe(dev, ret,
+				     "On Chip Microcontroller did not start, status: 0x%02x\n",
+				     val);
+
+	ret = i2c_smbus_read_word_data(client, VENDOR_ID);
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "reading vendor-id register\n");
+	val = ret;
+
+	ret = i2c_smbus_read_word_data(client, DEVICE_ID);
+	if (ret < 0)
+		return dev_err_probe(dev, ret, "reading device-id register\n");
+
+	dev_dbg(dev, "Powered on ANX7428 id %04x:%04x\n", val, ret);
+	return 0;
+}
+
+static const struct acpi_device_id anx7428_acpi_match[] = {
+	{ "ANXO7418" }, /* ACPI says 7418 (max 2 DP lanes version) but HW is 7428 */
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, anx7428_acpi_match);
+
+static struct i2c_driver anx7428_driver = {
+	.driver = {
+		.name = "meegopad_anx7428",
+		.acpi_match_table = anx7428_acpi_match,
+	},
+	.probe = anx7428_probe,
+};
+module_i2c_driver(anx7428_driver);
+
+MODULE_AUTHOR("Hans de Goede <hansg@kernel.org>");
+MODULE_DESCRIPTION("MeeGoPad ANX7428 driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index f4c6c36e05a521..e5391a37014d83 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -317,7 +317,7 @@ static ssize_t show_wlan(struct device *dev,
 	if (ret < 0)
 		return ret;
 
-	return sprintf(buf, "%i\n", enabled);
+	return sysfs_emit(buf, "%i\n", enabled);
 }
 
 static ssize_t store_wlan(struct device *dev,
@@ -341,7 +341,7 @@ static ssize_t show_bluetooth(struct device *dev,
 	if (ret < 0)
 		return ret;
 
-	return sprintf(buf, "%i\n", enabled);
+	return sysfs_emit(buf, "%i\n", enabled);
 }
 
 static ssize_t store_bluetooth(struct device *dev,
@@ -364,7 +364,7 @@ static ssize_t show_threeg(struct device *dev,
 	if (ret < 0)
 		return ret;
 
-	return sprintf(buf, "%i\n", threeg_s);
+	return sysfs_emit(buf, "%i\n", threeg_s);
 }
 
 static ssize_t store_threeg(struct device *dev,
@@ -383,7 +383,7 @@ static ssize_t show_lcd_level(struct device *dev,
 	if (ret < 0)
 		return ret;
 
-	return sprintf(buf, "%i\n", ret);
+	return sysfs_emit(buf, "%i\n", ret);
 }
 
 static ssize_t store_lcd_level(struct device *dev,
@@ -413,7 +413,7 @@ static ssize_t show_auto_brightness(struct device *dev,
 	if (ret < 0)
 		return ret;
 
-	return sprintf(buf, "%i\n", ret);
+	return sysfs_emit(buf, "%i\n", ret);
 }
 
 static ssize_t store_auto_brightness(struct device *dev,
@@ -443,7 +443,7 @@ static ssize_t show_touchpad(struct device *dev,
 	if (result < 0)
 		return result;
 
-	return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TOUCHPAD_MASK));
+	return sysfs_emit(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TOUCHPAD_MASK));
 }
 
 static ssize_t show_turbo(struct device *dev,
@@ -457,7 +457,7 @@ static ssize_t show_turbo(struct device *dev,
 	if (result < 0)
 		return result;
 
-	return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TURBO_MASK));
+	return sysfs_emit(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TURBO_MASK));
 }
 
 static ssize_t show_eco(struct device *dev,
@@ -471,7 +471,7 @@ static ssize_t show_eco(struct device *dev,
 	if (result < 0)
 		return result;
 
-	return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_ECO_MASK));
+	return sysfs_emit(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_ECO_MASK));
 }
 
 static ssize_t show_turbo_cooldown(struct device *dev,
@@ -485,7 +485,7 @@ static ssize_t show_turbo_cooldown(struct device *dev,
 	if (result < 0)
 		return result;
 
-	return sprintf(buf, "%i\n", (!!(rdata & MSI_STANDARD_EC_TURBO_MASK)) |
+	return sysfs_emit(buf, "%i\n", (!!(rdata & MSI_STANDARD_EC_TURBO_MASK)) |
 		(!!(rdata & MSI_STANDARD_EC_TURBO_COOLDOWN_MASK) << 1));
 }
 
@@ -500,7 +500,7 @@ static ssize_t show_auto_fan(struct device *dev,
 	if (result < 0)
 		return result;
 
-	return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_AUTOFAN_MASK));
+	return sysfs_emit(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_AUTOFAN_MASK));
 }
 
 static ssize_t store_auto_fan(struct device *dev,
diff --git a/drivers/platform/x86/msi-wmi-platform.c b/drivers/platform/x86/msi-wmi-platform.c
new file mode 100644
index 00000000000000..436fb91a47db7f
--- /dev/null
+++ b/drivers/platform/x86/msi-wmi-platform.c
@@ -0,0 +1,428 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Linux driver for WMI platform features on MSI notebooks.
+ *
+ * Copyright (C) 2024 Armin Wolf <W_Armin@gmx.de>
+ */
+
+#define pr_format(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/acpi.h>
+#include <linux/bits.h>
+#include <linux/bitfield.h>
+#include <linux/debugfs.h>
+#include <linux/device.h>
+#include <linux/device/driver.h>
+#include <linux/errno.h>
+#include <linux/hwmon.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/printk.h>
+#include <linux/rwsem.h>
+#include <linux/types.h>
+#include <linux/wmi.h>
+
+#include <asm/unaligned.h>
+
+#define DRIVER_NAME	"msi-wmi-platform"
+
+#define MSI_PLATFORM_GUID	"ABBC0F6E-8EA1-11d1-00A0-C90629100000"
+
+#define MSI_WMI_PLATFORM_INTERFACE_VERSION	2
+
+#define MSI_PLATFORM_WMI_MAJOR_OFFSET	1
+#define MSI_PLATFORM_WMI_MINOR_OFFSET	2
+
+#define MSI_PLATFORM_EC_FLAGS_OFFSET	1
+#define MSI_PLATFORM_EC_MINOR_MASK	GENMASK(3, 0)
+#define MSI_PLATFORM_EC_MAJOR_MASK	GENMASK(5, 4)
+#define MSI_PLATFORM_EC_CHANGED_PAGE	BIT(6)
+#define MSI_PLATFORM_EC_IS_TIGERLAKE	BIT(7)
+#define MSI_PLATFORM_EC_VERSION_OFFSET	2
+
+static bool force;
+module_param_unsafe(force, bool, 0);
+MODULE_PARM_DESC(force, "Force loading without checking for supported WMI interface versions");
+
+enum msi_wmi_platform_method {
+	MSI_PLATFORM_GET_PACKAGE	= 0x01,
+	MSI_PLATFORM_SET_PACKAGE	= 0x02,
+	MSI_PLATFORM_GET_EC		= 0x03,
+	MSI_PLATFORM_SET_EC		= 0x04,
+	MSI_PLATFORM_GET_BIOS		= 0x05,
+	MSI_PLATFORM_SET_BIOS		= 0x06,
+	MSI_PLATFORM_GET_SMBUS		= 0x07,
+	MSI_PLATFORM_SET_SMBUS		= 0x08,
+	MSI_PLATFORM_GET_MASTER_BATTERY = 0x09,
+	MSI_PLATFORM_SET_MASTER_BATTERY = 0x0a,
+	MSI_PLATFORM_GET_SLAVE_BATTERY	= 0x0b,
+	MSI_PLATFORM_SET_SLAVE_BATTERY	= 0x0c,
+	MSI_PLATFORM_GET_TEMPERATURE	= 0x0d,
+	MSI_PLATFORM_SET_TEMPERATURE	= 0x0e,
+	MSI_PLATFORM_GET_THERMAL	= 0x0f,
+	MSI_PLATFORM_SET_THERMAL	= 0x10,
+	MSI_PLATFORM_GET_FAN		= 0x11,
+	MSI_PLATFORM_SET_FAN		= 0x12,
+	MSI_PLATFORM_GET_DEVICE		= 0x13,
+	MSI_PLATFORM_SET_DEVICE		= 0x14,
+	MSI_PLATFORM_GET_POWER		= 0x15,
+	MSI_PLATFORM_SET_POWER		= 0x16,
+	MSI_PLATFORM_GET_DEBUG		= 0x17,
+	MSI_PLATFORM_SET_DEBUG		= 0x18,
+	MSI_PLATFORM_GET_AP		= 0x19,
+	MSI_PLATFORM_SET_AP		= 0x1a,
+	MSI_PLATFORM_GET_DATA		= 0x1b,
+	MSI_PLATFORM_SET_DATA		= 0x1c,
+	MSI_PLATFORM_GET_WMI		= 0x1d,
+};
+
+struct msi_wmi_platform_debugfs_data {
+	struct wmi_device *wdev;
+	enum msi_wmi_platform_method method;
+	struct rw_semaphore buffer_lock;	/* Protects debugfs buffer */
+	size_t length;
+	u8 buffer[32];
+};
+
+static const char * const msi_wmi_platform_debugfs_names[] = {
+	"get_package",
+	"set_package",
+	"get_ec",
+	"set_ec",
+	"get_bios",
+	"set_bios",
+	"get_smbus",
+	"set_smbus",
+	"get_master_battery",
+	"set_master_battery",
+	"get_slave_battery",
+	"set_slave_battery",
+	"get_temperature",
+	"set_temperature",
+	"get_thermal",
+	"set_thermal",
+	"get_fan",
+	"set_fan",
+	"get_device",
+	"set_device",
+	"get_power",
+	"set_power",
+	"get_debug",
+	"set_debug",
+	"get_ap",
+	"set_ap",
+	"get_data",
+	"set_data",
+	"get_wmi"
+};
+
+static int msi_wmi_platform_parse_buffer(union acpi_object *obj, u8 *output, size_t length)
+{
+	if (obj->type != ACPI_TYPE_BUFFER)
+		return -ENOMSG;
+
+	if (obj->buffer.length != length)
+		return -EPROTO;
+
+	if (!obj->buffer.pointer[0])
+		return -EIO;
+
+	memcpy(output, obj->buffer.pointer, obj->buffer.length);
+
+	return 0;
+}
+
+static int msi_wmi_platform_query(struct wmi_device *wdev, enum msi_wmi_platform_method method,
+				  u8 *input, size_t input_length, u8 *output, size_t output_length)
+{
+	struct acpi_buffer out = { ACPI_ALLOCATE_BUFFER, NULL };
+	struct acpi_buffer in = {
+		.length = input_length,
+		.pointer = input
+	};
+	union acpi_object *obj;
+	acpi_status status;
+	int ret;
+
+	if (!input_length || !output_length)
+		return -EINVAL;
+
+	status = wmidev_evaluate_method(wdev, 0x0, method, &in, &out);
+	if (ACPI_FAILURE(status))
+		return -EIO;
+
+	obj = out.pointer;
+	if (!obj)
+		return -ENODATA;
+
+	ret = msi_wmi_platform_parse_buffer(obj, output, output_length);
+	kfree(obj);
+
+	return ret;
+}
+
+static umode_t msi_wmi_platform_is_visible(const void *drvdata, enum hwmon_sensor_types type,
+					   u32 attr, int channel)
+{
+	return 0444;
+}
+
+static int msi_wmi_platform_read(struct device *dev, enum hwmon_sensor_types type, u32 attr,
+				 int channel, long *val)
+{
+	struct wmi_device *wdev = dev_get_drvdata(dev);
+	u8 input[32] = { 0 };
+	u8 output[32];
+	u16 data;
+	int ret;
+
+	ret = msi_wmi_platform_query(wdev, MSI_PLATFORM_GET_FAN, input, sizeof(input), output,
+				     sizeof(output));
+	if (ret < 0)
+		return ret;
+
+	data = get_unaligned_be16(&output[channel * 2 + 1]);
+	if (!data)
+		*val = 0;
+	else
+		*val = 480000 / data;
+
+	return 0;
+}
+
+static const struct hwmon_ops msi_wmi_platform_ops = {
+	.is_visible = msi_wmi_platform_is_visible,
+	.read = msi_wmi_platform_read,
+};
+
+static const struct hwmon_channel_info * const msi_wmi_platform_info[] = {
+	HWMON_CHANNEL_INFO(fan,
+			   HWMON_F_INPUT,
+			   HWMON_F_INPUT,
+			   HWMON_F_INPUT,
+			   HWMON_F_INPUT
+			   ),
+	NULL
+};
+
+static const struct hwmon_chip_info msi_wmi_platform_chip_info = {
+	.ops = &msi_wmi_platform_ops,
+	.info = msi_wmi_platform_info,
+};
+
+static ssize_t msi_wmi_platform_write(struct file *fp, const char __user *input, size_t length,
+				      loff_t *offset)
+{
+	struct seq_file *seq = fp->private_data;
+	struct msi_wmi_platform_debugfs_data *data = seq->private;
+	u8 payload[32] = { };
+	ssize_t ret;
+
+	/* Do not allow partial writes */
+	if (*offset != 0)
+		return -EINVAL;
+
+	/* Do not allow incomplete command buffers */
+	if (length != data->length)
+		return -EINVAL;
+
+	ret = simple_write_to_buffer(payload, sizeof(payload), offset, input, length);
+	if (ret < 0)
+		return ret;
+
+	down_write(&data->buffer_lock);
+	ret = msi_wmi_platform_query(data->wdev, data->method, payload, data->length, data->buffer,
+				     data->length);
+	up_write(&data->buffer_lock);
+
+	if (ret < 0)
+		return ret;
+
+	return length;
+}
+
+static int msi_wmi_platform_show(struct seq_file *seq, void *p)
+{
+	struct msi_wmi_platform_debugfs_data *data = seq->private;
+	int ret;
+
+	down_read(&data->buffer_lock);
+	ret = seq_write(seq, data->buffer, data->length);
+	up_read(&data->buffer_lock);
+
+	return ret;
+}
+
+static int msi_wmi_platform_open(struct inode *inode, struct file *fp)
+{
+	struct msi_wmi_platform_debugfs_data *data = inode->i_private;
+
+	/* The seq_file uses the last byte of the buffer for detecting buffer overflows */
+	return single_open_size(fp, msi_wmi_platform_show, data, data->length + 1);
+}
+
+static const struct file_operations msi_wmi_platform_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.open = msi_wmi_platform_open,
+	.read = seq_read,
+	.write = msi_wmi_platform_write,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static void msi_wmi_platform_debugfs_remove(void *data)
+{
+	struct dentry *dir = data;
+
+	debugfs_remove_recursive(dir);
+}
+
+static void msi_wmi_platform_debugfs_add(struct wmi_device *wdev, struct dentry *dir,
+					 const char *name, enum msi_wmi_platform_method method)
+{
+	struct msi_wmi_platform_debugfs_data *data;
+	struct dentry *entry;
+
+	data = devm_kzalloc(&wdev->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return;
+
+	data->wdev = wdev;
+	data->method = method;
+	init_rwsem(&data->buffer_lock);
+
+	/* The ACPI firmware for now always requires a 32 byte input buffer due to
+	 * a peculiarity in how Windows handles the CreateByteField() ACPI operator.
+	 */
+	data->length = 32;
+
+	entry = debugfs_create_file(name, 0600, dir, data, &msi_wmi_platform_debugfs_fops);
+	if (IS_ERR(entry))
+		devm_kfree(&wdev->dev, data);
+}
+
+static void msi_wmi_platform_debugfs_init(struct wmi_device *wdev)
+{
+	struct dentry *dir;
+	char dir_name[64];
+	int ret, method;
+
+	scnprintf(dir_name, ARRAY_SIZE(dir_name), "%s-%s", DRIVER_NAME, dev_name(&wdev->dev));
+
+	dir = debugfs_create_dir(dir_name, NULL);
+	if (IS_ERR(dir))
+		return;
+
+	ret = devm_add_action_or_reset(&wdev->dev, msi_wmi_platform_debugfs_remove, dir);
+	if (ret < 0)
+		return;
+
+	for (method = MSI_PLATFORM_GET_PACKAGE; method <= MSI_PLATFORM_GET_WMI; method++)
+		msi_wmi_platform_debugfs_add(wdev, dir, msi_wmi_platform_debugfs_names[method - 1],
+					     method);
+}
+
+static int msi_wmi_platform_hwmon_init(struct wmi_device *wdev)
+{
+	struct device *hdev;
+
+	hdev = devm_hwmon_device_register_with_info(&wdev->dev, "msi_wmi_platform", wdev,
+						    &msi_wmi_platform_chip_info, NULL);
+
+	return PTR_ERR_OR_ZERO(hdev);
+}
+
+static int msi_wmi_platform_ec_init(struct wmi_device *wdev)
+{
+	u8 input[32] = { 0 };
+	u8 output[32];
+	u8 flags;
+	int ret;
+
+	ret = msi_wmi_platform_query(wdev, MSI_PLATFORM_GET_EC, input, sizeof(input), output,
+				     sizeof(output));
+	if (ret < 0)
+		return ret;
+
+	flags = output[MSI_PLATFORM_EC_FLAGS_OFFSET];
+
+	dev_dbg(&wdev->dev, "EC RAM version %lu.%lu\n",
+		FIELD_GET(MSI_PLATFORM_EC_MAJOR_MASK, flags),
+		FIELD_GET(MSI_PLATFORM_EC_MINOR_MASK, flags));
+	dev_dbg(&wdev->dev, "EC firmware version %.28s\n",
+		&output[MSI_PLATFORM_EC_VERSION_OFFSET]);
+
+	if (!(flags & MSI_PLATFORM_EC_IS_TIGERLAKE)) {
+		if (!force)
+			return -ENODEV;
+
+		dev_warn(&wdev->dev, "Loading on a non-Tigerlake platform\n");
+	}
+
+	return 0;
+}
+
+static int msi_wmi_platform_init(struct wmi_device *wdev)
+{
+	u8 input[32] = { 0 };
+	u8 output[32];
+	int ret;
+
+	ret = msi_wmi_platform_query(wdev, MSI_PLATFORM_GET_WMI, input, sizeof(input), output,
+				     sizeof(output));
+	if (ret < 0)
+		return ret;
+
+	dev_dbg(&wdev->dev, "WMI interface version %u.%u\n",
+		output[MSI_PLATFORM_WMI_MAJOR_OFFSET],
+		output[MSI_PLATFORM_WMI_MINOR_OFFSET]);
+
+	if (output[MSI_PLATFORM_WMI_MAJOR_OFFSET] != MSI_WMI_PLATFORM_INTERFACE_VERSION) {
+		if (!force)
+			return -ENODEV;
+
+		dev_warn(&wdev->dev, "Loading despite unsupported WMI interface version (%u.%u)\n",
+			 output[MSI_PLATFORM_WMI_MAJOR_OFFSET],
+			 output[MSI_PLATFORM_WMI_MINOR_OFFSET]);
+	}
+
+	return 0;
+}
+
+static int msi_wmi_platform_probe(struct wmi_device *wdev, const void *context)
+{
+	int ret;
+
+	ret = msi_wmi_platform_init(wdev);
+	if (ret < 0)
+		return ret;
+
+	ret = msi_wmi_platform_ec_init(wdev);
+	if (ret < 0)
+		return ret;
+
+	msi_wmi_platform_debugfs_init(wdev);
+
+	return msi_wmi_platform_hwmon_init(wdev);
+}
+
+static const struct wmi_device_id msi_wmi_platform_id_table[] = {
+	{ MSI_PLATFORM_GUID, NULL },
+	{ }
+};
+MODULE_DEVICE_TABLE(wmi, msi_wmi_platform_id_table);
+
+static struct wmi_driver msi_wmi_platform_driver = {
+	.driver = {
+		.name = DRIVER_NAME,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
+	},
+	.id_table = msi_wmi_platform_id_table,
+	.probe = msi_wmi_platform_probe,
+	.no_singleton = true,
+};
+module_wmi_driver(msi_wmi_platform_driver);
+
+MODULE_AUTHOR("Armin Wolf <W_Armin@gmx.de>");
+MODULE_DESCRIPTION("MSI WMI platform features");
+MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/p2sb.c b/drivers/platform/x86/p2sb.c
index 3d66e1d4eb1f52..3bf5d2243491af 100644
--- a/drivers/platform/x86/p2sb.c
+++ b/drivers/platform/x86/p2sb.c
@@ -43,7 +43,7 @@ struct p2sb_res_cache {
 
 static struct p2sb_res_cache p2sb_resources[NR_P2SB_RES_CACHE];
 
