Merge tag 'char-misc-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc and other driver subsystem updates from Greg KH:
 "Here is the big set of char/misc and a number of other driver
  subsystem updates for 6.9-rc1. Included in here are:

   - IIO driver updates, loads of new ones and evolution of existing ones

   - coresight driver updates

   - const cleanups for many driver subsystems

   - speakup driver additions

   - platform remove callback void cleanups

   - mei driver updates

   - mhi driver updates

   - cdx driver updates for MSI interrupt handling

   - nvmem driver updates

   - other smaller driver updates and cleanups, full details in the
    shortlog

  All of these have been in linux-next for a long time with no reported
  issue, other than a build warning for the speakup driver"

The build warning hits clang and is a gcc (and C23) extension, and is
fixed up in the merge.

Link: https://lore.kernel.org/all/20240321134831.GA2762840@dev-arch.thelio-3990X/

* tag 'char-misc-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (279 commits)
  binder: remove redundant variable page_addr
  uio_dmem_genirq: UIO_MEM_DMA_COHERENT conversion
  uio_pruss: UIO_MEM_DMA_COHERENT conversion
  cnic,bnx2,bnx2x: use UIO_MEM_DMA_COHERENT
  uio: introduce UIO_MEM_DMA_COHERENT type
  cdx: add MSI support for CDX bus
  pps: use cflags-y instead of EXTRA_CFLAGS
  speakup: Add /dev/synthu device
  speakup: Fix 8bit characters from direct synth
  parport: sunbpp: Convert to platform remove callback returning void
  parport: amiga: Convert to platform remove callback returning void
  char: xillybus: Convert to platform remove callback returning void
  vmw_balloon: change maintainership
  MAINTAINERS: change the maintainer for hpilo driver
  char: xilinx_hwicap: Fix NULL vs IS_ERR() bug
  hpet: remove hpets::hp_clocksource
  platform: goldfish: move the separate 'default' propery for CONFIG_GOLDFISH
  char: xilinx_hwicap: drop casting to void in dev_set_drvdata
  greybus: move is_gb_* functions out of greybus.h
  greybus: Remove usage of the deprecated ida_simple_xx() API
  ...

1 files changed, 127 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/iio/frequency/adi,admfm2000.yaml b/Documentation/devicetree/bindings/iio/frequency/adi,admfm2000.yaml
new file mode 100644
index 00000000000000..2bcf4bbc12e41f
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/frequency/adi,admfm2000.yaml
@@ -0,0 +1,127 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2024 Analog Devices Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/frequency/adi,admfm2000.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ADMFM2000 Dual Microwave Down Converter
+
+maintainers:
+  - Kim Seer Paller <kimseer.paller@analog.com>
+
+description:
+  Dual microwave down converter module with input RF and LO frequency ranges
+  from 0.5 to 32 GHz and an output IF frequency range from 0.1 to 8 GHz.
+  It consists of a LNA, mixer, IF filter, DSA, and IF amplifier for each down
+  conversion path.
+
+properties:
+  compatible:
+    enum:
+      - adi,admfm2000
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 0
+
+patternProperties:
+  "^channel@[0-1]$":
+    type: object
+    description: Represents a channel of the device.
+
+    additionalProperties: false
+
+    properties:
+      reg:
+        description:
+          The channel number.
+        minimum: 0
+        maximum: 1
+
+      adi,mixer-mode:
+        description:
+          Enable mixer mode for the channel. It downconverts RF between 5 GHz
+          and 32 GHz to IF between 0.5 GHz and 8 GHz. If not present, the channel
+          is in direct IF mode which bypasses the mixer and downconverts RF
+          between 2 GHz and 8 GHz to IF between 0.5 GHz and 8 GHz.
+        type: boolean
+
+      switch-gpios:
+        description: |
+          GPIOs to select the RF path for the channel. The same state of CTRL-A
+          and CTRL-B GPIOs is not permitted.
+          CTRL-A   CTRL-B    CH1 Status        CH2 Status
+          1        0         Direct IF mode    Mixer mode
+          0        1         Mixer mode        Direct IF mode
+
+        items:
+          - description: CTRL-A GPIO
+          - description: CTRL-B GPIO
+
+      attenuation-gpios:
+        description: |
+          Choice of attenuation:
+          DSA-V4  DSA-V3  DSA-V2  DSA-V1  DSA-V0
+          1       1       1       1       1        0 dB
+          1       1       1       1       0        -1 dB
+          1       1       1       0       1        -2 dB
+          1       1       0       1       1        -4 dB
+          1       0       1       1       1        -8 dB
+          0       1       1       1       1        -16 dB
+          0       0       0       0       0        -31 dB
+
+        items:
+          - description: DSA-V0 GPIO
+          - description: DSA-V1 GPIO
+          - description: DSA-V2 GPIO
+          - description: DSA-V3 GPIO
+          - description: DSA-V4 GPIO
+
+    required:
+      - reg
+      - switch-gpios
+      - attenuation-gpios
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    converter {
+      compatible = "adi,admfm2000";
+
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      channel@0 {
+        reg = <0>;
+        switch-gpios = <&gpio 1 GPIO_ACTIVE_LOW>,
+                       <&gpio 2 GPIO_ACTIVE_HIGH>;
+
+        attenuation-gpios = <&gpio 17 GPIO_ACTIVE_LOW>,
+                            <&gpio 22 GPIO_ACTIVE_LOW>,
+                            <&gpio 23 GPIO_ACTIVE_LOW>,
+                            <&gpio 24 GPIO_ACTIVE_LOW>,
+                            <&gpio 25 GPIO_ACTIVE_LOW>;
+      };
+
+      channel@1 {
+        reg = <1>;
+        adi,mixer-mode;
+        switch-gpios = <&gpio 3 GPIO_ACTIVE_LOW>,
+                       <&gpio 4 GPIO_ACTIVE_HIGH>;
+
+        attenuation-gpios = <&gpio 0 GPIO_ACTIVE_LOW>,
+                            <&gpio 5 GPIO_ACTIVE_LOW>,
+                            <&gpio 6 GPIO_ACTIVE_LOW>,
+                            <&gpio 16 GPIO_ACTIVE_LOW>,
+                            <&gpio 26 GPIO_ACTIVE_LOW>;
+      };
+    };
+...