-static int p2sb_get_devfn(unsigned int *devfn)
+static void p2sb_get_devfn(unsigned int *devfn)
 {
 	unsigned int fn = P2SB_DEVFN_DEFAULT;
 	const struct x86_cpu_id *id;
@@ -53,15 +53,11 @@ static int p2sb_get_devfn(unsigned int *devfn)
 		fn = (unsigned int)id->driver_data;
 
 	*devfn = fn;
-	return 0;
 }
 
-static bool p2sb_valid_resource(struct resource *res)
+static bool p2sb_valid_resource(const struct resource *res)
 {
-	if (res->flags)
-		return true;
-
-	return false;
+	return res->flags & ~IORESOURCE_UNSET;
 }
 
 /* Copy resource from the first BAR of the device in question */
@@ -135,9 +131,7 @@ static int p2sb_cache_resources(void)
 	int ret;
 
 	/* Get devfn for P2SB device itself */
-	ret = p2sb_get_devfn(&devfn_p2sb);
-	if (ret)
-		return ret;
+	p2sb_get_devfn(&devfn_p2sb);
 
 	bus = p2sb_get_bus(NULL);
 	if (!bus)
@@ -194,17 +188,13 @@ static int p2sb_cache_resources(void)
 int p2sb_bar(struct pci_bus *bus, unsigned int devfn, struct resource *mem)
 {
 	struct p2sb_res_cache *cache;
-	int ret;
 
 	bus = p2sb_get_bus(bus);
 	if (!bus)
 		return -ENODEV;
 
-	if (!devfn) {
-		ret = p2sb_get_devfn(&devfn);
-		if (ret)
-			return ret;
-	}
+	if (!devfn)
+		p2sb_get_devfn(&devfn);
 
 	cache = &p2sb_resources[PCI_FUNC(devfn)];
 	if (cache->bus_dev_id != bus->dev.id)
@@ -220,16 +210,20 @@ EXPORT_SYMBOL_GPL(p2sb_bar);
 
 static int __init p2sb_fs_init(void)
 {
-	p2sb_cache_resources();
-	return 0;
+	return p2sb_cache_resources();
 }
 
 /*
- * pci_rescan_remove_lock to avoid access to unhidden P2SB devices can
- * not be locked in sysfs pci bus rescan path because of deadlock. To
- * avoid the deadlock, access to P2SB devices with the lock at an early
- * step in kernel initialization and cache required resources. This
- * should happen after subsys_initcall which initializes PCI subsystem
- * and before device_initcall which requires P2SB resources.
+ * pci_rescan_remove_lock() can not be locked in sysfs PCI bus rescan path
+ * because of deadlock. To avoid the deadlock, access P2SB devices with the lock
+ * at an early step in kernel initialization and cache required resources.
+ *
+ * We want to run as early as possible. If the P2SB was assigned a bad BAR,
+ * we'll need to wait on pcibios_assign_resources() to fix it. So, our list of
+ * initcall dependencies looks something like this:
+ *
+ * ...
+ * subsys_initcall (pci_subsys_init)
+ * fs_initcall     (pcibios_assign_resources)
  */
-fs_initcall(p2sb_fs_init);
+fs_initcall_sync(p2sb_fs_init);
diff --git a/drivers/platform/x86/quickstart.c b/drivers/platform/x86/quickstart.c
new file mode 100644
index 00000000000000..df496c7e717142
--- /dev/null
+++ b/drivers/platform/x86/quickstart.c
@@ -0,0 +1,246 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * ACPI Direct App Launch driver
+ *
+ * Copyright (C) 2024 Armin Wolf <W_Armin@gmx.de>
+ * Copyright (C) 2022 Arvid Norlander <lkml@vorapal.se>
+ * Copyright (C) 2007-2010 Angelo Arrifano <miknix@gmail.com>
+ *
+ * Information gathered from disassembled dsdt and from here:
+ * <https://archive.org/details/microsoft-acpi-dirapplaunch>
+ */
+
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
+#include <linux/mod_devicetable.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include <linux/pm_wakeup.h>
+#include <linux/printk.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+#include <linux/types.h>
+
+#include <asm/unaligned.h>
+
+#define DRIVER_NAME	"quickstart"
+
+/*
+ * There will be two events:
+ * 0x02 - Button was pressed while device was off/sleeping.
+ * 0x80 - Button was pressed while device was up.
+ */
+#define QUICKSTART_EVENT_RUNTIME	0x80
+
+struct quickstart_data {
+	struct device *dev;
+	struct mutex input_lock;	/* Protects input sequence during notify */
+	struct input_dev *input_device;
+	char input_name[32];
+	char phys[32];
+	u32 id;
+};
+
+/*
+ * Knowing what these buttons do require system specific knowledge.
+ * This could be done by matching on DMI data in a long quirk table.
+ * However, it is easier to leave it up to user space to figure this out.
+ *
+ * Using for example udev hwdb the scancode 0x1 can be remapped suitably.
+ */
+static const struct key_entry quickstart_keymap[] = {
+	{ KE_KEY, 0x1, { KEY_UNKNOWN } },
+	{ KE_END, 0 },
+};
+
+static ssize_t button_id_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct quickstart_data *data = dev_get_drvdata(dev);
+
+	return sysfs_emit(buf, "%u\n", data->id);
+}
+static DEVICE_ATTR_RO(button_id);
+
+static struct attribute *quickstart_attrs[] = {
+	&dev_attr_button_id.attr,
+	NULL
+};
+ATTRIBUTE_GROUPS(quickstart);
+
+static void quickstart_notify(acpi_handle handle, u32 event, void *context)
+{
+	struct quickstart_data *data = context;
+
+	switch (event) {
+	case QUICKSTART_EVENT_RUNTIME:
+		mutex_lock(&data->input_lock);
+		sparse_keymap_report_event(data->input_device, 0x1, 1, true);
+		mutex_unlock(&data->input_lock);
+
+		acpi_bus_generate_netlink_event(DRIVER_NAME, dev_name(data->dev), event, 0);
+		break;
+	default:
+		dev_err(data->dev, FW_INFO "Unexpected ACPI notify event (%u)\n", event);
+		break;
+	}
+}
+
+/*
+ * The GHID ACPI method is used to indicate the "role" of the button.
+ * However, all the meanings of these values are vendor defined.
+ *
+ * We do however expose this value to user space.
+ */
+static int quickstart_get_ghid(struct quickstart_data *data)
+{
+	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+	acpi_handle handle = ACPI_HANDLE(data->dev);
+	union acpi_object *obj;
+	acpi_status status;
+	int ret = 0;
+
+	/*
+	 * This returns a buffer telling the button usage ID,
+	 * and triggers pending notify events (The ones before booting).
+	 */
+	status = acpi_evaluate_object_typed(handle, "GHID", NULL, &buffer, ACPI_TYPE_BUFFER);
+	if (ACPI_FAILURE(status))
+		return -EIO;
+
+	obj = buffer.pointer;
+	if (!obj)
+		return -ENODATA;
+
+	/*
+	 * Quoting the specification:
+	 * "The GHID method can return a BYTE, WORD, or DWORD.
+	 *  The value must be encoded in little-endian byte
+	 *  order (least significant byte first)."
+	 */
+	switch (obj->buffer.length) {
+	case 1:
+		data->id = obj->buffer.pointer[0];
+		break;
+	case 2:
+		data->id = get_unaligned_le16(obj->buffer.pointer);
+		break;
+	case 4:
+		data->id = get_unaligned_le32(obj->buffer.pointer);
+		break;
+	default:
+		dev_err(data->dev,
+			FW_BUG "GHID method returned buffer of unexpected length %u\n",
+			obj->buffer.length);
+		ret = -EIO;
+		break;
+	}
+
+	kfree(obj);
+
+	return ret;
+}
+
+static void quickstart_notify_remove(void *context)
+{
+	struct quickstart_data *data = context;
+	acpi_handle handle;
+
+	handle = ACPI_HANDLE(data->dev);
+
+	acpi_remove_notify_handler(handle, ACPI_DEVICE_NOTIFY, quickstart_notify);
+}
+
+static void quickstart_mutex_destroy(void *data)
+{
+	struct mutex *lock = data;
+
+	mutex_destroy(lock);
+}
+
+static int quickstart_probe(struct platform_device *pdev)
+{
+	struct quickstart_data *data;
+	acpi_handle handle;
+	acpi_status status;
+	int ret;
+
+	handle = ACPI_HANDLE(&pdev->dev);
+	if (!handle)
+		return -ENODEV;
+
+	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	data->dev = &pdev->dev;
+	dev_set_drvdata(&pdev->dev, data);
+
+	mutex_init(&data->input_lock);
+	ret = devm_add_action_or_reset(&pdev->dev, quickstart_mutex_destroy, &data->input_lock);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * We have to initialize the device wakeup before evaluating GHID because
+	 * doing so will notify the device if the button was used to wake the machine
+	 * from S5.
+	 */
+	device_init_wakeup(&pdev->dev, true);
+
+	ret = quickstart_get_ghid(data);
+	if (ret < 0)
+		return ret;
+
+	data->input_device = devm_input_allocate_device(&pdev->dev);
+	if (!data->input_device)
+		return -ENOMEM;
+
+	ret = sparse_keymap_setup(data->input_device, quickstart_keymap, NULL);
+	if (ret < 0)
+		return ret;
+
+	snprintf(data->input_name, sizeof(data->input_name), "Quickstart Button %u", data->id);
+	snprintf(data->phys, sizeof(data->phys), DRIVER_NAME "/input%u", data->id);
+
+	data->input_device->name = data->input_name;
+	data->input_device->phys = data->phys;
+	data->input_device->id.bustype = BUS_HOST;
+
+	ret = input_register_device(data->input_device);
+	if (ret < 0)
+		return ret;
+
+	status = acpi_install_notify_handler(handle, ACPI_DEVICE_NOTIFY, quickstart_notify, data);
+	if (ACPI_FAILURE(status))
+		return -EIO;
+
+	return devm_add_action_or_reset(&pdev->dev, quickstart_notify_remove, data);
+}
+
+static const struct acpi_device_id quickstart_device_ids[] = {
+	{ "PNP0C32" },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, quickstart_device_ids);
+
+static struct platform_driver quickstart_platform_driver = {
+	.driver	= {
+		.name = DRIVER_NAME,
+		.dev_groups = quickstart_groups,
+		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
+		.acpi_match_table = quickstart_device_ids,
+	},
+	.probe = quickstart_probe,
+};
+module_platform_driver(quickstart_platform_driver);
+
+MODULE_AUTHOR("Armin Wolf <W_Armin@gmx.de>");
+MODULE_AUTHOR("Arvid Norlander <lkml@vorpal.se>");
+MODULE_AUTHOR("Angelo Arrifano");
+MODULE_DESCRIPTION("ACPI Direct App Launch driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/samsung-laptop.c b/drivers/platform/x86/samsung-laptop.c
index b4aa8ba35d2d7d..3d2f8e758369d8 100644
--- a/drivers/platform/x86/samsung-laptop.c
+++ b/drivers/platform/x86/samsung-laptop.c
@@ -661,9 +661,9 @@ static ssize_t get_performance_level(struct device *dev,
 	/* The logic is backwards, yeah, lots of fun... */
 	for (i = 0; config->performance_levels[i].name; ++i) {
 		if (sretval.data[0] == config->performance_levels[i].value)
-			return sprintf(buf, "%s\n", config->performance_levels[i].name);
+			return sysfs_emit(buf, "%s\n", config->performance_levels[i].name);
 	}
-	return sprintf(buf, "%s\n", "unknown");
+	return sysfs_emit(buf, "%s\n", "unknown");
 }
 
 static ssize_t set_performance_level(struct device *dev,
@@ -744,7 +744,7 @@ static ssize_t get_battery_life_extender(struct device *dev,
 	if (ret < 0)
 		return ret;
 
-	return sprintf(buf, "%d\n", ret);
+	return sysfs_emit(buf, "%d\n", ret);
 }
 
 static ssize_t set_battery_life_extender(struct device *dev,
@@ -813,7 +813,7 @@ static ssize_t get_usb_charge(struct device *dev,
 	if (ret < 0)
 		return ret;
 
-	return sprintf(buf, "%d\n", ret);
+	return sysfs_emit(buf, "%d\n", ret);
 }
 
 static ssize_t set_usb_charge(struct device *dev,
@@ -878,7 +878,7 @@ static ssize_t get_lid_handling(struct device *dev,
 	if (ret < 0)
 		return ret;
 
-	return sprintf(buf, "%d\n", ret);
+	return sysfs_emit(buf, "%d\n", ret);
 }
 
 static ssize_t set_lid_handling(struct device *dev,
diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/think-lmi.c
index 9345316b45dbe4..0f2264bb75775c 100644
--- a/drivers/platform/x86/think-lmi.c
+++ b/drivers/platform/x86/think-lmi.c
@@ -175,9 +175,6 @@ MODULE_PARM_DESC(debug_support, "Enable debug command support");
 #define TLMI_SMP_PWD BIT(6) /* System Management */
 #define TLMI_CERT    BIT(7) /* Certificate Based */
 
-#define to_tlmi_pwd_setting(kobj)  container_of(kobj, struct tlmi_pwd_setting, kobj)
-#define to_tlmi_attr_setting(kobj)  container_of(kobj, struct tlmi_attr_setting, kobj)
-
 static const struct tlmi_err_codes tlmi_errs[] = {
 	{"Success", 0},
 	{"Not Supported", -EOPNOTSUPP},
@@ -198,6 +195,16 @@ static struct think_lmi tlmi_priv;
 static const struct class *fw_attr_class;
 static DEFINE_MUTEX(tlmi_mutex);
 
+static inline struct tlmi_pwd_setting *to_tlmi_pwd_setting(struct kobject *kobj)
+{
+	return container_of(kobj, struct tlmi_pwd_setting, kobj);
+}
+
+static inline struct tlmi_attr_setting *to_tlmi_attr_setting(struct kobject *kobj)
+{
+	return container_of(kobj, struct tlmi_attr_setting, kobj);
+}
+
 /* Convert BIOS WMI error string to suitable error code */
 static int tlmi_errstr_to_err(const char *errstr)
 {
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 82429e59999da2..1150a5c434a603 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -45,6 +45,7 @@
 #include <linux/hwmon-sysfs.h>
 #include <linux/init.h>
 #include <linux/input.h>
+#include <linux/input/sparse-keymap.h>
 #include <linux/jiffies.h>
 #include <linux/kernel.h>
 #include <linux/kthread.h>
@@ -157,16 +158,32 @@ enum {
 
 /* HKEY events */
 enum tpacpi_hkey_event_t {
-	/* Hotkey-related */
-	TP_HKEY_EV_HOTKEY_BASE		= 0x1001, /* first hotkey (FN+F1) */
+	/* Original hotkeys */
+	TP_HKEY_EV_ORIG_KEY_START	= 0x1001, /* First hotkey (FN+F1) */
 	TP_HKEY_EV_BRGHT_UP		= 0x1010, /* Brightness up */
 	TP_HKEY_EV_BRGHT_DOWN		= 0x1011, /* Brightness down */
 	TP_HKEY_EV_KBD_LIGHT		= 0x1012, /* Thinklight/kbd backlight */
 	TP_HKEY_EV_VOL_UP		= 0x1015, /* Volume up or unmute */
 	TP_HKEY_EV_VOL_DOWN		= 0x1016, /* Volume down or unmute */
 	TP_HKEY_EV_VOL_MUTE		= 0x1017, /* Mixer output mute */
+	TP_HKEY_EV_ORIG_KEY_END		= 0x1020, /* Last original hotkey code */
+
+	/* Adaptive keyboard (2014 X1 Carbon) */
+	TP_HKEY_EV_DFR_CHANGE_ROW	= 0x1101, /* Change adaptive kbd Fn row mode */
+	TP_HKEY_EV_DFR_S_QUICKVIEW_ROW	= 0x1102, /* Set adap. kbd Fn row to function mode */
+	TP_HKEY_EV_ADAPTIVE_KEY_START	= 0x1103, /* First hotkey code on adaptive kbd */
+	TP_HKEY_EV_ADAPTIVE_KEY_END	= 0x1116, /* Last hotkey code on adaptive kbd */
+
+	/* Extended hotkey events in 2017+ models */
+	TP_HKEY_EV_EXTENDED_KEY_START	= 0x1300, /* First extended hotkey code */
 	TP_HKEY_EV_PRIVACYGUARD_TOGGLE	= 0x130f, /* Toggle priv.guard on/off */
+	TP_HKEY_EV_EXTENDED_KEY_END	= 0x1319, /* Last extended hotkey code using
+						   * hkey -> scancode translation for
+						   * compat. Later codes are entered
+						   * directly in the sparse-keymap.
+						   */
 	TP_HKEY_EV_AMT_TOGGLE		= 0x131a, /* Toggle AMT on/off */
+	TP_HKEY_EV_DOUBLETAP_TOGGLE	= 0x131c, /* Toggle trackpoint doubletap on/off */
 	TP_HKEY_EV_PROFILE_TOGGLE	= 0x131f, /* Toggle platform profile */
 
 	/* Reasons for waking up from S3/S4 */
@@ -232,6 +249,9 @@ enum tpacpi_hkey_event_t {
 
 	/* Misc */
 	TP_HKEY_EV_RFKILL_CHANGED	= 0x7000, /* rfkill switch changed */
+
+	/* Misc2 */
+	TP_HKEY_EV_TRACK_DOUBLETAP      = 0x8036, /* trackpoint doubletap */
 };
 
 /****************************************************************************
@@ -353,6 +373,7 @@ static struct {
 	u32 hotkey_poll_active:1;
 	u32 has_adaptive_kbd:1;
 	u32 kbd_lang:1;
+	u32 trackpoint_doubletap:1;
 	struct quirk_entry *quirks;
 } tp_features;
 
@@ -1744,15 +1765,15 @@ enum {	/* hot key scan codes (derived from ACPI DSDT) */
 	TP_ACPI_HOTKEYSCAN_THINKPAD,
 	TP_ACPI_HOTKEYSCAN_UNK1,
 	TP_ACPI_HOTKEYSCAN_UNK2,
-	TP_ACPI_HOTKEYSCAN_UNK3,
+	TP_ACPI_HOTKEYSCAN_MICMUTE,
 	TP_ACPI_HOTKEYSCAN_UNK4,
-	TP_ACPI_HOTKEYSCAN_UNK5,
-	TP_ACPI_HOTKEYSCAN_UNK6,
-	TP_ACPI_HOTKEYSCAN_UNK7,
-	TP_ACPI_HOTKEYSCAN_UNK8,
+	TP_ACPI_HOTKEYSCAN_CONFIG,
+	TP_ACPI_HOTKEYSCAN_SEARCH,
+	TP_ACPI_HOTKEYSCAN_SCALE,
+	TP_ACPI_HOTKEYSCAN_FILE,
 
 	/* Adaptive keyboard keycodes */
-	TP_ACPI_HOTKEYSCAN_ADAPTIVE_START,
+	TP_ACPI_HOTKEYSCAN_ADAPTIVE_START, /* 32 / 0x20 */
 	TP_ACPI_HOTKEYSCAN_MUTE2        = TP_ACPI_HOTKEYSCAN_ADAPTIVE_START,
 	TP_ACPI_HOTKEYSCAN_BRIGHTNESS_ZERO,
 	TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL,
@@ -1764,7 +1785,7 @@ enum {	/* hot key scan codes (derived from ACPI DSDT) */
 	TP_ACPI_HOTKEYSCAN_UNK11,
 	TP_ACPI_HOTKEYSCAN_UNK12,
 	TP_ACPI_HOTKEYSCAN_UNK13,
-	TP_ACPI_HOTKEYSCAN_CONFIG,
+	TP_ACPI_HOTKEYSCAN_CONFIG2,
 	TP_ACPI_HOTKEYSCAN_NEW_TAB,
 	TP_ACPI_HOTKEYSCAN_RELOAD,
 	TP_ACPI_HOTKEYSCAN_BACK,
@@ -1775,7 +1796,7 @@ enum {	/* hot key scan codes (derived from ACPI DSDT) */
 	TP_ACPI_HOTKEYSCAN_ROTATE_DISPLAY,
 
 	/* Lenovo extended keymap, starting at 0x1300 */
-	TP_ACPI_HOTKEYSCAN_EXTENDED_START,
+	TP_ACPI_HOTKEYSCAN_EXTENDED_START, /* 52 / 0x34 */
 	/* first new observed key (star, favorites) is 0x1311 */
 	TP_ACPI_HOTKEYSCAN_STAR = 69,
 	TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL2,
@@ -1786,9 +1807,6 @@ enum {	/* hot key scan codes (derived from ACPI DSDT) */
 	TP_ACPI_HOTKEYSCAN_NOTIFICATION_CENTER,
 	TP_ACPI_HOTKEYSCAN_PICKUP_PHONE,
 	TP_ACPI_HOTKEYSCAN_HANGUP_PHONE,
-
-	/* Hotkey keymap size */
-	TPACPI_HOTKEY_MAP_LEN
 };
 
 enum {	/* Keys/events available through NVRAM polling */
@@ -1901,10 +1919,7 @@ static u32 hotkey_driver_mask;		/* events needed by the driver */
 static u32 hotkey_user_mask;		/* events visible to userspace */
 static u32 hotkey_acpi_mask;		/* events enabled in firmware */
 
-static u16 *hotkey_keycode_map;
-
-static void tpacpi_driver_event(const unsigned int hkey_event);
-static void hotkey_driver_event(const unsigned int scancode);
+static bool tpacpi_driver_event(const unsigned int hkey_event);
 static void hotkey_poll_setup(const bool may_warn);
 
 /* HKEY.MHKG() return bits */
@@ -2236,32 +2251,56 @@ static void tpacpi_input_send_tabletsw(void)
 	}
 }
 
-/* Do NOT call without validating scancode first */
-static void tpacpi_input_send_key(const unsigned int scancode)
+static bool tpacpi_input_send_key(const u32 hkey, bool *send_acpi_ev)
 {
-	const unsigned int keycode = hotkey_keycode_map[scancode];
-
-	if (keycode != KEY_RESERVED) {
-		mutex_lock(&tpacpi_inputdev_send_mutex);
+	bool known_ev;
+	u32 scancode;
 
-		input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode);
-		input_report_key(tpacpi_inputdev, keycode, 1);
-		input_sync(tpacpi_inputdev);
+	if (tpacpi_driver_event(hkey))
+		return true;
 
-		input_event(tpacpi_inputdev, EV_MSC, MSC_SCAN, scancode);
-		input_report_key(tpacpi_inputdev, keycode, 0);
-		input_sync(tpacpi_inputdev);
+	/*
+	 * Before the conversion to using the sparse-keymap helpers the driver used to
+	 * map the hkey event codes to 0x00 - 0x4d scancodes so that a straight scancode
+	 * indexed array could be used to map scancodes to keycodes:
+	 *
+	 * 0x1001 - 0x1020  ->  0x00 - 0x1f  (Original ThinkPad events)
+	 * 0x1103 - 0x1116  ->  0x20 - 0x33  (Adaptive keyboard, 2014 X1 Carbon)
+	 * 0x1300 - 0x1319  ->  0x34 - 0x4d  (Additional keys send in 2017+ models)
+	 *
+	 * The sparse-keymap tables still use these scancodes for these ranges to
+	 * preserve userspace API compatibility (e.g. hwdb keymappings).
+	 */
+	if (hkey >= TP_HKEY_EV_ORIG_KEY_START &&
+	    hkey <= TP_HKEY_EV_ORIG_KEY_END) {
+		scancode = hkey - TP_HKEY_EV_ORIG_KEY_START;
+		if (!(hotkey_user_mask & (1 << scancode)))
+			return true; /* Not reported but still a known code */
+	} else if (hkey >= TP_HKEY_EV_ADAPTIVE_KEY_START &&
+		   hkey <= TP_HKEY_EV_ADAPTIVE_KEY_END) {
+		scancode = hkey - TP_HKEY_EV_ADAPTIVE_KEY_START +
+			   TP_ACPI_HOTKEYSCAN_ADAPTIVE_START;
+	} else if (hkey >= TP_HKEY_EV_EXTENDED_KEY_START &&
+		   hkey <= TP_HKEY_EV_EXTENDED_KEY_END) {
+		scancode = hkey - TP_HKEY_EV_EXTENDED_KEY_START +
+			   TP_ACPI_HOTKEYSCAN_EXTENDED_START;
+	} else {
+		/*
+		 * Do not send ACPI netlink events for unknown hotkeys, to
+		 * avoid userspace starting to rely on them. Instead these
+		 * should be added to the keymap to send evdev events.
+		 */
+		if (send_acpi_ev)
+			*send_acpi_ev = false;
 
-		mutex_unlock(&tpacpi_inputdev_send_mutex);
+		scancode = hkey;
 	}
-}
 
-/* Do NOT call without validating scancode first */
-static void tpacpi_input_send_key_masked(const unsigned int scancode)
-{
-	hotkey_driver_event(scancode);
-	if (hotkey_user_mask & (1 << scancode))
-		tpacpi_input_send_key(scancode);
+	mutex_lock(&tpacpi_inputdev_send_mutex);
+	known_ev = sparse_keymap_report_event(tpacpi_inputdev, scancode, 1, true);
+	mutex_unlock(&tpacpi_inputdev_send_mutex);
+
+	return known_ev;
 }
 
 #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
@@ -2270,7 +2309,7 @@ static struct tp_acpi_drv_struct ibm_hotkey_acpidriver;
 /* Do NOT call without validating scancode first */
 static void tpacpi_hotkey_send_key(unsigned int scancode)
 {
-	tpacpi_input_send_key_masked(scancode);
+	tpacpi_input_send_key(TP_HKEY_EV_ORIG_KEY_START + scancode, NULL);
 }
 
 static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m)
@@ -2575,6 +2614,9 @@ static void hotkey_poll_setup_safe(const bool __unused)
 {
 }
 
+static void hotkey_poll_stop_sync(void)
+{
+}
 #endif /* CONFIG_THINKPAD_ACPI_HOTKEY_POLL */
 
 static int hotkey_inputdev_open(struct input_dev *dev)
@@ -2679,7 +2721,7 @@ static ssize_t hotkey_bios_enabled_show(struct device *dev,
 			   struct device_attribute *attr,
 			   char *buf)
 {
-	return sprintf(buf, "0\n");
+	return sysfs_emit(buf, "0\n");
 }
 
 static DEVICE_ATTR_RO(hotkey_bios_enabled);
@@ -3044,11 +3086,8 @@ static void tpacpi_send_radiosw_update(void)
 
 static void hotkey_exit(void)
 {
-#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
 	mutex_lock(&hotkey_mutex);
 	hotkey_poll_stop_sync();
-	mutex_unlock(&hotkey_mutex);
-#endif
 	dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY,
 		   "restoring original HKEY status and mask\n");
 	/* yes, there is a bitwise or below, we want the
@@ -3057,15 +3096,8 @@ static void hotkey_exit(void)
 	      hotkey_mask_set(hotkey_orig_mask)) |
 	     hotkey_status_set(false)) != 0)
 		pr_err("failed to restore hot key mask to BIOS defaults\n");
-}
 
-static void __init hotkey_unmap(const unsigned int scancode)
-{
-	if (hotkey_keycode_map[scancode] != KEY_RESERVED) {
-		clear_bit(hotkey_keycode_map[scancode],
-			  tpacpi_inputdev->keybit);
-		hotkey_keycode_map[scancode] = KEY_RESERVED;
-	}
+	mutex_unlock(&hotkey_mutex);
 }
 
 /*
@@ -3097,9 +3129,6 @@ static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = {
 	TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */
 };
 
-typedef u16 tpacpi_keymap_entry_t;
-typedef tpacpi_keymap_entry_t tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN];
-
 static int hotkey_init_tablet_mode(void)
 {
 	int in_tablet_mode = 0, res;
@@ -3136,209 +3165,126 @@ static int hotkey_init_tablet_mode(void)
 	return in_tablet_mode;
 }
 
-static int __init hotkey_init(struct ibm_init_struct *iibm)
-{
-	/* Requirements for changing the default keymaps:
-	 *
-	 * 1. Many of the keys are mapped to KEY_RESERVED for very
-	 *    good reasons.  Do not change them unless you have deep
-	 *    knowledge on the IBM and Lenovo ThinkPad firmware for
-	 *    the various ThinkPad models.  The driver behaves
-	 *    differently for KEY_RESERVED: such keys have their
-	 *    hot key mask *unset* in mask_recommended, and also
-	 *    in the initial hot key mask programmed into the
-	 *    firmware at driver load time, which means the firm-
-	 *    ware may react very differently if you change them to
-	 *    something else;
-	 *
-	 * 2. You must be subscribed to the linux-thinkpad and
-	 *    ibm-acpi-devel mailing lists, and you should read the
-	 *    list archives since 2007 if you want to change the
-	 *    keymaps.  This requirement exists so that you will
-	 *    know the past history of problems with the thinkpad-
-	 *    acpi driver keymaps, and also that you will be
-	 *    listening to any bug reports;
-	 *
-	 * 3. Do not send thinkpad-acpi specific patches directly to
-	 *    for merging, *ever*.  Send them to the linux-acpi
-	 *    mailinglist for comments.  Merging is to be done only
-	 *    through acpi-test and the ACPI maintainer.
-	 *
-	 * If the above is too much to ask, don't change the keymap.
-	 * Ask the thinkpad-acpi maintainer to do it, instead.
+static const struct key_entry keymap_ibm[] __initconst = {
+	/* Original hotkey mappings translated scancodes 0x00 - 0x1f */
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF1, { KEY_FN_F1 } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF2, { KEY_BATTERY } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF3, { KEY_COFFEE } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF4, { KEY_SLEEP } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF5, { KEY_WLAN } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF6, { KEY_FN_F6 } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF7, { KEY_SWITCHVIDEOMODE } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF8, { KEY_FN_F8 } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF9, { KEY_FN_F9 } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF10, { KEY_FN_F10 } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF11, { KEY_FN_F11 } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF12, { KEY_SUSPEND } },
+	/* Brightness: firmware always reacts, suppressed through hotkey_reserved_mask. */
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNHOME, { KEY_BRIGHTNESSUP } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNEND, { KEY_BRIGHTNESSDOWN } },
+	/* Thinklight: firmware always reacts, suppressed through hotkey_reserved_mask. */
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNPAGEUP, { KEY_KBDILLUMTOGGLE } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNSPACE, { KEY_ZOOM } },
+	/*
+	 * Volume: firmware always reacts and reprograms the built-in *extra* mixer.
+	 * Suppressed by default through hotkey_reserved_mask.
 	 */
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_VOLUMEUP, { KEY_VOLUMEUP } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, { KEY_VOLUMEDOWN } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_MUTE, { KEY_MUTE } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_THINKPAD, { KEY_VENDOR } },
+	{ KE_END }
+};
+
+static const struct key_entry keymap_lenovo[] __initconst = {
+	/* Original hotkey mappings translated scancodes 0x00 - 0x1f */
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF1, { KEY_FN_F1 } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF2, { KEY_COFFEE } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF3, { KEY_BATTERY } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF4, { KEY_SLEEP } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF5, { KEY_WLAN } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF6, { KEY_CAMERA, } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF7, { KEY_SWITCHVIDEOMODE } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF8, { KEY_FN_F8 } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF9, { KEY_FN_F9 } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF10, { KEY_FN_F10 } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF11, { KEY_FN_F11 } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF12, { KEY_SUSPEND } },
+	/*
+	 * These should be enabled --only-- when ACPI video is disabled and
+	 * are handled in a special way by the init code.
+	 */
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNHOME, { KEY_BRIGHTNESSUP } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNEND, { KEY_BRIGHTNESSDOWN } },
+	/* Suppressed by default through hotkey_reserved_mask. */
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNPAGEUP, { KEY_KBDILLUMTOGGLE } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNSPACE, { KEY_ZOOM } },
+	/*
+	 * Volume: z60/z61, T60 (BIOS version?): firmware always reacts and
+	 * reprograms the built-in *extra* mixer.
+	 * T60?, T61, R60?, R61: firmware and EC tries to send these over
+	 * the regular keyboard (not through tpacpi). There are still weird bugs
+	 * re. MUTE. May cause the BIOS to interfere with the HDA mixer.
+	 * Suppressed by default through hotkey_reserved_mask.
+	 */
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_VOLUMEUP, { KEY_VOLUMEUP } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, { KEY_VOLUMEDOWN } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_MUTE, { KEY_MUTE } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_THINKPAD, { KEY_VENDOR } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_MICMUTE, { KEY_MICMUTE } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_CONFIG, { KEY_CONFIG } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_SEARCH, { KEY_SEARCH } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_SCALE, { KEY_SCALE } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FILE, { KEY_FILE } },
+	/* Adaptive keyboard mappings for Carbon X1 2014 translated scancodes 0x20 - 0x33 */
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_MUTE2, { KEY_RESERVED } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_BRIGHTNESS_ZERO, { KEY_BRIGHTNESS_MIN } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL, { KEY_SELECTIVE_SCREENSHOT } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_CLOUD, { KEY_XFER } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_UNK9, { KEY_RESERVED } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_VOICE, { KEY_VOICECOMMAND } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_UNK10, { KEY_RESERVED } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_GESTURES, { KEY_RESERVED } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_UNK11, { KEY_RESERVED } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_UNK12, { KEY_RESERVED } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_UNK13, { KEY_RESERVED } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_CONFIG2, { KEY_CONFIG } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_NEW_TAB, { KEY_RESERVED } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_RELOAD, { KEY_REFRESH } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_BACK, { KEY_BACK } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_MIC_DOWN, { KEY_RESERVED } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_MIC_UP, { KEY_RESERVED } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_MIC_CANCELLATION, { KEY_RESERVED } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_CAMERA_MODE, { KEY_RESERVED } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_ROTATE_DISPLAY, { KEY_RESERVED } },
+	/* Extended hotkeys mappings translated scancodes 0x34 - 0x4d */
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_STAR, { KEY_BOOKMARKS } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL2, { KEY_SELECTIVE_SCREENSHOT } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_CALCULATOR, { KEY_CALC } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_BLUETOOTH, { KEY_BLUETOOTH } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_KEYBOARD, { KEY_KEYBOARD } },
+	/* Used by "Lenovo Quick Clean" */
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_FN_RIGHT_SHIFT, { KEY_FN_RIGHT_SHIFT } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_NOTIFICATION_CENTER, { KEY_NOTIFICATION_CENTER } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_PICKUP_PHONE, { KEY_PICKUP_PHONE } },
+	{ KE_KEY, TP_ACPI_HOTKEYSCAN_HANGUP_PHONE, { KEY_HANGUP_PHONE } },
+	/*
+	 * All mapping below are for raw untranslated hkey event codes mapped directly
+	 * after switching to sparse keymap support. The mappings above use translated
+	 * scancodes to preserve uAPI compatibility, see tpacpi_input_send_key().
+	 */
+	{ KE_KEY, 0x131d, { KEY_VENDOR } }, /* System debug info, similar to old ThinkPad key */
+	{ KE_KEY, TP_HKEY_EV_TRACK_DOUBLETAP /* 0x8036 */, { KEY_PROG4 } },
+	{ KE_END }
+};
 
+static int __init hotkey_init(struct ibm_init_struct *iibm)
+{
 	enum keymap_index {
 		TPACPI_KEYMAP_IBM_GENERIC = 0,
 		TPACPI_KEYMAP_LENOVO_GENERIC,
 	};
 
-	static const tpacpi_keymap_t tpacpi_keymaps[] __initconst = {
-	/* Generic keymap for IBM ThinkPads */
-	[TPACPI_KEYMAP_IBM_GENERIC] = {
-		/* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */
-		KEY_FN_F1,	KEY_BATTERY,	KEY_COFFEE,	KEY_SLEEP,
-		KEY_WLAN,	KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8,
-		KEY_FN_F9,	KEY_FN_F10,	KEY_FN_F11,	KEY_SUSPEND,
-
-		/* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */
-		KEY_UNKNOWN,	/* 0x0C: FN+BACKSPACE */
-		KEY_UNKNOWN,	/* 0x0D: FN+INSERT */
-		KEY_UNKNOWN,	/* 0x0E: FN+DELETE */
-
-		/* brightness: firmware always reacts to them */
-		KEY_RESERVED,	/* 0x0F: FN+HOME (brightness up) */
-		KEY_RESERVED,	/* 0x10: FN+END (brightness down) */
-
-		/* Thinklight: firmware always react to it */
-		KEY_RESERVED,	/* 0x11: FN+PGUP (thinklight toggle) */
-
-		KEY_UNKNOWN,	/* 0x12: FN+PGDOWN */
-		KEY_ZOOM,	/* 0x13: FN+SPACE (zoom) */
-
-		/* Volume: firmware always react to it and reprograms
-		 * the built-in *extra* mixer.  Never map it to control
-		 * another mixer by default. */
-		KEY_RESERVED,	/* 0x14: VOLUME UP */
-		KEY_RESERVED,	/* 0x15: VOLUME DOWN */
-		KEY_RESERVED,	/* 0x16: MUTE */
-
-		KEY_VENDOR,	/* 0x17: Thinkpad/AccessIBM/Lenovo */
-
-		/* (assignments unknown, please report if found) */
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-
-		/* No assignments, only used for Adaptive keyboards. */
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-
-		/* No assignment, used for newer Lenovo models */
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-		KEY_UNKNOWN, KEY_UNKNOWN
-
-		},
-
-	/* Generic keymap for Lenovo ThinkPads */
-	[TPACPI_KEYMAP_LENOVO_GENERIC] = {
-		/* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */
-		KEY_FN_F1,	KEY_COFFEE,	KEY_BATTERY,	KEY_SLEEP,
-		KEY_WLAN,	KEY_CAMERA, KEY_SWITCHVIDEOMODE, KEY_FN_F8,
-		KEY_FN_F9,	KEY_FN_F10,	KEY_FN_F11,	KEY_SUSPEND,
-
-		/* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */
-		KEY_UNKNOWN,	/* 0x0C: FN+BACKSPACE */
-		KEY_UNKNOWN,	/* 0x0D: FN+INSERT */
-		KEY_UNKNOWN,	/* 0x0E: FN+DELETE */
-
-		/* These should be enabled --only-- when ACPI video
-		 * is disabled (i.e. in "vendor" mode), and are handled
-		 * in a special way by the init code */
-		KEY_BRIGHTNESSUP,	/* 0x0F: FN+HOME (brightness up) */
-		KEY_BRIGHTNESSDOWN,	/* 0x10: FN+END (brightness down) */
-
-		KEY_RESERVED,	/* 0x11: FN+PGUP (thinklight toggle) */
-
-		KEY_UNKNOWN,	/* 0x12: FN+PGDOWN */
-		KEY_ZOOM,	/* 0x13: FN+SPACE (zoom) */
-
-		/* Volume: z60/z61, T60 (BIOS version?): firmware always
-		 * react to it and reprograms the built-in *extra* mixer.
-		 * Never map it to control another mixer by default.
-		 *
-		 * T60?, T61, R60?, R61: firmware and EC tries to send
-		 * these over the regular keyboard, so these are no-ops,
-		 * but there are still weird bugs re. MUTE, so do not
-		 * change unless you get test reports from all Lenovo
-		 * models.  May cause the BIOS to interfere with the
-		 * HDA mixer.
-		 */
-		KEY_RESERVED,	/* 0x14: VOLUME UP */
-		KEY_RESERVED,	/* 0x15: VOLUME DOWN */
-		KEY_RESERVED,	/* 0x16: MUTE */
-
-		KEY_VENDOR,	/* 0x17: Thinkpad/AccessIBM/Lenovo */
-
-		/* (assignments unknown, please report if found) */
-		KEY_UNKNOWN, KEY_UNKNOWN,
-
-		/*
-		 * The mic mute button only sends 0x1a.  It does not
-		 * automatically mute the mic or change the mute light.
-		 */
-		KEY_MICMUTE,	/* 0x1a: Mic mute (since ?400 or so) */
-
-		/* (assignments unknown, please report if found) */
-		KEY_UNKNOWN,
-
-		/* Extra keys in use since the X240 / T440 / T540 */
-		KEY_CONFIG, KEY_SEARCH, KEY_SCALE, KEY_FILE,
-
-		/*
-		 * These are the adaptive keyboard keycodes for Carbon X1 2014.
-		 * The first item in this list is the Mute button which is
-		 * emitted with 0x103 through
-		 * adaptive_keyboard_hotkey_notify_hotkey() when the sound
-		 * symbol is held.
-		 * We'll need to offset those by 0x20.
-		 */
-		KEY_RESERVED,        /* Mute held, 0x103 */
-		KEY_BRIGHTNESS_MIN,  /* Backlight off */
-		KEY_RESERVED,        /* Clipping tool */
-		KEY_RESERVED,        /* Cloud */
-		KEY_RESERVED,
-		KEY_VOICECOMMAND,    /* Voice */
-		KEY_RESERVED,
-		KEY_RESERVED,        /* Gestures */
-		KEY_RESERVED,
-		KEY_RESERVED,
-		KEY_RESERVED,
-		KEY_CONFIG,          /* Settings */
-		KEY_RESERVED,        /* New tab */
-		KEY_REFRESH,         /* Reload */
-		KEY_BACK,            /* Back */
-		KEY_RESERVED,        /* Microphone down */
-		KEY_RESERVED,        /* Microphone up */
-		KEY_RESERVED,        /* Microphone cancellation */
-		KEY_RESERVED,        /* Camera mode */
-		KEY_RESERVED,        /* Rotate display, 0x116 */
-
-		/*
-		 * These are found in 2017 models (e.g. T470s, X270).
-		 * The lowest known value is 0x311, which according to
-		 * the manual should launch a user defined favorite
-		 * application.
-		 *
-		 * The offset for these is TP_ACPI_HOTKEYSCAN_EXTENDED_START,
-		 * corresponding to 0x34.
-		 */
-
-		/* (assignments unknown, please report if found) */
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-		KEY_UNKNOWN,
-
-		KEY_BOOKMARKS,			/* Favorite app, 0x311 */
-		KEY_SELECTIVE_SCREENSHOT,	/* Clipping tool */
-		KEY_CALC,			/* Calculator (above numpad, P52) */
-		KEY_BLUETOOTH,			/* Bluetooth */
-		KEY_KEYBOARD,			/* Keyboard, 0x315 */
-		KEY_FN_RIGHT_SHIFT,		/* Fn + right Shift */
-		KEY_NOTIFICATION_CENTER,	/* Notification Center */
-		KEY_PICKUP_PHONE,		/* Answer incoming call */
-		KEY_HANGUP_PHONE,		/* Decline incoming call */
-		},
-	};
-
 	static const struct tpacpi_quirk tpacpi_keymap_qtable[] __initconst = {
 		/* Generic maps (fallback) */
 		{
@@ -3353,17 +3299,11 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
 		},
 	};
 
-#define TPACPI_HOTKEY_MAP_SIZE		sizeof(tpacpi_keymap_t)
-#define TPACPI_HOTKEY_MAP_TYPESIZE	sizeof(tpacpi_keymap_entry_t)
-
-	int res, i;
-	int status;
-	int hkeyv;
+	unsigned long keymap_id, quirks;
+	const struct key_entry *keymap;
 	bool radiosw_state  = false;
 	bool tabletsw_state = false;
-
-	unsigned long quirks;
-	unsigned long keymap_id;
+	int hkeyv, res, status;
 
 	vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
 			"initializing hotkey subdriver\n");
@@ -3503,30 +3443,29 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
 	/* Set up key map */
 	keymap_id = tpacpi_check_quirks(tpacpi_keymap_qtable,
 					ARRAY_SIZE(tpacpi_keymap_qtable));
-	BUG_ON(keymap_id >= ARRAY_SIZE(tpacpi_keymaps));
 	dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
 		   "using keymap number %lu\n", keymap_id);
 
-	hotkey_keycode_map = kmemdup(&tpacpi_keymaps[keymap_id],
-			TPACPI_HOTKEY_MAP_SIZE,	GFP_KERNEL);
-	if (!hotkey_keycode_map) {
-		pr_err("failed to allocate memory for key map\n");
-		return -ENOMEM;
+	/* Keys which should be reserved on both IBM and Lenovo models */
+	hotkey_reserved_mask = TP_ACPI_HKEY_KBD_LIGHT_MASK |
+			       TP_ACPI_HKEY_VOLUP_MASK |
+			       TP_ACPI_HKEY_VOLDWN_MASK |
+			       TP_ACPI_HKEY_MUTE_MASK;
+	/*
+	 * Reserve brightness up/down unconditionally on IBM models, on Lenovo
+	 * models these are disabled based on acpi_video_get_backlight_type().
+	 */
+	if (keymap_id == TPACPI_KEYMAP_IBM_GENERIC) {
+		hotkey_reserved_mask |= TP_ACPI_HKEY_BRGHTUP_MASK |
+					TP_ACPI_HKEY_BRGHTDWN_MASK;
+		keymap = keymap_ibm;
+	} else {
+		keymap = keymap_lenovo;
 	}
 
-	input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN);
-	tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE;
-	tpacpi_inputdev->keycodemax = TPACPI_HOTKEY_MAP_LEN;
-	tpacpi_inputdev->keycode = hotkey_keycode_map;
-	for (i = 0; i < TPACPI_HOTKEY_MAP_LEN; i++) {
-		if (hotkey_keycode_map[i] != KEY_RESERVED) {
-			input_set_capability(tpacpi_inputdev, EV_KEY,
-						hotkey_keycode_map[i]);
-		} else {
-			if (i < sizeof(hotkey_reserved_mask)*8)
-				hotkey_reserved_mask |= 1 << i;
-		}
-	}
+	res = sparse_keymap_setup(tpacpi_inputdev, keymap, NULL);
+	if (res)
+		return res;
 
 	if (tp_features.hotkey_wlsw) {
 		input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL);
@@ -3549,11 +3488,8 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
 		/* Disable brightness up/down on Lenovo thinkpads when
 		 * ACPI is handling them, otherwise it is plain impossible
 		 * for userspace to do something even remotely sane */
-		hotkey_reserved_mask |=
-			(1 << TP_ACPI_HOTKEYSCAN_FNHOME)
-			| (1 << TP_ACPI_HOTKEYSCAN_FNEND);
-		hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNHOME);
-		hotkey_unmap(TP_ACPI_HOTKEYSCAN_FNEND);
+		hotkey_reserved_mask |= TP_ACPI_HKEY_BRGHTUP_MASK |
+					TP_ACPI_HKEY_BRGHTDWN_MASK;
 	}
 
 #ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
@@ -3593,6 +3529,9 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
 
 	hotkey_poll_setup_safe(true);
 
+	/* Enable doubletap by default */
+	tp_features.trackpoint_doubletap = 1;
+
 	return 0;
 }
 
@@ -3610,10 +3549,6 @@ static const int adaptive_keyboard_modes[] = {
 	FUNCTION_MODE
 };
 
-#define DFR_CHANGE_ROW			0x101
-#define DFR_SHOW_QUICKVIEW_ROW		0x102
-#define FIRST_ADAPTIVE_KEY		0x103
-
 /* press Fn key a while second, it will switch to Function Mode. Then
  * release Fn key, previous mode be restored.
  */
@@ -3664,153 +3599,67 @@ static int adaptive_keyboard_get_next_mode(int mode)
 	return adaptive_keyboard_modes[i];
 }
 
-static bool adaptive_keyboard_hotkey_notify_hotkey(unsigned int scancode)
+static void adaptive_keyboard_change_row(void)
 {
-	int current_mode = 0;
-	int new_mode = 0;
-	int keycode;
-
-	switch (scancode) {
-	case DFR_CHANGE_ROW:
-		if (adaptive_keyboard_mode_is_saved) {
-			new_mode = adaptive_keyboard_prev_mode;
-			adaptive_keyboard_mode_is_saved = false;
-		} else {
-			current_mode = adaptive_keyboard_get_mode();
-			if (current_mode < 0)
-				return false;
-			new_mode = adaptive_keyboard_get_next_mode(
-					current_mode);
-		}
-
-		if (adaptive_keyboard_set_mode(new_mode) < 0)
-			return false;
-
-		return true;
-
-	case DFR_SHOW_QUICKVIEW_ROW:
-		current_mode = adaptive_keyboard_get_mode();
-		if (current_mode < 0)
-			return false;
-
-		adaptive_keyboard_prev_mode = current_mode;
-		adaptive_keyboard_mode_is_saved = true;
+	int mode;
 
-		if (adaptive_keyboard_set_mode (FUNCTION_MODE) < 0)
-			return false;
-		return true;
-
-	default:
-		if (scancode < FIRST_ADAPTIVE_KEY ||
-		    scancode >= FIRST_ADAPTIVE_KEY +
-		    TP_ACPI_HOTKEYSCAN_EXTENDED_START -
-		    TP_ACPI_HOTKEYSCAN_ADAPTIVE_START) {
-			pr_info("Unhandled adaptive keyboard key: 0x%x\n",
-				scancode);
-			return false;
-		}
-		keycode = hotkey_keycode_map[scancode - FIRST_ADAPTIVE_KEY +
-					     TP_ACPI_HOTKEYSCAN_ADAPTIVE_START];
-		if (keycode != KEY_RESERVED) {
-			mutex_lock(&tpacpi_inputdev_send_mutex);
-
-			input_report_key(tpacpi_inputdev, keycode, 1);
-			input_sync(tpacpi_inputdev);
-
-			input_report_key(tpacpi_inputdev, keycode, 0);
-			input_sync(tpacpi_inputdev);
-
-			mutex_unlock(&tpacpi_inputdev_send_mutex);
-		}
-		return true;
+	if (adaptive_keyboard_mode_is_saved) {
+		mode = adaptive_keyboard_prev_mode;
+		adaptive_keyboard_mode_is_saved = false;
+	} else {
+		mode = adaptive_keyboard_get_mode();
+		if (mode < 0)
+			return;
+		mode = adaptive_keyboard_get_next_mode(mode);
 	}
+
+	adaptive_keyboard_set_mode(mode);
 }
 
-static bool hotkey_notify_extended_hotkey(const u32 hkey)
+static void adaptive_keyboard_s_quickview_row(void)
 {
-	unsigned int scancode;
+	int mode;
 
-	switch (hkey) {
-	case TP_HKEY_EV_PRIVACYGUARD_TOGGLE:
-	case TP_HKEY_EV_AMT_TOGGLE:
-	case TP_HKEY_EV_PROFILE_TOGGLE:
-		tpacpi_driver_event(hkey);
-		return true;
-	}
+	mode = adaptive_keyboard_get_mode();
+	if (mode < 0)
+		return;
 
-	/* Extended keycodes start at 0x300 and our offset into the map
-	 * TP_ACPI_HOTKEYSCAN_EXTENDED_START. The calculated scancode
-	 * will be positive, but might not be in the correct range.
-	 */
-	scancode = (hkey & 0xfff) - (0x300 - TP_ACPI_HOTKEYSCAN_EXTENDED_START);
-	if (scancode >= TP_ACPI_HOTKEYSCAN_EXTENDED_START &&
-	    scancode < TPACPI_HOTKEY_MAP_LEN) {
-		tpacpi_input_send_key(scancode);
-		return true;
-	}
+	adaptive_keyboard_prev_mode = mode;
+	adaptive_keyboard_mode_is_saved = true;
 
-	return false;
+	adaptive_keyboard_set_mode(FUNCTION_MODE);
 }
 
-static bool hotkey_notify_hotkey(const u32 hkey,
-				 bool *send_acpi_ev,
-				 bool *ignore_acpi_ev)
+/* 0x1000-0x1FFF: key presses */
+static bool hotkey_notify_hotkey(const u32 hkey, bool *send_acpi_ev)
 {
-	/* 0x1000-0x1FFF: key presses */
-	unsigned int scancode = hkey & 0xfff;
-	*send_acpi_ev = true;
-	*ignore_acpi_ev = false;
+	/* Never send ACPI netlink events for original hotkeys (hkey: 0x1001 - 0x1020) */
+	if (hkey >= TP_HKEY_EV_ORIG_KEY_START && hkey <= TP_HKEY_EV_ORIG_KEY_END) {
+		*send_acpi_ev = false;
 
-	/*
-	 * Original events are in the 0x10XX range, the adaptive keyboard
-	 * found in 2014 X1 Carbon emits events are of 0x11XX. In 2017
-	 * models, additional keys are emitted through 0x13XX.
-	 */
-	switch ((hkey >> 8) & 0xf) {
-	case 0:
-		if (scancode > 0 &&
-		    scancode <= TP_ACPI_HOTKEYSCAN_ADAPTIVE_START) {
-			/* HKEY event 0x1001 is scancode 0x00 */
-			scancode--;
-			if (!(hotkey_source_mask & (1 << scancode))) {
-				tpacpi_input_send_key_masked(scancode);
-				*send_acpi_ev = false;
-			} else {
-				*ignore_acpi_ev = true;
-			}
+		/* Original hotkeys may be polled from NVRAM instead */
+		unsigned int scancode = hkey - TP_HKEY_EV_ORIG_KEY_START;
+		if (hotkey_source_mask & (1 << scancode))
 			return true;
-		}
-		break;
-
-	case 1:
-		return adaptive_keyboard_hotkey_notify_hotkey(scancode);
-
-	case 3:
-		return hotkey_notify_extended_hotkey(hkey);
 	}
 
-	return false;
+	return tpacpi_input_send_key(hkey, send_acpi_ev);
 }
 
-static bool hotkey_notify_wakeup(const u32 hkey,
-				 bool *send_acpi_ev,
-				 bool *ignore_acpi_ev)
+/* 0x2000-0x2FFF: Wakeup reason */
+static bool hotkey_notify_wakeup(const u32 hkey, bool *send_acpi_ev)
 {
-	/* 0x2000-0x2FFF: Wakeup reason */
-	*send_acpi_ev = true;
-	*ignore_acpi_ev = false;
-
 	switch (hkey) {
 	case TP_HKEY_EV_WKUP_S3_UNDOCK: /* suspend, undock */
 	case TP_HKEY_EV_WKUP_S4_UNDOCK: /* hibernation, undock */
 		hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK;
-		*ignore_acpi_ev = true;
+		*send_acpi_ev = false;
 		break;
 
 	case TP_HKEY_EV_WKUP_S3_BAYEJ: /* suspend, bay eject */
 	case TP_HKEY_EV_WKUP_S4_BAYEJ: /* hibernation, bay eject */
 		hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ;
-		*ignore_acpi_ev = true;
+		*send_acpi_ev = false;
 		break;
 
 	case TP_HKEY_EV_WKUP_S3_BATLOW: /* Battery on critical low level/S3 */
@@ -3832,14 +3681,9 @@ static bool hotkey_notify_wakeup(const u32 hkey,
 	return true;
 }
 
-static bool hotkey_notify_dockevent(const u32 hkey,
-				 bool *send_acpi_ev,
-				 bool *ignore_acpi_ev)
+/* 0x4000-0x4FFF: dock-related events */
+static bool hotkey_notify_dockevent(const u32 hkey, bool *send_acpi_ev)
 {
-	/* 0x4000-0x4FFF: dock-related events */
-	*send_acpi_ev = true;
-	*ignore_acpi_ev = false;
-
 	switch (hkey) {
 	case TP_HKEY_EV_UNDOCK_ACK:
 		/* ACPI undock operation completed after wakeup */
@@ -3869,7 +3713,6 @@ static bool hotkey_notify_dockevent(const u32 hkey,
 	case TP_HKEY_EV_KBD_COVER_ATTACH:
 	case TP_HKEY_EV_KBD_COVER_DETACH:
 		*send_acpi_ev = false;
-		*ignore_acpi_ev = true;
 		return true;
 
 	default:
@@ -3877,14 +3720,9 @@ static bool hotkey_notify_dockevent(const u32 hkey,
 	}
 }
 
-static bool hotkey_notify_usrevent(const u32 hkey,
-				 bool *send_acpi_ev,
-				 bool *ignore_acpi_ev)
+/* 0x5000-0x5FFF: human interface helpers */
+static bool hotkey_notify_usrevent(const u32 hkey, bool *send_acpi_ev)
 {
-	/* 0x5000-0x5FFF: human interface helpers */
-	*send_acpi_ev = true;
-	*ignore_acpi_ev = false;
-
 	switch (hkey) {
 	case TP_HKEY_EV_PEN_INSERTED:  /* X61t: tablet pen inserted into bay */
 	case TP_HKEY_EV_PEN_REMOVED:   /* X61t: tablet pen removed from bay */
@@ -3901,7 +3739,7 @@ static bool hotkey_notify_usrevent(const u32 hkey,
 	case TP_HKEY_EV_LID_OPEN:	/* Lid opened */
 	case TP_HKEY_EV_BRGHT_CHANGED:	/* brightness changed */
 		/* do not propagate these events */
-		*ignore_acpi_ev = true;
+		*send_acpi_ev = false;
 		return true;
 
 	default:
@@ -3912,14 +3750,9 @@ static bool hotkey_notify_usrevent(const u32 hkey,
 static void thermal_dump_all_sensors(void);
 static void palmsensor_refresh(void);
 
-static bool hotkey_notify_6xxx(const u32 hkey,
-				 bool *send_acpi_ev,
-				 bool *ignore_acpi_ev)
+/* 0x6000-0x6FFF: thermal alarms/notices and keyboard events */
+static bool hotkey_notify_6xxx(const u32 hkey, bool *send_acpi_ev)
 {
-	/* 0x6000-0x6FFF: thermal alarms/notices and keyboard events */
-	*send_acpi_ev = true;
-	*ignore_acpi_ev = false;
-
 	switch (hkey) {
 	case TP_HKEY_EV_THM_TABLE_CHANGED:
 		pr_debug("EC reports: Thermal Table has changed\n");
@@ -3965,14 +3798,12 @@ static bool hotkey_notify_6xxx(const u32 hkey,
 		/* key press events, we just ignore them as long as the EC
 		 * is still reporting them in the normal keyboard stream */
 		*send_acpi_ev = false;
-		*ignore_acpi_ev = true;
 		return true;
 
 	case TP_HKEY_EV_KEY_FN_ESC:
 		/* Get the media key status to force the status LED to update */
 		acpi_evalf(hkey_handle, NULL, "GMKS", "v");
 		*send_acpi_ev = false;
-		*ignore_acpi_ev = true;
 		return true;
 
 	case TP_HKEY_EV_TABLET_CHANGED:
@@ -3996,11 +3827,23 @@ static bool hotkey_notify_6xxx(const u32 hkey,
 	return true;
 }
 
+static bool hotkey_notify_8xxx(const u32 hkey, bool *send_acpi_ev)
+{
+	switch (hkey) {
+	case TP_HKEY_EV_TRACK_DOUBLETAP:
+		if (tp_features.trackpoint_doubletap)
+			tpacpi_input_send_key(hkey, send_acpi_ev);
+
+		return true;
+	default:
+		return false;
+	}
+}
+
 static void hotkey_notify(struct ibm_struct *ibm, u32 event)
 {
 	u32 hkey;
 	bool send_acpi_ev;
-	bool ignore_acpi_ev;
 	bool known_ev;
 
 	if (event != 0x80) {
@@ -4025,18 +3868,16 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
 		}
 
 		send_acpi_ev = true;
-		ignore_acpi_ev = false;
+		known_ev = false;
 
 		switch (hkey >> 12) {
 		case 1:
 			/* 0x1000-0x1FFF: key presses */
-			known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev,
-						 &ignore_acpi_ev);
+			known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev);
 			break;
 		case 2:
 			/* 0x2000-0x2FFF: Wakeup reason */
-			known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev,
-						 &ignore_acpi_ev);
+			known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev);
 			break;
 		case 3:
 			/* 0x3000-0x3FFF: bay-related wakeups */
@@ -4051,38 +3892,34 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
 				/* FIXME: kick libata if SATA link offline */
 				known_ev = true;
 				break;
-			default:
-				known_ev = false;
 			}
 			break;
 		case 4:
 			/* 0x4000-0x4FFF: dock-related events */
-			known_ev = hotkey_notify_dockevent(hkey, &send_acpi_ev,
-						&ignore_acpi_ev);
+			known_ev = hotkey_notify_dockevent(hkey, &send_acpi_ev);
 			break;
 		case 5:
 			/* 0x5000-0x5FFF: human interface helpers */
-			known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev,
-						 &ignore_acpi_ev);
+			known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev);
 			break;
 		case 6:
 			/* 0x6000-0x6FFF: thermal alarms/notices and
 			 *                keyboard events */
-			known_ev = hotkey_notify_6xxx(hkey, &send_acpi_ev,
-						 &ignore_acpi_ev);
+			known_ev = hotkey_notify_6xxx(hkey, &send_acpi_ev);
 			break;
 		case 7:
 			/* 0x7000-0x7FFF: misc */
 			if (tp_features.hotkey_wlsw &&
 					hkey == TP_HKEY_EV_RFKILL_CHANGED) {
 				tpacpi_send_radiosw_update();
-				send_acpi_ev = 0;
+				send_acpi_ev = false;
 				known_ev = true;
-				break;
 			}
-			fallthrough;	/* to default */
-		default:
-			known_ev = false;
+			break;
+		case 8:
+			/* 0x8000-0x8FFF: misc2 */
+			known_ev = hotkey_notify_8xxx(hkey, &send_acpi_ev);
+			break;
 		}
 		if (!known_ev) {
 			pr_notice("unhandled HKEY event 0x%04x\n", hkey);
@@ -4091,7 +3928,7 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
 		}
 
 		/* netlink events */
-		if (!ignore_acpi_ev && send_acpi_ev) {
+		if (send_acpi_ev) {
 			acpi_bus_generate_netlink_event(
 					ibm->acpi->device->pnp.device_class,
 					dev_name(&ibm->acpi->device->dev),
@@ -9789,7 +9626,7 @@ static ssize_t tpacpi_battery_show(int what,
 		battery = BAT_PRIMARY;
 	if (tpacpi_battery_get(what, battery, &ret))
 		return -ENODEV;
-	return sprintf(buf, "%d\n", ret);
+	return sysfs_emit(buf, "%d\n", ret);
 }
 
 static ssize_t charge_control_start_threshold_show(struct device *device,
@@ -11126,92 +10963,93 @@ static struct platform_driver tpacpi_hwmon_pdriver = {
  * HKEY event callout for other subdrivers go here
  * (yes, it is ugly, but it is quick, safe, and gets the job done
  */
-static void tpacpi_driver_event(const unsigned int hkey_event)
+static bool tpacpi_driver_event(const unsigned int hkey_event)
 {
-	if (ibm_backlight_device) {
-		switch (hkey_event) {
-		case TP_HKEY_EV_BRGHT_UP:
-		case TP_HKEY_EV_BRGHT_DOWN:
+	switch (hkey_event) {
+	case TP_HKEY_EV_BRGHT_UP:
+	case TP_HKEY_EV_BRGHT_DOWN:
+		if (ibm_backlight_device)
 			tpacpi_brightness_notify_change();
-		}
-	}
-	if (alsa_card) {
-		switch (hkey_event) {
-		case TP_HKEY_EV_VOL_UP:
-		case TP_HKEY_EV_VOL_DOWN:
-		case TP_HKEY_EV_VOL_MUTE:
+		/*
+		 * Key press events are suppressed by default hotkey_user_mask
+		 * and should still be reported if explicitly requested.
+		 */
+		return false;
+	case TP_HKEY_EV_VOL_UP:
+	case TP_HKEY_EV_VOL_DOWN:
+	case TP_HKEY_EV_VOL_MUTE:
+		if (alsa_card)
 			volume_alsa_notify_change();
-		}
-	}
-	if (tp_features.kbdlight && hkey_event == TP_HKEY_EV_KBD_LIGHT) {
-		enum led_brightness brightness;
 
-		mutex_lock(&kbdlight_mutex);
+		/* Key events are suppressed by default hotkey_user_mask */
+		return false;
+	case TP_HKEY_EV_KBD_LIGHT:
+		if (tp_features.kbdlight) {
+			enum led_brightness brightness;
 
-		/*
-		 * Check the brightness actually changed, setting the brightness
-		 * through kbdlight_set_level() also triggers this event.
-		 */
-		brightness = kbdlight_sysfs_get(NULL);
-		if (kbdlight_brightness != brightness) {
-			kbdlight_brightness = brightness;
-			led_classdev_notify_brightness_hw_changed(
-				&tpacpi_led_kbdlight.led_classdev, brightness);
-		}
+			mutex_lock(&kbdlight_mutex);
 
-		mutex_unlock(&kbdlight_mutex);
-	}
+			/*
+			 * Check the brightness actually changed, setting the brightness
+			 * through kbdlight_set_level() also triggers this event.
+			 */
+			brightness = kbdlight_sysfs_get(NULL);
+			if (kbdlight_brightness != brightness) {
+				kbdlight_brightness = brightness;
+				led_classdev_notify_brightness_hw_changed(
+					&tpacpi_led_kbdlight.led_classdev, brightness);
+			}
 
-	if (hkey_event == TP_HKEY_EV_THM_CSM_COMPLETED) {
+			mutex_unlock(&kbdlight_mutex);
+		}
+		/* Key events are suppressed by default hotkey_user_mask */
+		return false;
+	case TP_HKEY_EV_DFR_CHANGE_ROW:
+		adaptive_keyboard_change_row();
+		return true;
+	case TP_HKEY_EV_DFR_S_QUICKVIEW_ROW:
+		adaptive_keyboard_s_quickview_row();
+		return true;
+	case TP_HKEY_EV_THM_CSM_COMPLETED:
 		lapsensor_refresh();
 		/* If we are already accessing DYTC then skip dytc update */
 		if (!atomic_add_unless(&dytc_ignore_event, -1, 0))
 			dytc_profile_refresh();
-	}
-
-	if (lcdshadow_dev && hkey_event == TP_HKEY_EV_PRIVACYGUARD_TOGGLE) {
-		enum drm_privacy_screen_status old_hw_state;
-		bool changed;
-
-		mutex_lock(&lcdshadow_dev->lock);
-		old_hw_state = lcdshadow_dev->hw_state;
-		lcdshadow_get_hw_state(lcdshadow_dev);
-		changed = lcdshadow_dev->hw_state != old_hw_state;
-		mutex_unlock(&lcdshadow_dev->lock);
 
-		if (changed)
-			drm_privacy_screen_call_notifier_chain(lcdshadow_dev);
-	}
-	if (hkey_event == TP_HKEY_EV_AMT_TOGGLE) {
+		return true;
+	case TP_HKEY_EV_PRIVACYGUARD_TOGGLE:
+		if (lcdshadow_dev) {
+			enum drm_privacy_screen_status old_hw_state;
+			bool changed;
+
+			mutex_lock(&lcdshadow_dev->lock);
+			old_hw_state = lcdshadow_dev->hw_state;
+			lcdshadow_get_hw_state(lcdshadow_dev);
+			changed = lcdshadow_dev->hw_state != old_hw_state;
+			mutex_unlock(&lcdshadow_dev->lock);
+
+			if (changed)
+				drm_privacy_screen_call_notifier_chain(lcdshadow_dev);
+		}
+		return true;
+	case TP_HKEY_EV_AMT_TOGGLE:
 		/* If we're enabling AMT we need to force balanced mode */
 		if (!dytc_amt_active)
 			/* This will also set AMT mode enabled */
 			dytc_profile_set(NULL, PLATFORM_PROFILE_BALANCED);
 		else
 			dytc_control_amt(!dytc_amt_active);
+
+		return true;
+	case TP_HKEY_EV_DOUBLETAP_TOGGLE:
+		tp_features.trackpoint_doubletap = !tp_features.trackpoint_doubletap;
+		return true;
+	case TP_HKEY_EV_PROFILE_TOGGLE:
+		platform_profile_cycle();
+		return true;
 	}
-	if (hkey_event == TP_HKEY_EV_PROFILE_TOGGLE) {
-		switch (dytc_current_profile) {
-		case PLATFORM_PROFILE_LOW_POWER:
-			dytc_profile_set(NULL, PLATFORM_PROFILE_BALANCED);
-			break;
-		case PLATFORM_PROFILE_BALANCED:
-			dytc_profile_set(NULL, PLATFORM_PROFILE_PERFORMANCE);
-			break;
-		case PLATFORM_PROFILE_PERFORMANCE:
-			dytc_profile_set(NULL, PLATFORM_PROFILE_LOW_POWER);
-			break;
-		default:
-			pr_warn("Profile HKEY unexpected profile %d", dytc_current_profile);
-		}
-		/* Notify user space the profile changed */
-		platform_profile_notify();
-	}
-}
 
-static void hotkey_driver_event(const unsigned int scancode)
-{
-	tpacpi_driver_event(TP_HKEY_EV_HOTKEY_BASE + scancode);
+	return false;
 }
 
 /* --------------------------------------------------------------------- */
@@ -11814,7 +11652,6 @@ static void thinkpad_acpi_module_exit(void)
 			input_unregister_device(tpacpi_inputdev);
 		else
 			input_free_device(tpacpi_inputdev);
-		kfree(hotkey_keycode_map);
 	}
 
 	if (tpacpi_sensors_pdev)
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index d5b3e22cfa780e..f86690aa3d462e 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -57,6 +57,11 @@ module_param(turn_on_panel_on_resume, int, 0644);
 MODULE_PARM_DESC(turn_on_panel_on_resume,
 	"Call HCI_PANEL_POWER_ON on resume (-1 = auto, 0 = no, 1 = yes");
 
+static int hci_hotkey_quickstart = -1;
+module_param(hci_hotkey_quickstart, int, 0644);
+MODULE_PARM_DESC(hci_hotkey_quickstart,
+		 "Call HCI_HOTKEY_EVENT with value 0x5 for quickstart button support (-1 = auto, 0 = no, 1 = yes");
+
 #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
 
 /* Scan code for Fn key on TOS1900 models */
@@ -136,6 +141,7 @@ MODULE_PARM_DESC(turn_on_panel_on_resume,
 #define HCI_ACCEL_MASK			0x7fff
 #define HCI_ACCEL_DIRECTION_MASK	0x8000
 #define HCI_HOTKEY_DISABLE		0x0b
+#define HCI_HOTKEY_ENABLE_QUICKSTART	0x05
 #define HCI_HOTKEY_ENABLE		0x09
 #define HCI_HOTKEY_SPECIAL_FUNCTIONS	0x10
 #define HCI_LCD_BRIGHTNESS_BITS		3
@@ -2731,10 +2737,15 @@ static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
 		return -ENODEV;
 
 	/*
+	 * Enable quickstart buttons if supported.
+	 *
 	 * Enable the "Special Functions" mode only if they are
 	 * supported and if they are activated.
 	 */
-	if (dev->kbd_function_keys_supported && dev->special_functions)
+	if (hci_hotkey_quickstart)
+		result = hci_write(dev, HCI_HOTKEY_EVENT,
+				   HCI_HOTKEY_ENABLE_QUICKSTART);
+	else if (dev->kbd_function_keys_supported && dev->special_functions)
 		result = hci_write(dev, HCI_HOTKEY_EVENT,
 				   HCI_HOTKEY_SPECIAL_FUNCTIONS);
 	else
@@ -3258,7 +3269,14 @@ static const char *find_hci_method(acpi_handle handle)
  * works. toshiba_acpi_resume() uses HCI_PANEL_POWER_ON to avoid changing
  * the configured brightness level.
  */
-static const struct dmi_system_id turn_on_panel_on_resume_dmi_ids[] = {
+#define QUIRK_TURN_ON_PANEL_ON_RESUME		BIT(0)
+/*
+ * Some Toshibas use "quickstart" keys. On these, HCI_HOTKEY_EVENT must use
+ * the value HCI_HOTKEY_ENABLE_QUICKSTART.
+ */
+#define QUIRK_HCI_HOTKEY_QUICKSTART		BIT(1)
+
+static const struct dmi_system_id toshiba_dmi_quirks[] = {
 	{
 	 /* Toshiba Portégé R700 */
 	 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
@@ -3266,6 +3284,7 @@ static const struct dmi_system_id turn_on_panel_on_resume_dmi_ids[] = {
 		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 		DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
 		},
+	 .driver_data = (void *)QUIRK_TURN_ON_PANEL_ON_RESUME,
 	},
 	{
 	 /* Toshiba Satellite/Portégé R830 */
@@ -3275,6 +3294,7 @@ static const struct dmi_system_id turn_on_panel_on_resume_dmi_ids[] = {
 		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 		DMI_MATCH(DMI_PRODUCT_NAME, "R830"),
 		},
+	 .driver_data = (void *)QUIRK_TURN_ON_PANEL_ON_RESUME,
 	},
 	{
 	 /* Toshiba Satellite/Portégé Z830 */
@@ -3282,6 +3302,7 @@ static const struct dmi_system_id turn_on_panel_on_resume_dmi_ids[] = {
 		DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
 		DMI_MATCH(DMI_PRODUCT_NAME, "Z830"),
 		},
+	 .driver_data = (void *)(QUIRK_TURN_ON_PANEL_ON_RESUME | QUIRK_HCI_HOTKEY_QUICKSTART),
 	},
 };
 
@@ -3290,6 +3311,8 @@ static int toshiba_acpi_add(struct acpi_device *acpi_dev)
 	struct toshiba_acpi_dev *dev;
 	const char *hci_method;
 	u32 dummy;
+	const struct dmi_system_id *dmi_id;
+	long quirks = 0;
 	int ret = 0;
 
 	if (toshiba_acpi)
@@ -3442,8 +3465,15 @@ iio_error:
 	}
 #endif
 
+	dmi_id = dmi_first_match(toshiba_dmi_quirks);
+	if (dmi_id)
+		quirks = (long)dmi_id->driver_data;
+
 	if (turn_on_panel_on_resume == -1)
-		turn_on_panel_on_resume = dmi_check_system(turn_on_panel_on_resume_dmi_ids);
+		turn_on_panel_on_resume = !!(quirks & QUIRK_TURN_ON_PANEL_ON_RESUME);
+
+	if (hci_hotkey_quickstart == -1)
+		hci_hotkey_quickstart = !!(quirks & QUIRK_HCI_HOTKEY_QUICKSTART);
 
 	toshiba_wwan_available(dev);
 	if (dev->wwan_supported)
diff --git a/drivers/platform/x86/uv_sysfs.c b/drivers/platform/x86/uv_sysfs.c
index 38d1b692d3c0aa..3f6d52dea5c91e 100644
--- a/drivers/platform/x86/uv_sysfs.c
+++ b/drivers/platform/x86/uv_sysfs.c
@@ -129,22 +129,22 @@ static ssize_t hub_location_show(struct uv_bios_hub_info *hub_info, char *buf)
 
 static ssize_t hub_partition_show(struct uv_bios_hub_info *hub_info, char *buf)
 {
-	return sprintf(buf, "%d\n", hub_info->f.fields.this_part);
+	return sysfs_emit(buf, "%d\n", hub_info->f.fields.this_part);
 }
 
 static ssize_t hub_shared_show(struct uv_bios_hub_info *hub_info, char *buf)
 {
-	return sprintf(buf, "%d\n", hub_info->f.fields.is_shared);
+	return sysfs_emit(buf, "%d\n", hub_info->f.fields.is_shared);
 }
 static ssize_t hub_nasid_show(struct uv_bios_hub_info *hub_info, char *buf)
 {
 	int cnode = get_obj_to_cnode(hub_info->id);
 
-	return sprintf(buf, "%d\n", ordinal_to_nasid(cnode));
+	return sysfs_emit(buf, "%d\n", ordinal_to_nasid(cnode));
 }
 static ssize_t hub_cnode_show(struct uv_bios_hub_info *hub_info, char *buf)
 {
-	return sprintf(buf, "%d\n", get_obj_to_cnode(hub_info->id));
+	return sysfs_emit(buf, "%d\n", get_obj_to_cnode(hub_info->id));
 }
 
 struct hub_sysfs_entry {
@@ -304,12 +304,12 @@ struct uv_port {
 
 static ssize_t uv_port_conn_hub_show(struct uv_bios_port_info *port, char *buf)
 {
-	return sprintf(buf, "%d\n", port->conn_id);
+	return sysfs_emit(buf, "%d\n", port->conn_id);
 }
 
 static ssize_t uv_port_conn_port_show(struct uv_bios_port_info *port, char *buf)
 {
-	return sprintf(buf, "%d\n", port->conn_port);
+	return sysfs_emit(buf, "%d\n", port->conn_port);
 }
 
 struct uv_port_sysfs_entry {
@@ -470,7 +470,7 @@ static ssize_t uv_pci_location_show(struct uv_pci_top_obj *top_obj, char *buf)
 
 static ssize_t uv_pci_iio_stack_show(struct uv_pci_top_obj *top_obj, char *buf)
 {
-	return sprintf(buf, "%d\n", top_obj->iio_stack);
+	return sysfs_emit(buf, "%d\n", top_obj->iio_stack);
 }
 
 static ssize_t uv_pci_ppb_addr_show(struct uv_pci_top_obj *top_obj, char *buf)
@@ -480,7 +480,7 @@ static ssize_t uv_pci_ppb_addr_show(struct uv_pci_top_obj *top_obj, char *buf)
 
 static ssize_t uv_pci_slot_show(struct uv_pci_top_obj *top_obj, char *buf)
 {
-	return sprintf(buf, "%d\n", top_obj->slot);
+	return sysfs_emit(buf, "%d\n", top_obj->slot);
 }
 
 struct uv_pci_top_sysfs_entry {
@@ -725,13 +725,13 @@ static void pci_topology_exit(void)
 static ssize_t partition_id_show(struct kobject *kobj,
 			struct kobj_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%ld\n", sn_partition_id);
+	return sysfs_emit(buf, "%ld\n", sn_partition_id);
 }
 
 static ssize_t coherence_id_show(struct kobject *kobj,
 			struct kobj_attribute *attr, char *buf)
 {
-	return sprintf(buf, "%ld\n", sn_coherency_id);
+	return sysfs_emit(buf, "%ld\n", sn_coherency_id);
 }
 
 static ssize_t uv_type_show(struct kobject *kobj,
diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index 1920e115da893a..060e4236f932b1 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -1153,6 +1153,34 @@ static int parse_wdg(struct device *wmi_bus_dev, struct platform_device *pdev)
 	return 0;
 }
 
+static int ec_read_multiple(u8 address, u8 *buffer, size_t bytes)
+{
+	size_t i;
+	int ret;
+
+	for (i = 0; i < bytes; i++) {
+		ret = ec_read(address + i, &buffer[i]);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int ec_write_multiple(u8 address, u8 *buffer, size_t bytes)
+{
+	size_t i;
+	int ret;
+
+	for (i = 0; i < bytes; i++) {
+		ret = ec_write(address + i, buffer[i]);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
 /*
  * WMI can have EmbeddedControl access regions. In which case, we just want to
  * hand these off to the EC driver.
@@ -1162,35 +1190,37 @@ acpi_wmi_ec_space_handler(u32 function, acpi_physical_address address,
 			  u32 bits, u64 *value,
 			  void *handler_context, void *region_context)
 {
-	int result = 0;
-	u8 temp = 0;
+	int bytes = bits / BITS_PER_BYTE;
+	int ret;
+
+	if (!value)
+		return AE_NULL_ENTRY;
 
-	if ((address > 0xFF) || !value)
+	if (!bytes || bytes > sizeof(*value))
 		return AE_BAD_PARAMETER;
 
-	if (function != ACPI_READ && function != ACPI_WRITE)
+	if (address > U8_MAX || address + bytes - 1 > U8_MAX)
 		return AE_BAD_PARAMETER;
 
-	if (bits != 8)
+	if (function != ACPI_READ && function != ACPI_WRITE)
 		return AE_BAD_PARAMETER;
 
-	if (function == ACPI_READ) {
-		result = ec_read(address, &temp);
-		*value = temp;
-	} else {
-		temp = 0xff & *value;
-		result = ec_write(address, temp);
-	}
+	if (function == ACPI_READ)
+		ret = ec_read_multiple(address, (u8 *)value, bytes);
+	else
+		ret = ec_write_multiple(address, (u8 *)value, bytes);
 
-	switch (result) {
+	switch (ret) {
 	case -EINVAL:
 		return AE_BAD_PARAMETER;
 	case -ENODEV:
 		return AE_NOT_FOUND;
 	case -ETIME:
 		return AE_TIME;
-	default:
+	case 0:
 		return AE_OK;
+	default:
+		return AE_ERROR;
 	}
 }
 
diff --git a/drivers/platform/x86/x86-android-tablets/core.c b/drivers/platform/x86/x86-android-tablets/core.c
index a3415f1c0b5f82..919ef447122958 100644
--- a/drivers/platform/x86/x86-android-tablets/core.c
+++ b/drivers/platform/x86/x86-android-tablets/core.c
@@ -52,10 +52,8 @@ int x86_android_tablet_get_gpiod(const char *chip, int pin, const char *con_id,
 		return -ENOMEM;
 
 	lookup->dev_id = KBUILD_MODNAME;
-	lookup->table[0].key = chip;
-	lookup->table[0].chip_hwnum = pin;
-	lookup->table[0].con_id = con_id;
-	lookup->table[0].flags = active_low ? GPIO_ACTIVE_LOW : GPIO_ACTIVE_HIGH;
+	lookup->table[0] =
+		GPIO_LOOKUP(chip, pin, con_id, active_low ? GPIO_ACTIVE_LOW : GPIO_ACTIVE_HIGH);
 
 	gpiod_add_lookup_table(lookup);
 	gpiod = devm_gpiod_get(&x86_android_tablet_device->dev, con_id, dflags);
@@ -278,25 +276,25 @@ static void x86_android_tablet_remove(struct platform_device *pdev)
 {
 	int i;
 
-	for (i = 0; i < serdev_count; i++) {
+	for (i = serdev_count - 1; i >= 0; i--) {
 		if (serdevs[i])
 			serdev_device_remove(serdevs[i]);
 	}
 
 	kfree(serdevs);
 
-	for (i = 0; i < pdev_count; i++)
+	for (i = pdev_count - 1; i >= 0; i--)
 		platform_device_unregister(pdevs[i]);
 
 	kfree(pdevs);
 	kfree(buttons);
 
-	for (i = 0; i < spi_dev_count; i++)
+	for (i = spi_dev_count - 1; i >= 0; i--)
 		spi_unregister_device(spi_devs[i]);
 
 	kfree(spi_devs);
 
-	for (i = 0; i < i2c_client_count; i++)
+	for (i = i2c_client_count - 1; i >= 0; i--)
 		i2c_unregister_device(i2c_clients[i]);
 
 	kfree(i2c_clients);
@@ -343,7 +341,7 @@ static __init int x86_android_tablet_probe(struct platform_device *pdev)
 		gpiod_add_lookup_table(gpiod_lookup_tables[i]);
 
 	if (dev_info->init) {
-		ret = dev_info->init();
+		ret = dev_info->init(&pdev->dev);
 		if (ret < 0) {
 			x86_android_tablet_remove(pdev);
 			return ret;
diff --git a/drivers/platform/x86/x86-android-tablets/dmi.c b/drivers/platform/x86/x86-android-tablets/dmi.c
index 5d6c12494f082a..141a2d25e83be6 100644
--- a/drivers/platform/x86/x86-android-tablets/dmi.c
+++ b/drivers/platform/x86/x86-android-tablets/dmi.c
@@ -106,6 +106,24 @@ const struct dmi_system_id x86_android_tablet_ids[] __initconst = {
 	},
 	{
 		/*
+		 * Lenovo Yoga Tablet 2 Pro 1380F/L (13") This has more or less
+		 * the same BIOS as the 830F/L or 1050F/L (8" and 10") below,
+		 * but unlike the 8" / 10" models which share the same mainboard
+		 * this model has a different mainboard.
+		 * This match for the 13" model MUST come before the 8" + 10"
+		 * match since that one will also match the 13" model!
+		 */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"),
+			DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
+			/* Full match so as to NOT match the 830/1050 BIOS */
+			DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21.X64.0005.R00.1504101516"),
+		},
+		.driver_data = (void *)&lenovo_yoga_tab2_1380_info,
+	},
+	{
+		/*
 		 * Lenovo Yoga Tablet 2 830F/L or 1050F/L (The 8" and 10"
 		 * Lenovo Yoga Tablet 2 use the same mainboard)
 		 */
diff --git a/drivers/platform/x86/x86-android-tablets/lenovo.c b/drivers/platform/x86/x86-android-tablets/lenovo.c
index c297391955adbc..74f39b658d2ccd 100644
--- a/drivers/platform/x86/x86-android-tablets/lenovo.c
+++ b/drivers/platform/x86/x86-android-tablets/lenovo.c
@@ -19,6 +19,7 @@
 #include <linux/pinctrl/machine.h>
 #include <linux/platform_data/lp855x.h>
 #include <linux/platform_device.h>
+#include <linux/power/bq24190_charger.h>
 #include <linux/reboot.h>
 #include <linux/rmi.h>
 #include <linux/spi/spi.h>
@@ -229,7 +230,7 @@ static struct gpiod_lookup_table * const lenovo_yb1_x90_gpios[] = {
 	NULL
 };
 
-static int __init lenovo_yb1_x90_init(void)
+static int __init lenovo_yb1_x90_init(struct device *dev)
 {
 	/* Enable the regulators used by the touchscreens */
 
@@ -411,7 +412,7 @@ static struct gpiod_lookup_table * const lenovo_yoga_tab2_830_1050_gpios[] = {
 	NULL
 };
 
-static int __init lenovo_yoga_tab2_830_1050_init(void);
+static int __init lenovo_yoga_tab2_830_1050_init(struct device *dev);
 static void lenovo_yoga_tab2_830_1050_exit(void);
 
 const struct x86_dev_info lenovo_yoga_tab2_830_1050_info __initconst = {
@@ -533,7 +534,7 @@ static int lenovo_yoga_tab2_830_1050_power_off(struct sys_off_data *data)
 	return NOTIFY_DONE;
 }
 
-static int __init lenovo_yoga_tab2_830_1050_init(void)
+static int __init lenovo_yoga_tab2_830_1050_init(struct device *dev)
 {
 	int ret;
 
@@ -565,6 +566,221 @@ static void lenovo_yoga_tab2_830_1050_exit(void)
 	}
 }
 
+/*
+ * Lenovo Yoga Tablet 2 Pro 1380F/L
+ *
+ * The Lenovo Yoga Tablet 2 Pro 1380F/L mostly has the same design as the 830F/L
+ * and the 1050F/L so this re-uses some of the handling for that from above.
+ */
+static const char * const lc824206xa_chg_det_psy[] = { "lc824206xa-charger-detect" };
+
+static const struct property_entry lenovo_yoga_tab2_1380_bq24190_props[] = {
+	PROPERTY_ENTRY_STRING_ARRAY("supplied-from", lc824206xa_chg_det_psy),
+	PROPERTY_ENTRY_REF("monitored-battery", &generic_lipo_hv_4v35_battery_node),
+	PROPERTY_ENTRY_BOOL("omit-battery-class"),
+	PROPERTY_ENTRY_BOOL("disable-reset"),
+	{ }
+};
+
+static const struct software_node lenovo_yoga_tab2_1380_bq24190_node = {
+	.properties = lenovo_yoga_tab2_1380_bq24190_props,
+};
+
+/* For enabling the bq24190 5V boost based on id-pin */
+static struct regulator_consumer_supply lc824206xa_consumer = {
+	.supply = "vbus",
+	.dev_name = "i2c-lc824206xa",
+};
+
+static const struct regulator_init_data lenovo_yoga_tab2_1380_bq24190_vbus_init_data = {
+	.constraints = {
+		.name = "bq24190_vbus",
+		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
+	},
+	.consumer_supplies = &lc824206xa_consumer,
+	.num_consumer_supplies = 1,
+};
+
+struct bq24190_platform_data lenovo_yoga_tab2_1380_bq24190_pdata = {
+	.regulator_init_data = &lenovo_yoga_tab2_1380_bq24190_vbus_init_data,
+};
+
+static const struct property_entry lenovo_yoga_tab2_1380_lc824206xa_props[] = {
+	PROPERTY_ENTRY_BOOL("onnn,enable-miclr-for-dcp"),
+	{ }
+};
+
+static const struct software_node lenovo_yoga_tab2_1380_lc824206xa_node = {
+	.properties = lenovo_yoga_tab2_1380_lc824206xa_props,
+};
+
+static const char * const lenovo_yoga_tab2_1380_lms303d_mount_matrix[] = {
+	"0", "-1", "0",
+	"-1", "0", "0",
+	"0", "0", "1"
+};
+
+static const struct property_entry lenovo_yoga_tab2_1380_lms303d_props[] = {
+	PROPERTY_ENTRY_STRING_ARRAY("mount-matrix", lenovo_yoga_tab2_1380_lms303d_mount_matrix),
+	{ }
+};
+
+static const struct software_node lenovo_yoga_tab2_1380_lms303d_node = {
+	.properties = lenovo_yoga_tab2_1380_lms303d_props,
+};
+
+static const struct x86_i2c_client_info lenovo_yoga_tab2_1380_i2c_clients[] __initconst = {
+	{
+		/* BQ27541 fuel-gauge */
+		.board_info = {
+			.type = "bq27541",
+			.addr = 0x55,
+			.dev_name = "bq27541",
+			.swnode = &fg_bq24190_supply_node,
+		},
+		.adapter_path = "\\_SB_.I2C1",
+	}, {
+		/* bq24292i battery charger */
+		.board_info = {
+			.type = "bq24190",
+			.addr = 0x6b,
+			.dev_name = "bq24292i",
+			.swnode = &lenovo_yoga_tab2_1380_bq24190_node,
+			.platform_data = &lenovo_yoga_tab2_1380_bq24190_pdata,
+		},
+		.adapter_path = "\\_SB_.I2C1",
+		.irq_data = {
+			.type = X86_ACPI_IRQ_TYPE_GPIOINT,
+			.chip = "INT33FC:02",
+			.index = 2,
+			.trigger = ACPI_EDGE_SENSITIVE,
+			.polarity = ACPI_ACTIVE_HIGH,
+			.con_id = "bq24292i_irq",
+		},
+	}, {
+		/* LP8557 Backlight controller */
+		.board_info = {
+			.type = "lp8557",
+			.addr = 0x2c,
+			.dev_name = "lp8557",
+			.platform_data = &lenovo_lp8557_pwm_and_reg_pdata,
+		},
+		.adapter_path = "\\_SB_.I2C3",
+	}, {
+		/* LC824206XA Micro USB Switch */
+		.board_info = {
+			.type = "lc824206xa",
+			.addr = 0x48,
+			.dev_name = "lc824206xa",
+			.swnode = &lenovo_yoga_tab2_1380_lc824206xa_node,
+		},
+		.adapter_path = "\\_SB_.I2C3",
+		.irq_data = {
+			.type = X86_ACPI_IRQ_TYPE_GPIOINT,
+			.chip = "INT33FC:02",
+			.index = 1,
+			.trigger = ACPI_LEVEL_SENSITIVE,
+			.polarity = ACPI_ACTIVE_LOW,
+			.con_id = "lc824206xa_irq",
+		},
+	}, {
+		/* AL3320A ambient light sensor */
+		.board_info = {
+			.type = "al3320a",
+			.addr = 0x1c,
+			.dev_name = "al3320a",
+		},
+		.adapter_path = "\\_SB_.I2C5",
+	}, {
+		/* LSM303DA accelerometer + magnetometer */
+		.board_info = {
+			.type = "lsm303d",
+			.addr = 0x1d,
+			.dev_name = "lsm303d",
+			.swnode = &lenovo_yoga_tab2_1380_lms303d_node,
+		},
+		.adapter_path = "\\_SB_.I2C5",
+	}, {
+		/* Synaptics RMI touchscreen */
+		.board_info = {
+			.type = "rmi4_i2c",
+			.addr = 0x38,
+			.dev_name = "rmi4_i2c",
+			.platform_data = &lenovo_yoga_tab2_830_1050_rmi_pdata,
+		},
+		.adapter_path = "\\_SB_.I2C6",
+		.irq_data = {
+			.type = X86_ACPI_IRQ_TYPE_APIC,
+			.index = 0x45,
+			.trigger = ACPI_EDGE_SENSITIVE,
+			.polarity = ACPI_ACTIVE_HIGH,
+		},
+	}
+};
+
+static const struct platform_device_info lenovo_yoga_tab2_1380_pdevs[] __initconst = {
+	{
+		/* For the Tablet 2 Pro 1380's custom fast charging driver */
+		.name = "lenovo-yoga-tab2-pro-1380-fastcharger",
+		.id = PLATFORM_DEVID_NONE,
+	},
+};
+
+const char * const lenovo_yoga_tab2_1380_modules[] __initconst = {
+	"bq24190_charger",            /* For the Vbus regulator for lc824206xa */
+	NULL
+};
+
+static int __init lenovo_yoga_tab2_1380_init(struct device *dev)
+{
+	int ret;
+
+	/* To verify that the DMI matching works vs the 830 / 1050 models */
+	pr_info("detected Lenovo Yoga Tablet 2 Pro 1380F/L\n");
+
+	ret = lenovo_yoga_tab2_830_1050_init_codec();
+	if (ret)
+		return ret;
+
+	/* SYS_OFF_PRIO_FIRMWARE + 1 so that it runs before acpi_power_off */
+	lenovo_yoga_tab2_830_1050_sys_off_handler =
+		register_sys_off_handler(SYS_OFF_MODE_POWER_OFF, SYS_OFF_PRIO_FIRMWARE + 1,
+					 lenovo_yoga_tab2_830_1050_power_off, NULL);
+	if (IS_ERR(lenovo_yoga_tab2_830_1050_sys_off_handler))
+		return PTR_ERR(lenovo_yoga_tab2_830_1050_sys_off_handler);
+
+	return 0;
+}
+
+static struct gpiod_lookup_table lenovo_yoga_tab2_1380_fc_gpios = {
+	.dev_id = "serial0-0",
+	.table = {
+		GPIO_LOOKUP("INT33FC:00", 57, "uart3_txd", GPIO_ACTIVE_HIGH),
+		GPIO_LOOKUP("INT33FC:00", 61, "uart3_rxd", GPIO_ACTIVE_HIGH),
+		{ }
+	},
+};
+
+static struct gpiod_lookup_table * const lenovo_yoga_tab2_1380_gpios[] = {
+	&lenovo_yoga_tab2_830_1050_codec_gpios,
+	&lenovo_yoga_tab2_1380_fc_gpios,
+	NULL
+};
+
+const struct x86_dev_info lenovo_yoga_tab2_1380_info __initconst = {
+	.i2c_client_info = lenovo_yoga_tab2_1380_i2c_clients,
+	.i2c_client_count = ARRAY_SIZE(lenovo_yoga_tab2_1380_i2c_clients),
+	.pdev_info = lenovo_yoga_tab2_1380_pdevs,
+	.pdev_count = ARRAY_SIZE(lenovo_yoga_tab2_1380_pdevs),
+	.gpio_button = &lenovo_yoga_tab2_830_1050_lid,
+	.gpio_button_count = 1,
+	.gpiod_lookup_tables = lenovo_yoga_tab2_1380_gpios,
+	.bat_swnode = &generic_lipo_hv_4v35_battery_node,
+	.modules = lenovo_yoga_tab2_1380_modules,
+	.init = lenovo_yoga_tab2_1380_init,
+	.exit = lenovo_yoga_tab2_830_1050_exit,
+};
+
 /* Lenovo Yoga Tab 3 Pro YT3-X90F */
 
 /*
@@ -762,7 +978,7 @@ static const struct x86_spi_dev_info lenovo_yt3_spi_devs[] __initconst = {
 	}
 };
 
-static int __init lenovo_yt3_init(void)
+static int __init lenovo_yt3_init(struct device *dev)
 {
 	int ret;
 
diff --git a/drivers/platform/x86/x86-android-tablets/other.c b/drivers/platform/x86/x86-android-tablets/other.c
index 278402dcb808c5..eb0e55c69dfedb 100644
--- a/drivers/platform/x86/x86-android-tablets/other.c
+++ b/drivers/platform/x86/x86-android-tablets/other.c
@@ -11,7 +11,11 @@
 #include <linux/acpi.h>
 #include <linux/gpio/machine.h>
 #include <linux/input.h>
+#include <linux/leds.h>
 #include <linux/platform_device.h>
+#include <linux/pwm.h>
+
+#include <dt-bindings/leds/common.h>
 
 #include "shared-psy-info.h"
 #include "x86-android-tablets.h"
@@ -181,7 +185,7 @@ static const struct x86_i2c_client_info chuwi_hi8_i2c_clients[] __initconst = {
 	},
 };
 
-static int __init chuwi_hi8_init(void)
+static int __init chuwi_hi8_init(struct device *dev)
 {
 	/*
 	 * Avoid the acpi_unregister_gsi() call in x86_acpi_irq_helper_get()
@@ -242,7 +246,7 @@ const struct x86_dev_info cyberbook_t116_info __initconst = {
 #define CZC_EC_EXTRA_PORT	0x68
 #define CZC_EC_ANDROID_KEYS	0x63
 
-static int __init czc_p10t_init(void)
+static int __init czc_p10t_init(struct device *dev)
 {
 	/*
 	 * The device boots up in "Windows 7" mode, when the home button sends a
@@ -594,6 +598,128 @@ const struct x86_dev_info whitelabel_tm800a550l_info __initconst = {
 };
 
 /*
+ * The fwnode for ktd2026 on Xaomi pad2. It composed of a RGB LED node
+ * with three subnodes for each color (B/G/R). The RGB LED node is named
+ * "multi-led" to align with the name in the device tree.
+ */
+
+/* main fwnode for ktd2026 */
+static const struct software_node ktd2026_node = {
+	.name = "ktd2026",
+};
+
+static const struct property_entry ktd2026_rgb_led_props[] = {
+	PROPERTY_ENTRY_U32("reg", 0),
+	PROPERTY_ENTRY_U32("color", LED_COLOR_ID_RGB),
+	PROPERTY_ENTRY_STRING("label", "mipad2:rgb:indicator"),
+	PROPERTY_ENTRY_STRING("linux,default-trigger", "bq27520-0-charging-orange-full-green"),
+	{ }
+};
+
+static const struct software_node ktd2026_rgb_led_node = {
+	.name = "multi-led",
+	.properties = ktd2026_rgb_led_props,
+	.parent = &ktd2026_node,
+};
+
+static const struct property_entry ktd2026_blue_led_props[] = {
+	PROPERTY_ENTRY_U32("reg", 0),
+	PROPERTY_ENTRY_U32("color", LED_COLOR_ID_BLUE),
+	{ }
+};
+
+static const struct software_node ktd2026_blue_led_node = {
+	.properties = ktd2026_blue_led_props,
+	.parent = &ktd2026_rgb_led_node,
+};
+
+static const struct property_entry ktd2026_green_led_props[] = {
+	PROPERTY_ENTRY_U32("reg", 1),
+	PROPERTY_ENTRY_U32("color", LED_COLOR_ID_GREEN),
+	{ }
+};
+
+static const struct software_node ktd2026_green_led_node = {
+	.properties = ktd2026_green_led_props,
+	.parent = &ktd2026_rgb_led_node,
+};
+
+static const struct property_entry ktd2026_red_led_props[] = {
+	PROPERTY_ENTRY_U32("reg", 2),
+	PROPERTY_ENTRY_U32("color", LED_COLOR_ID_RED),
+	{ }
+};
+
+static const struct software_node ktd2026_red_led_node = {
+	.properties = ktd2026_red_led_props,
+	.parent = &ktd2026_rgb_led_node,
+};
+
+static const struct software_node *ktd2026_node_group[] = {
+	&ktd2026_node,
+	&ktd2026_rgb_led_node,
+	&ktd2026_red_led_node,
+	&ktd2026_green_led_node,
+	&ktd2026_blue_led_node,
+	NULL
+};
+
+/*
+ * For the LEDs which backlight the menu / home / back capacitive buttons on
+ * the bottom bezel. These are attached to a TPS61158 LED controller which
+ * is controlled by the "pwm_soc_lpss_2" PWM output.
+ */
+#define XIAOMI_MIPAD2_LED_PERIOD_NS		19200
+#define XIAOMI_MIPAD2_LED_DEFAULT_DUTY		 6000 /* From Android kernel */
+
+static struct pwm_device *xiaomi_mipad2_led_pwm;
+
+static int xiaomi_mipad2_brightness_set(struct led_classdev *led_cdev,
+					enum led_brightness val)
+{
+	struct pwm_state state = {
+		.period = XIAOMI_MIPAD2_LED_PERIOD_NS,
+		.duty_cycle = val,
+		/* Always set PWM enabled to avoid the pin floating */
+		.enabled = true,
+	};
+
+	return pwm_apply_might_sleep(xiaomi_mipad2_led_pwm, &state);
+}
+
+static int __init xiaomi_mipad2_init(struct device *dev)
+{
+	struct led_classdev *led_cdev;
+	int ret;
+
+	xiaomi_mipad2_led_pwm = devm_pwm_get(dev, "pwm_soc_lpss_2");
+	if (IS_ERR(xiaomi_mipad2_led_pwm))
+		return dev_err_probe(dev, PTR_ERR(xiaomi_mipad2_led_pwm), "getting pwm\n");
+
+	led_cdev = devm_kzalloc(dev, sizeof(*led_cdev), GFP_KERNEL);
+	if (!led_cdev)
+		return -ENOMEM;
+
+	led_cdev->name = "mipad2:white:touch-buttons-backlight";
+	led_cdev->max_brightness = XIAOMI_MIPAD2_LED_PERIOD_NS;
+	/* "input-events" trigger uses blink_brightness */
+	led_cdev->blink_brightness = XIAOMI_MIPAD2_LED_DEFAULT_DUTY;
+	led_cdev->default_trigger = "input-events";
+	led_cdev->brightness_set_blocking = xiaomi_mipad2_brightness_set;
+
+	ret = devm_led_classdev_register(dev, led_cdev);
+	if (ret)
+		return dev_err_probe(dev, ret, "registering LED\n");
+
+	return software_node_register_node_group(ktd2026_node_group);
+}
+
+static void xiaomi_mipad2_exit(void)
+{
+	software_node_unregister_node_group(ktd2026_node_group);
+}
+
+/*
  * If the EFI bootloader is not Xiaomi's own signed Android loader, then the
  * Xiaomi Mi Pad 2 X86 tablet sets OSID in the DSDT to 1 (Windows), causing
  * a bunch of devices to be hidden.
@@ -616,6 +742,7 @@ static const struct x86_i2c_client_info xiaomi_mipad2_i2c_clients[] __initconst
 			.type = "ktd2026",
 			.addr = 0x30,
 			.dev_name = "ktd2026",
+			.swnode = &ktd2026_node,
 		},
 		.adapter_path = "\\_SB_.PCI0.I2C3",
 	},
@@ -624,4 +751,6 @@ static const struct x86_i2c_client_info xiaomi_mipad2_i2c_clients[] __initconst
 const struct x86_dev_info xiaomi_mipad2_info __initconst = {
 	.i2c_client_info = xiaomi_mipad2_i2c_clients,
 	.i2c_client_count = ARRAY_SIZE(xiaomi_mipad2_i2c_clients),
+	.init = xiaomi_mipad2_init,
+	.exit = xiaomi_mipad2_exit,
 };
diff --git a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
index 468993edfeee25..86402b9b46a338 100644
--- a/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
+++ b/drivers/platform/x86/x86-android-tablets/x86-android-tablets.h
@@ -89,7 +89,7 @@ struct x86_dev_info {
 	int pdev_count;
 	int serdev_count;
 	int gpio_button_count;
-	int (*init)(void);
+	int (*init)(struct device *dev);
 	void (*exit)(void);
 };
 
@@ -112,6 +112,7 @@ extern const struct x86_dev_info czc_p10t;
 extern const struct x86_dev_info lenovo_yogabook_x90_info;
 extern const struct x86_dev_info lenovo_yogabook_x91_info;
 extern const struct x86_dev_info lenovo_yoga_tab2_830_1050_info;
+extern const struct x86_dev_info lenovo_yoga_tab2_1380_info;
 extern const struct x86_dev_info lenovo_yt3_info;
 extern const struct x86_dev_info medion_lifetab_s10346_info;
 extern const struct x86_dev_info nextbook_ares8_info;
diff --git a/drivers/platform/x86/xiaomi-wmi.c b/drivers/platform/x86/xiaomi-wmi.c
index 54a2546bb93bf8..cbed29ca502a60 100644
--- a/drivers/platform/x86/xiaomi-wmi.c
+++ b/drivers/platform/x86/xiaomi-wmi.c
@@ -2,8 +2,10 @@
 /* WMI driver for Xiaomi Laptops */
 
 #include <linux/acpi.h>
+#include <linux/device.h>
 #include <linux/input.h>
 #include <linux/module.h>
+#include <linux/mutex.h>
 #include <linux/wmi.h>
 
 #include <uapi/linux/input-event-codes.h>
@@ -20,14 +22,23 @@
 
 struct xiaomi_wmi {
 	struct input_dev *input_dev;
+	struct mutex key_lock;	/* Protects the key event sequence */
 	unsigned int key_code;
 };
 
+static void xiaomi_mutex_destroy(void *data)
+{
+	struct mutex *lock = data;
+
+	mutex_destroy(lock);
+}
+
 static int xiaomi_wmi_probe(struct wmi_device *wdev, const void *context)
 {
 	struct xiaomi_wmi *data;
+	int ret;
 
-	if (wdev == NULL || context == NULL)
+	if (!context)
 		return -EINVAL;
 
 	data = devm_kzalloc(&wdev->dev, sizeof(struct xiaomi_wmi), GFP_KERNEL);
@@ -35,6 +46,11 @@ static int xiaomi_wmi_probe(struct wmi_device *wdev, const void *context)
 		return -ENOMEM;
 	dev_set_drvdata(&wdev->dev, data);
 
+	mutex_init(&data->key_lock);
+	ret = devm_add_action_or_reset(&wdev->dev, xiaomi_mutex_destroy, &data->key_lock);
+	if (ret < 0)
+		return ret;
+
 	data->input_dev = devm_input_allocate_device(&wdev->dev);
 	if (data->input_dev == NULL)
 		return -ENOMEM;
@@ -50,19 +66,14 @@ static int xiaomi_wmi_probe(struct wmi_device *wdev, const void *context)
 
 static void xiaomi_wmi_notify(struct wmi_device *wdev, union acpi_object *dummy)
 {
-	struct xiaomi_wmi *data;
-
-	if (wdev == NULL)
-		return;
-
-	data = dev_get_drvdata(&wdev->dev);
-	if (data == NULL)
-		return;
+	struct xiaomi_wmi *data = dev_get_drvdata(&wdev->dev);
 
+	mutex_lock(&data->key_lock);
 	input_report_key(data->input_dev, data->key_code, 1);
 	input_sync(data->input_dev);
 	input_report_key(data->input_dev, data->key_code, 0);
 	input_sync(data->input_dev);
+	mutex_unlock(&data->key_lock);
 }
 
 static const struct wmi_device_id xiaomi_wmi_id_table[] = {
@@ -83,6 +94,7 @@ static struct wmi_driver xiaomi_wmi_driver = {
 	.id_table = xiaomi_wmi_id_table,
 	.probe = xiaomi_wmi_probe,
 	.notify = xiaomi_wmi_notify,
+	.no_singleton = true,
 };
 module_wmi_driver(xiaomi_wmi_driver);
 
diff --git a/include/dt-bindings/leds/common.h b/include/dt-bindings/leds/common.h
index ecea167930d95f..d7c980bdf3834b 100644
--- a/include/dt-bindings/leds/common.h
+++ b/include/dt-bindings/leds/common.h
@@ -46,6 +46,7 @@
 #define LED_FUNCTION_CAPSLOCK "capslock"
 #define LED_FUNCTION_SCROLLLOCK "scrolllock"
 #define LED_FUNCTION_NUMLOCK "numlock"
+#define LED_FUNCTION_FNLOCK "fnlock"
 /*   Obsolete equivalents: "tpacpi::thinklight" (IBM/Lenovo Thinkpads),
      "lp5523:kb{1,2,3,4,5,6}" (Nokia N900) */
 #define LED_FUNCTION_KBD_BACKLIGHT "kbd_backlight"
diff --git a/include/linux/devm-helpers.h b/include/linux/devm-helpers.h
index 74891802200d62..708ca9131402e4 100644
--- a/include/linux/devm-helpers.h
+++ b/include/linux/devm-helpers.h
@@ -41,7 +41,7 @@ static inline void devm_delayed_work_drop(void *res)
  * detached. A few drivers need delayed work which must be cancelled before
  * driver is detached to avoid accessing removed resources.
  * devm_delayed_work_autocancel() can be used to omit the explicit
- * cancelleation when driver is detached.
+ * cancellation when driver is detached.
  */
 static inline int devm_delayed_work_autocancel(struct device *dev,
 					       struct delayed_work *w,
@@ -66,7 +66,7 @@ static inline void devm_work_drop(void *res)
  * A few drivers need to queue work which must be cancelled before driver
  * is detached to avoid accessing removed resources.
  * devm_work_autocancel() can be used to omit the explicit
- * cancelleation when driver is detached.
+ * cancellation when driver is detached.
  */
 static inline int devm_work_autocancel(struct device *dev,
 				       struct work_struct *w,
diff --git a/include/linux/intel_tpmi.h b/include/linux/intel_tpmi.h
index a3529b962be6e4..1e880cb0f4541a 100644
--- a/include/linux/intel_tpmi.h
+++ b/include/linux/intel_tpmi.h
@@ -27,16 +27,22 @@ enum intel_tpmi_id {
 
 /**
  * struct intel_tpmi_plat_info - Platform information for a TPMI device instance
- * @package_id:	CPU Package id
- * @bus_number:	PCI bus number
- * @device_number: PCI device number
+ * @cdie_mask:       Mask of all compute dies in the partition
+ * @package_id:      CPU Package id
+ * @partition:       Package partition id when multiple VSEC PCI devices per package
+ * @segment:         PCI segment ID
+ * @bus_number:      PCI bus number
+ * @device_number:   PCI device number
  * @function_number: PCI function number
  *
  * Structure to store platform data for a TPMI device instance. This
  * struct is used to return data via tpmi_get_platform_data().
  */
 struct intel_tpmi_plat_info {
+	u16 cdie_mask;
 	u8 package_id;
+	u8 partition;
+	u8 segment;
 	u8 bus_number;
 	u8 device_number;
 	u8 function_number;
diff --git a/include/linux/platform_data/x86/asus-wmi.h b/include/linux/platform_data/x86/asus-wmi.h
index ab1c7deff118f3..3eb5cd6773ad41 100644
--- a/include/linux/platform_data/x86/asus-wmi.h
+++ b/include/linux/platform_data/x86/asus-wmi.h
@@ -71,6 +71,7 @@
 #define ASUS_WMI_DEVID_LID_FLIP		0x00060062
 #define ASUS_WMI_DEVID_LID_FLIP_ROG	0x00060077
 #define ASUS_WMI_DEVID_MINI_LED_MODE	0x0005001E
+#define ASUS_WMI_DEVID_MINI_LED_MODE2	0x0005002E
 
 /* Storage */
 #define ASUS_WMI_DEVID_CARDREADER	0x00080013
@@ -127,13 +128,18 @@
 
 /* gpu mux switch, 0 = dGPU, 1 = Optimus */
 #define ASUS_WMI_DEVID_GPU_MUX		0x00090016
+#define ASUS_WMI_DEVID_GPU_MUX_VIVO	0x00090026
 
 /* TUF laptop RGB modes/colours */
 #define ASUS_WMI_DEVID_TUF_RGB_MODE	0x00100056
+#define ASUS_WMI_DEVID_TUF_RGB_MODE2	0x0010005A
 
 /* TUF laptop RGB power/state */
 #define ASUS_WMI_DEVID_TUF_RGB_STATE	0x00100057
 
+/* Bootup sound control */
+#define ASUS_WMI_DEVID_BOOT_SOUND	0x00130022
+
 /* DSTS masks */
 #define ASUS_WMI_DSTS_STATUS_BIT	0x00000001
 #define ASUS_WMI_DSTS_UNKNOWN_BIT	0x00000002
diff --git a/include/linux/platform_profile.h b/include/linux/platform_profile.h
index e5cbb6841f3ac9..f5492ed413f363 100644
--- a/include/linux/platform_profile.h
+++ b/include/linux/platform_profile.h
@@ -36,6 +36,7 @@ struct platform_profile_handler {
 
 int platform_profile_register(struct platform_profile_handler *pprof);
 int platform_profile_remove(void);
+int platform_profile_cycle(void);
 void platform_profile_notify(void);
 
 #endif  /*_PLATFORM_PROFILE_H_*/
diff --git a/include/trace/events/intel_ifs.h b/include/trace/events/intel_ifs.h
index 8ce2de120f2d47..0d88ebf2c98017 100644
--- a/include/trace/events/intel_ifs.h
+++ b/include/trace/events/intel_ifs.h
@@ -28,7 +28,7 @@ TRACE_EVENT(ifs_status,
 		__entry->status	= status;
 	),
 
-	TP_printk("batch: %.2d, start: %.4x, stop: %.4x, status: %.16llx",
+	TP_printk("batch: 0x%.2x, start: 0x%.4x, stop: 0x%.4x, status: 0x%.16llx",
 		__entry->batch,
 		__entry->start,
 		__entry->stop,
diff --git a/tools/arch/x86/dell-uart-backlight-emulator/.gitignore b/tools/arch/x86/dell-uart-backlight-emulator/.gitignore
new file mode 100644
index 00000000000000..5c8cad8d72b9f7
--- /dev/null
+++ b/tools/arch/x86/dell-uart-backlight-emulator/.gitignore
@@ -0,0 +1 @@
+dell-uart-backlight-emulator
diff --git a/tools/arch/x86/dell-uart-backlight-emulator/Makefile b/tools/arch/x86/dell-uart-backlight-emulator/Makefile
new file mode 100644
index 00000000000000..6ea1d9fd534bdd
--- /dev/null
+++ b/tools/arch/x86/dell-uart-backlight-emulator/Makefile
@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for Intel Software Defined Silicon provisioning tool
+
+dell-uart-backlight-emulator: dell-uart-backlight-emulator.c
+
+BINDIR ?= /usr/bin
+
+override CFLAGS += -O2 -Wall
+
+%: %.c
+	$(CC) $(CFLAGS) -o $@ $< $(LDFLAGS)
+
+.PHONY : clean
+clean :
+	@rm -f dell-uart-backlight-emulator
+
+install : dell-uart-backlight-emulator
+	install -d $(DESTDIR)$(BINDIR)
+	install -m 755 -p dell-uart-backlight-emulator $(DESTDIR)$(BINDIR)/dell-uart-backlight-emulator
diff --git a/tools/arch/x86/dell-uart-backlight-emulator/README b/tools/arch/x86/dell-uart-backlight-emulator/README
new file mode 100644
index 00000000000000..c0d8e52046ee87
--- /dev/null
+++ b/tools/arch/x86/dell-uart-backlight-emulator/README
@@ -0,0 +1,46 @@
+Emulator for DELL0501 UART attached backlight controller
+--------------------------------------------------------
+
+Dell All In One (AIO) models released after 2017 use a backlight controller
+board connected to an UART.
+
+In DSDT this uart port will be defined as:
+
+   Name (_HID, "DELL0501")
+   Name (_CID, EisaId ("PNP0501")
+
+With the DELL0501 indicating that we are dealing with an UART with
+the backlight controller board attached.
+
+This small emulator allows testing
+the drivers/platform/x86/dell/dell-uart-backlight.c driver without access
+to an actual Dell All In One.
+
+This requires:
+1. A (desktop) PC with a 16550 UART on the motherboard and a standard DB9
+   connector connected to this UART.
+2. A DB9 NULL modem cable.
+3. A second DB9 serial port, this can e.g. be a USB to serial converter
+   with a DB9 connector plugged into the same desktop PC.
+4. A DSDT overlay for the desktop PC replacing the _HID of the 16550 UART
+   ACPI Device() with "DELL0501" and adding a _CID of "PNP0501", see
+   DSDT.patch for an example of the necessary DSDT changes.
+
+With everything setup and the NULL modem cable connected between
+the 2 serial ports run:
+
+./dell-uart-backlight-emulator <path-to-/dev/tty*S#-for-second-port>
+
+For example when using an USB to serial converter for the second port:
+
+./dell-uart-backlight-emulator /dev/ttyUSB0
+
+And then (re)load the dell-uart-backlight driver:
+
+sudo rmmod dell-uart-backlight; sudo modprobe dell-uart-backlight dyndbg
+
+After this check "dmesg" to see if the driver correctly received
+the firmware version string from the emulator. If this works there
+should be a /sys/class/backlight/dell_uart_backlight/ directory now
+and writes to the brightness or bl_power files should be reflected
+by matching output from the emulator.
diff --git a/tools/arch/x86/dell-uart-backlight-emulator/dell-uart-backlight-emulator.c b/tools/arch/x86/dell-uart-backlight-emulator/dell-uart-backlight-emulator.c
new file mode 100644
index 00000000000000..655b6c96d8cf20
--- /dev/null
+++ b/tools/arch/x86/dell-uart-backlight-emulator/dell-uart-backlight-emulator.c
@@ -0,0 +1,163 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Dell AIO Serial Backlight board emulator for testing
+ * the Linux dell-uart-backlight driver.
+ *
+ * Copyright (C) 2024 Hans de Goede <hansg@kernel.org>
+ */
+#include <errno.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/un.h>
+#include <termios.h>
+#include <unistd.h>
+
+int serial_fd;
+int brightness = 50;
+
+static unsigned char dell_uart_checksum(unsigned char *buf, int len)
+{
+	unsigned char val = 0;
+
+	while (len-- > 0)
+		val += buf[len];
+
+	return val ^ 0xff;
+}
+
+/* read() will return -1 on SIGINT / SIGTERM causing the mainloop to cleanly exit */
+void signalhdlr(int signum)
+{
+}
+
+int main(int argc, char *argv[])
+{
+	struct sigaction sigact = { .sa_handler = signalhdlr };
+	unsigned char buf[4], csum, response[32];
+	const char *version_str = "PHI23-V321";
+	struct termios tty, saved_tty;
+	int ret, idx, len = 0;
+
+	if (argc != 2) {
+		fprintf(stderr, "Invalid or missing arguments\n");
+		fprintf(stderr, "Usage: %s <serial-port>\n", argv[0]);
+		return 1;
+	}
+
+	serial_fd = open(argv[1], O_RDWR | O_NOCTTY);
+	if (serial_fd == -1) {
+		fprintf(stderr, "Error opening %s: %s\n", argv[1], strerror(errno));
+		return 1;
+	}
+
+	ret = tcgetattr(serial_fd, &tty);
+	if (ret == -1) {
+		fprintf(stderr, "Error getting tcattr: %s\n", strerror(errno));
+		goto out_close;
+	}
+	saved_tty = tty;
+
+	cfsetspeed(&tty, 9600);
+	cfmakeraw(&tty);
+	tty.c_cflag &= ~CSTOPB;
+	tty.c_cflag &= ~CRTSCTS;
+	tty.c_cflag |= CLOCAL | CREAD;
+
+	ret = tcsetattr(serial_fd, TCSANOW, &tty);
+	if (ret == -1) {
+		fprintf(stderr, "Error setting tcattr: %s\n", strerror(errno));
+		goto out_restore;
+	}
+
+	sigaction(SIGINT, &sigact, 0);
+	sigaction(SIGTERM, &sigact, 0);
+
+	idx = 0;
+	while (read(serial_fd, &buf[idx], 1) == 1) {
+		if (idx == 0) {
+			switch (buf[0]) {
+			/* 3 MSB bits: cmd-len + 01010 SOF marker */
+			case 0x6a: len = 3; break;
+			case 0x8a: len = 4; break;
+			default:
+				fprintf(stderr, "Error unexpected first byte: 0x%02x\n", buf[0]);
+				continue; /* Try to sync up with sender */
+			}
+		}
+
+		/* Process msg when len bytes have been received */
+		if (idx != (len - 1)) {
+			idx++;
+			continue;
+		}
+
+		/* Reset idx for next command */
+		idx = 0;
+
+		csum = dell_uart_checksum(buf, len - 1);
+		if (buf[len - 1] != csum) {
+			fprintf(stderr, "Error checksum mismatch got 0x%02x expected 0x%02x\n",
+				buf[len - 1], csum);
+			continue;
+		}
+
+		switch ((buf[0] << 8) | buf[1]) {
+		case 0x6a06: /* cmd = 0x06, get version */
+			len = strlen(version_str);
+			strcpy((char *)&response[2], version_str);
+			printf("Get version, reply: %s\n", version_str);
+			break;
+		case 0x8a0b: /* cmd = 0x0b, set brightness */
+			if (buf[2] > 100) {
+				fprintf(stderr, "Error invalid brightness param: %d\n", buf[2]);
+				continue;
+			}
+
+			len = 0;
+			brightness = buf[2];
+			printf("Set brightness %d\n", brightness);
+			break;
+		case 0x6a0c: /* cmd = 0x0c, get brightness */
+			len = 1;
+			response[2] = brightness;
+			printf("Get brightness, reply: %d\n", brightness);
+			break;
+		case 0x8a0e: /* cmd = 0x0e, set backlight power */
+			if (buf[2] != 0 && buf[2] != 1) {
+				fprintf(stderr, "Error invalid set power param: %d\n", buf[2]);
+				continue;
+			}
+
+			len = 0;
+			printf("Set power %d\n", buf[2]);
+			break;
+		default:
+			fprintf(stderr, "Error unknown cmd 0x%04x\n",
+				(buf[0] << 8) | buf[1]);
+			continue;
+		}
+
+		/* Respond with <total-len> <cmd> <data...> <csum> */
+		response[0] = len + 3; /* response length in bytes */
+		response[1] = buf[1];  /* ack cmd */
+		csum = dell_uart_checksum(response, len + 2);
+		response[len + 2] = csum;
+		ret = write(serial_fd, response, response[0]);
+		if (ret != (response[0]))
+			fprintf(stderr, "Error writing %d bytes: %d\n",
+				response[0], ret);
+	}
+
+	ret = 0;
+out_restore:
+	tcsetattr(serial_fd, TCSANOW, &saved_tty);
+out_close:
+	close(serial_fd);
+	return ret;
+}
diff --git a/tools/arch/x86/intel_sdsi/intel_sdsi.c b/tools/arch/x86/intel_sdsi/intel_sdsi.c
index 2cd92761f1714c..766a5d26f53480 100644
--- a/tools/arch/x86/intel_sdsi/intel_sdsi.c
+++ b/tools/arch/x86/intel_sdsi/intel_sdsi.c
@@ -43,7 +43,7 @@
 #define METER_CERT_MAX_SIZE	4096
 #define STATE_MAX_NUM_LICENSES	16
 #define STATE_MAX_NUM_IN_BUNDLE	(uint32_t)8
-#define METER_MAX_NUM_BUNDLES	8
+#define FEAT_LEN		5	/* 4 plus NUL terminator */
 
 #define __round_mask(x, y) ((__typeof__(x))((y) - 1))
 #define round_up(x, y) ((((x) - 1) | __round_mask(x, y)) + 1)
@@ -154,11 +154,12 @@ struct bundle_encoding {
 };
 
 struct meter_certificate {
-	uint32_t block_signature;
-	uint32_t counter_unit;
+	uint32_t signature;
+	uint32_t version;
 	uint64_t ppin;
+	uint32_t counter_unit;
 	uint32_t bundle_length;
-	uint32_t reserved;
+	uint64_t reserved;
 	uint32_t mmrc_encoding;
 	uint32_t mmrc_counter;
 };
@@ -167,6 +168,11 @@ struct bundle_encoding_counter {
 	uint32_t encoding;
 	uint32_t counter;
 };
+#define METER_BUNDLE_SIZE sizeof(struct bundle_encoding_counter)
+#define BUNDLE_COUNT(length) ((length) / METER_BUNDLE_SIZE)
+#define METER_MAX_NUM_BUNDLES							\
+		((METER_CERT_MAX_SIZE - sizeof(struct meter_certificate)) /	\
+		 sizeof(struct bundle_encoding_counter))
 
 struct sdsi_dev {
 	struct sdsi_regs regs;
@@ -179,6 +185,7 @@ struct sdsi_dev {
 enum command {
 	CMD_SOCKET_INFO,
 	CMD_METER_CERT,
+	CMD_METER_CURRENT_CERT,
 	CMD_STATE_CERT,
 	CMD_PROV_AKC,
 	CMD_PROV_CAP,
@@ -316,24 +323,27 @@ static char *content_type(uint32_t type)
 	}
 }
 
-static void get_feature(uint32_t encoding, char *feature)
+static void get_feature(uint32_t encoding, char feature[5])
 {
 	char *name = (char *)&encoding;
 
+	feature[4] = '\0';
 	feature[3] = name[0];
 	feature[2] = name[1];
 	feature[1] = name[2];
 	feature[0] = name[3];
 }
 
-static int sdsi_meter_cert_show(struct sdsi_dev *s)
+static int sdsi_meter_cert_show(struct sdsi_dev *s, bool show_current)
 {
 	char buf[METER_CERT_MAX_SIZE] = {0};
 	struct bundle_encoding_counter *bec;
 	struct meter_certificate *mc;
 	uint32_t count = 0;
 	FILE *cert_ptr;
+	char *cert_fname;
 	int ret, size;
+	char name[FEAT_LEN];
 
 	ret = sdsi_update_registers(s);
 	if (ret)
@@ -341,7 +351,6 @@ static int sdsi_meter_cert_show(struct sdsi_dev *s)
 
 	if (!s->regs.en_features.sdsi) {
 		fprintf(stderr, "SDSi feature is present but not enabled.\n");
-		fprintf(stderr, " Unable to read meter certificate\n");
 		return -1;
 	}
 
@@ -356,15 +365,17 @@ static int sdsi_meter_cert_show(struct sdsi_dev *s)
 		return ret;
 	}
 
-	cert_ptr = fopen("meter_certificate", "r");
+	cert_fname = show_current ? "meter_current" : "meter_certificate";
+	cert_ptr = fopen(cert_fname, "r");
+
 	if (!cert_ptr) {
-		perror("Could not open 'meter_certificate' file");
+		fprintf(stderr, "Could not open '%s' file: %s", cert_fname, strerror(errno));
 		return -1;
 	}
 
 	size = fread(buf, 1, sizeof(buf), cert_ptr);
 	if (!size) {
-		fprintf(stderr, "Could not read 'meter_certificate' file\n");
+		fprintf(stderr, "Could not read '%s' file\n", cert_fname);
 		fclose(cert_ptr);
 		return -1;
 	}
@@ -375,32 +386,39 @@ static int sdsi_meter_cert_show(struct sdsi_dev *s)
 	printf("\n");
 	printf("Meter certificate for device %s\n", s->dev_name);
 	printf("\n");
-	printf("Block Signature:       0x%x\n", mc->block_signature);
-	printf("Count Unit:            %dms\n", mc->counter_unit);
-	printf("PPIN:                  0x%lx\n", mc->ppin);
-	printf("Feature Bundle Length: %d\n", mc->bundle_length);
-	printf("MMRC encoding:         %d\n", mc->mmrc_encoding);
-	printf("MMRC counter:          %d\n", mc->mmrc_counter);
-	if (mc->bundle_length % 8) {
+
+	get_feature(mc->signature, name);
+	printf("Signature:                    %s\n", name);
+
+	printf("Version:                      %d\n", mc->version);
+	printf("Count Unit:                   %dms\n", mc->counter_unit);
+	printf("PPIN:                         0x%lx\n", mc->ppin);
+	printf("Feature Bundle Length:        %d\n", mc->bundle_length);
+
+	get_feature(mc->mmrc_encoding, name);
+	printf("MMRC encoding:                %s\n", name);
+
+	printf("MMRC counter:                 %d\n", mc->mmrc_counter);
+	if (mc->bundle_length % METER_BUNDLE_SIZE) {
 		fprintf(stderr, "Invalid bundle length\n");
 		return -1;
 	}
 
-	if (mc->bundle_length > METER_MAX_NUM_BUNDLES * 8)  {
-		fprintf(stderr, "More than %d bundles: %d\n",
-			METER_MAX_NUM_BUNDLES, mc->bundle_length / 8);
+	if (mc->bundle_length > METER_MAX_NUM_BUNDLES * METER_BUNDLE_SIZE)  {
+		fprintf(stderr, "More than %ld bundles: actual %ld\n",
+			METER_MAX_NUM_BUNDLES, BUNDLE_COUNT(mc->bundle_length));
 		return -1;
 	}
 
-	bec = (void *)(mc) + sizeof(mc);
+	bec = (struct bundle_encoding_counter *)(mc + 1);
 
-	printf("Number of Feature Counters:          %d\n", mc->bundle_length / 8);
-	while (count++ < mc->bundle_length / 8) {
-		char feature[5];
+	printf("Number of Feature Counters:   %ld\n", BUNDLE_COUNT(mc->bundle_length));
+	while (count < BUNDLE_COUNT(mc->bundle_length)) {
+		char feature[FEAT_LEN];
 
-		feature[4] = '\0';
 		get_feature(bec[count].encoding, feature);
 		printf("    %s:          %d\n", feature, bec[count].counter);
+		++count;
 	}
 
 	return 0;
@@ -480,7 +498,7 @@ static int sdsi_state_cert_show(struct sdsi_dev *s)
 			sizeof(*lki) +			// size of the license key info
 			offset;				// offset to this blob content
 		struct bundle_encoding *bundle = (void *)(lbc) + sizeof(*lbc);
-		char feature[5];
+		char feature[FEAT_LEN];
 		uint32_t i;
 
 		printf("     Blob %d:\n", count - 1);
@@ -493,8 +511,6 @@ static int sdsi_state_cert_show(struct sdsi_dev *s)
 		printf("        Blob revision ID:           %u\n", lbc->rev_id);
 		printf("        Number of Features:         %u\n", lbc->num_bundles);
 
-		feature[4] = '\0';
-
 		for (i = 0; i < min(lbc->num_bundles, STATE_MAX_NUM_IN_BUNDLE); i++) {
 			get_feature(bundle[i].encoding, feature);
 			printf("                 Feature %d:         %s\n", i, feature);
@@ -725,7 +741,7 @@ static void sdsi_free_dev(struct sdsi_dev *s)
 
 static void usage(char *prog)
 {
-	printf("Usage: %s [-l] [-d DEVNO [-i] [-s] [-m] [-a FILE] [-c FILE]]\n", prog);
+	printf("Usage: %s [-l] [-d DEVNO [-i] [-s] [-m | -C] [-a FILE] [-c FILE]\n", prog);
 }
 
 static void show_help(void)
@@ -734,8 +750,9 @@ static void show_help(void)
 	printf("  %-18s\t%s\n", "-l, --list",           "list available On Demand devices");
 	printf("  %-18s\t%s\n", "-d, --devno DEVNO",    "On Demand device number");
 	printf("  %-18s\t%s\n", "-i, --info",           "show socket information");
-	printf("  %-18s\t%s\n", "-s, --state",          "show state certificate");
-	printf("  %-18s\t%s\n", "-m, --meter",          "show meter certificate");
+	printf("  %-18s\t%s\n", "-s, --state",          "show state certificate data");
+	printf("  %-18s\t%s\n", "-m, --meter",          "show meter certificate data");
+	printf("  %-18s\t%s\n", "-C, --meter_current",  "show live unattested meter data");
 	printf("  %-18s\t%s\n", "-a, --akc FILE",       "provision socket with AKC FILE");
 	printf("  %-18s\t%s\n", "-c, --cap FILE>",      "provision socket with CAP FILE");
 }
@@ -751,21 +768,22 @@ int main(int argc, char *argv[])
 	int option_index = 0;
 
 	static struct option long_options[] = {
-		{"akc",		required_argument,	0, 'a'},
-		{"cap",		required_argument,	0, 'c'},
-		{"devno",	required_argument,	0, 'd'},
-		{"help",	no_argument,		0, 'h'},
-		{"info",	no_argument,		0, 'i'},
-		{"list",	no_argument,		0, 'l'},
-		{"meter",	no_argument,		0, 'm'},
-		{"state",	no_argument,		0, 's'},
-		{0,		0,			0, 0 }
+		{"akc",			required_argument,	0, 'a'},
+		{"cap",			required_argument,	0, 'c'},
+		{"devno",		required_argument,	0, 'd'},
+		{"help",		no_argument,		0, 'h'},
+		{"info",		no_argument,		0, 'i'},
+		{"list",		no_argument,		0, 'l'},
+		{"meter",		no_argument,		0, 'm'},
+		{"meter_current",	no_argument,		0, 'C'},
+		{"state",		no_argument,		0, 's'},
+		{0,			0,			0, 0 }
 	};
 
 
 	progname = argv[0];
 
-	while ((opt = getopt_long_only(argc, argv, "+a:c:d:hilms", long_options,
+	while ((opt = getopt_long_only(argc, argv, "+a:c:d:hilmCs", long_options,
 			&option_index)) != -1) {
 		switch (opt) {
 		case 'd':
@@ -781,6 +799,9 @@ int main(int argc, char *argv[])
 		case 'm':
 			command = CMD_METER_CERT;
 			break;
+		case 'C':
+			command = CMD_METER_CURRENT_CERT;
+			break;
 		case 's':
 			command = CMD_STATE_CERT;
 			break;
@@ -819,7 +840,10 @@ int main(int argc, char *argv[])
 			ret = sdsi_read_reg(s);
 			break;
 		case CMD_METER_CERT:
-			ret = sdsi_meter_cert_show(s);
+			ret = sdsi_meter_cert_show(s, false);
+			break;
+		case CMD_METER_CURRENT_CERT:
+			ret = sdsi_meter_cert_show(s, true);
 			break;
 		case CMD_STATE_CERT:
 			ret = sdsi_state_cert_show(s);
diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c
index d865dc1f89ee12..5899c27c2e2e88 100644
--- a/tools/power/x86/intel-speed-select/isst-config.c
+++ b/tools/power/x86/intel-speed-select/isst-config.c
@@ -16,9 +16,9 @@ struct process_cmd_struct {
 	int arg;
 };
 
-static const char *version_str = "v1.18";
+static const char *version_str = "v1.19";
 
-static const int supported_api_ver = 2;
+static const int supported_api_ver = 3;
 static struct isst_if_platform_info isst_platform_info;
 static char *progname;
 static int debug_flag;
@@ -46,6 +46,8 @@ static int force_online_offline;
 static int auto_mode;
 static int fact_enable_fail;
 static int cgroupv2;
+static int max_die_id;
+static int max_punit_id;
 
 /* clos related */
 static int current_clos = -1;
@@ -562,6 +564,18 @@ void for_each_online_power_domain_in_set(void (*callback)(struct isst_id *, void
 	}
 
 	for (i = 0; i < MAX_PACKAGE_COUNT; i++) {
+		if (max_die_id == max_punit_id) {
+			for (k = 0; k < MAX_PUNIT_PER_DIE && k < MAX_DIE_PER_PACKAGE; k++) {
+				id.cpu = cpus[i][k][k];
+				id.pkg = i;
+				id.die = k;
+				id.punit = k;
+				if (isst_is_punit_valid(&id))
+					callback(&id, arg1, arg2, arg3, arg4);
+			}
+			continue;
+		}
+
 		for (j = 0; j < MAX_DIE_PER_PACKAGE; j++) {
 			/*
 			 * Fix me:
@@ -795,6 +809,12 @@ static void create_cpu_map(void)
 
 		cpu_cnt[pkg_id][die_id][punit_id]++;
 
+		if (max_die_id < die_id)
+			max_die_id = die_id;
+
+		if (max_punit_id < cpu_map[i].punit_id)
+			max_punit_id = cpu_map[i].punit_id;
+
 		debug_printf(
 			"map logical_cpu:%d core: %d die:%d pkg:%d punit:%d punit_cpu:%d punit_core:%d\n",
 			i, cpu_map[i].core_id, cpu_map[i].die_id,
@@ -2054,6 +2074,7 @@ static void dump_fact_config_for_cpu(struct isst_id *id, void *arg1, void *arg2,
 	struct isst_fact_info fact_info;
 	int ret;
 
+	memset(&fact_info, 0, sizeof(fact_info));
 	ret = isst_get_fact_info(id, tdp_level, fact_bucket, &fact_info);
 	if (ret) {
 		isst_display_error_info_message(1, "Failed to get turbo-freq info at this level", 1, tdp_level);
diff --git a/tools/power/x86/intel-speed-select/isst-core-mbox.c b/tools/power/x86/intel-speed-select/isst-core-mbox.c
index 24bea57f4ff535..c81ecd602bcfa5 100644
--- a/tools/power/x86/intel-speed-select/isst-core-mbox.c
+++ b/tools/power/x86/intel-speed-select/isst-core-mbox.c
@@ -746,6 +746,7 @@ static int mbox_set_pbf_fact_status(struct isst_id *id, int pbf, int enable)
 static int _get_fact_bucket_info(struct isst_id *id, int level,
 			      struct isst_fact_bucket_info *bucket_info)
 {
+	int trl_max_levels = isst_get_trl_max_levels();
 	unsigned int resp;
 	int i, k, ret;
 
@@ -769,7 +770,7 @@ static int _get_fact_bucket_info(struct isst_id *id, int level,
 		}
 	}
 
-	for (k = 0; k < 3; ++k) {
+	for (k = 0; k < trl_max_levels; ++k) {
 		for (i = 0; i < 2; ++i) {
 			int j;
 
diff --git a/tools/power/x86/intel-speed-select/isst-core-tpmi.c b/tools/power/x86/intel-speed-select/isst-core-tpmi.c
index 3458768562e5e4..32ea70c7dbd880 100644
--- a/tools/power/x86/intel-speed-select/isst-core-tpmi.c
+++ b/tools/power/x86/intel-speed-select/isst-core-tpmi.c
@@ -194,8 +194,14 @@ static int tpmi_get_ctdp_control(struct isst_id *id, int config_index,
 	if (!(info.level_mask & level_mask))
 		return -1;
 
-	ctdp_level->fact_support = info.sst_tf_support;
-	ctdp_level->pbf_support = info.sst_bf_support;
+	if (api_version() > 2) {
+		ctdp_level->fact_support = info.sst_tf_support & BIT(config_index);
+		ctdp_level->pbf_support = info.sst_bf_support & BIT(config_index);
+	} else {
+		ctdp_level->fact_support = info.sst_tf_support;
+		ctdp_level->pbf_support = info.sst_bf_support;
+	}
+
 	ctdp_level->fact_enabled = !!(info.feature_state & BIT(1));
 	ctdp_level->pbf_enabled = !!(info.feature_state & BIT(0));
 
diff --git a/tools/power/x86/intel-speed-select/isst-core.c b/tools/power/x86/intel-speed-select/isst-core.c
index f55fef4c13a7a3..05efffbca3b7a8 100644
--- a/tools/power/x86/intel-speed-select/isst-core.c
+++ b/tools/power/x86/intel-speed-select/isst-core.c
@@ -23,6 +23,7 @@ int isst_set_platform_ops(int api_version)
 		isst_ops = mbox_get_platform_ops();
 		break;
 	case 2:
+	case 3:
 		isst_ops = tpmi_get_platform_ops();
 		break;
 	default:
diff --git a/tools/power/x86/intel-speed-select/isst-display.c b/tools/power/x86/intel-speed-select/isst-display.c
index 14c9b037859ac1..07ebd08f32026e 100644
--- a/tools/power/x86/intel-speed-select/isst-display.c
+++ b/tools/power/x86/intel-speed-select/isst-display.c
@@ -172,12 +172,19 @@ static int print_package_info(struct isst_id *id, FILE *outf)
 	int level = 1;
 
 	if (out_format_is_json()) {
-		if (api_version() > 1)
-			snprintf(header, sizeof(header), "package-%d:die-%d:powerdomain-%d:cpu-%d",
-				 id->pkg, id->die, id->punit, id->cpu);
-		else
+		if (api_version() > 1) {
+			if (id->cpu < 0)
+				snprintf(header, sizeof(header),
+					 "package-%d:die-%d:powerdomain-%d:cpu-None",
+					 id->pkg, id->die, id->punit);
+			else
+				snprintf(header, sizeof(header),
+					 "package-%d:die-%d:powerdomain-%d:cpu-%d",
+					 id->pkg, id->die, id->punit, id->cpu);
+		} else {
 			snprintf(header, sizeof(header), "package-%d:die-%d:cpu-%d",
 				 id->pkg, id->die, id->cpu);
+		}
 		format_and_print(outf, level, header, NULL);
 		return 1;
 	}
@@ -189,7 +196,12 @@ static int print_package_info(struct isst_id *id, FILE *outf)
 		snprintf(header, sizeof(header), "powerdomain-%d", id->punit);
 		format_and_print(outf, level++, header, NULL);
 	}
-	snprintf(header, sizeof(header), "cpu-%d", id->cpu);
+
+	if (id->cpu < 0)
+		snprintf(header, sizeof(header), "cpu-None");
+	else
+		snprintf(header, sizeof(header), "cpu-%d", id->cpu);
+
 	format_and_print(outf, level, header, NULL);
 
 	return level;
@@ -199,8 +211,8 @@ static void _isst_pbf_display_information(struct isst_id *id, FILE *outf, int le
 					  struct isst_pbf_info *pbf_info,
 					  int disp_level)
 {
-	char header[256];
-	char value[512];
+	static char header[256];
+	static char value[1024];
 
 	snprintf(header, sizeof(header), "speed-select-base-freq-properties");
 	format_and_print(outf, disp_level, header, NULL);
@@ -338,8 +350,8 @@ void isst_ctdp_display_core_info(struct isst_id *id, FILE *outf, char *prefix,
 void isst_ctdp_display_information(struct isst_id *id, FILE *outf, int tdp_level,
 				   struct isst_pkg_ctdp *pkg_dev)
 {
-	char header[256];
-	char value[512];
+	static char header[256];
+	static char value[1024];
 	static int level;
 	int trl_max_levels = isst_get_trl_max_levels();
 	int i;
diff --git a/tools/power/x86/intel-speed-select/isst.h b/tools/power/x86/intel-speed-select/isst.h
index 4bddd3c66bf72e..39ee75677c2c74 100644
--- a/tools/power/x86/intel-speed-select/isst.h
+++ b/tools/power/x86/intel-speed-select/isst.h
@@ -80,7 +80,7 @@
 #define DISP_FREQ_MULTIPLIER 100
 
 #define MAX_PACKAGE_COUNT	32
-#define MAX_DIE_PER_PACKAGE	2
+#define MAX_DIE_PER_PACKAGE	16
 #define MAX_PUNIT_PER_DIE	8
 
 /* Unified structure to specific a CPU or a Power Domain */