Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux.git

11 files changed, 232 insertions, 89 deletions

diff --git a/arch/arm/boot/dts/nvidia/tegra30-ouya.dts b/arch/arm/boot/dts/nvidia/tegra30-ouya.dts
index 7e3de26ca960d2..c284dd0a55ab31 100644
--- a/arch/arm/boot/dts/nvidia/tegra30-ouya.dts
+++ b/arch/arm/boot/dts/nvidia/tegra30-ouya.dts
@@ -4611,8 +4611,8 @@
 	fan: fan {
 		compatible = "gpio-fan";
 		gpios = <&gpio TEGRA_GPIO(J, 2) GPIO_ACTIVE_HIGH>;
-		gpio-fan,speed-map = <0    0
-				      4500 1>;
+		gpio-fan,speed-map = <0    0>,
+				     <4500 1>;
 		#cooling-cells = <2>;
 	};
 
diff --git a/drivers/soc/tegra/Kconfig b/drivers/soc/tegra/Kconfig
index f16beeabaa92bb..33512558af9f7f 100644
--- a/drivers/soc/tegra/Kconfig
+++ b/drivers/soc/tegra/Kconfig
@@ -133,6 +133,11 @@ config ARCH_TEGRA_234_SOC
 	help
 	  Enable support for the NVIDIA Tegra234 SoC.
 
+config ARCH_TEGRA_241_SOC
+	bool "NVIDIA Tegra241 SoC"
+	help
+	  Enable support for the NVIDIA Tegra241 SoC.
+
 endif
 endif
 
diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c
index a2c28f493a75e5..c34efa5bf44c2f 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra.c
@@ -3,11 +3,13 @@
  * Copyright (c) 2013-2023, NVIDIA CORPORATION.  All rights reserved.
  */
 
+#include <linux/acpi.h>
 #include <linux/clk.h>
 #include <linux/device.h>
 #include <linux/kobject.h>
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/mod_devicetable.h>
 #include <linux/nvmem-consumer.h>
 #include <linux/nvmem-provider.h>
 #include <linux/of.h>
@@ -113,6 +115,28 @@ static void tegra_fuse_restore(void *base)
 	fuse->clk = NULL;
 }
 
+static void tegra_fuse_print_sku_info(struct tegra_sku_info *tegra_sku_info)
+{
+	pr_info("Tegra Revision: %s SKU: %d CPU Process: %d SoC Process: %d\n",
+		tegra_revision_name[tegra_sku_info->revision],
+		tegra_sku_info->sku_id, tegra_sku_info->cpu_process_id,
+		tegra_sku_info->soc_process_id);
+	pr_debug("Tegra CPU Speedo ID %d, SoC Speedo ID %d\n",
+		tegra_sku_info->cpu_speedo_id, tegra_sku_info->soc_speedo_id);
+}
+
+static int tegra_fuse_add_lookups(struct tegra_fuse *fuse)
+{
+	fuse->lookups = kmemdup_array(fuse->soc->lookups, sizeof(*fuse->lookups),
+				      fuse->soc->num_lookups, GFP_KERNEL);
+	if (!fuse->lookups)
+		return -ENOMEM;
+
+	nvmem_add_cell_lookups(fuse->lookups, fuse->soc->num_lookups);
+
+	return 0;
+}
+
 static int tegra_fuse_probe(struct platform_device *pdev)
 {
 	void __iomem *base = fuse->base;
@@ -130,15 +154,46 @@ static int tegra_fuse_probe(struct platform_device *pdev)
 		return PTR_ERR(fuse->base);
 	fuse->phys = res->start;
 
-	fuse->clk = devm_clk_get(&pdev->dev, "fuse");
-	if (IS_ERR(fuse->clk)) {
-		if (PTR_ERR(fuse->clk) != -EPROBE_DEFER)
-			dev_err(&pdev->dev, "failed to get FUSE clock: %ld",
-				PTR_ERR(fuse->clk));
+	/* Initialize the soc data and lookups if using ACPI boot. */
+	if (is_acpi_node(dev_fwnode(&pdev->dev)) && !fuse->soc) {
+		u8 chip;
 
-		return PTR_ERR(fuse->clk);
+		tegra_acpi_init_apbmisc();
+
+		chip = tegra_get_chip_id();
+		switch (chip) {
+#if defined(CONFIG_ARCH_TEGRA_194_SOC)
+		case TEGRA194:
+			fuse->soc = &tegra194_fuse_soc;
+			break;
+#endif
+#if defined(CONFIG_ARCH_TEGRA_234_SOC)
+		case TEGRA234:
+			fuse->soc = &tegra234_fuse_soc;
+			break;
+#endif
+#if defined(CONFIG_ARCH_TEGRA_241_SOC)
+		case TEGRA241:
+			fuse->soc = &tegra241_fuse_soc;
+			break;
+#endif
+		default:
+			return dev_err_probe(&pdev->dev, -EINVAL, "Unsupported SoC: %02x\n", chip);
+		}
+
+		fuse->soc->init(fuse);
+		tegra_fuse_print_sku_info(&tegra_sku_info);
+		tegra_soc_device_register();
+
+		err = tegra_fuse_add_lookups(fuse);
+		if (err)
+			return dev_err_probe(&pdev->dev, err, "failed to add FUSE lookups\n");
 	}
 
+	fuse->clk = devm_clk_get_optional(&pdev->dev, "fuse");
+	if (IS_ERR(fuse->clk))
+		return dev_err_probe(&pdev->dev, PTR_ERR(fuse->clk), "failed to get FUSE clock\n");
+
 	platform_set_drvdata(pdev, fuse);
 	fuse->dev = &pdev->dev;
 
@@ -179,12 +234,8 @@ static int tegra_fuse_probe(struct platform_device *pdev)
 	}
 
 	fuse->rst = devm_reset_control_get_optional(&pdev->dev, "fuse");
-	if (IS_ERR(fuse->rst)) {
-		err = PTR_ERR(fuse->rst);
-		dev_err(&pdev->dev, "failed to get FUSE reset: %pe\n",
-			fuse->rst);
-		return err;
-	}
+	if (IS_ERR(fuse->rst))
+		return dev_err_probe(&pdev->dev, PTR_ERR(fuse->rst), "failed to get FUSE reset\n");
 
 	/*
 	 * FUSE clock is enabled at a boot time, hence this resume/suspend
@@ -262,10 +313,17 @@ static const struct dev_pm_ops tegra_fuse_pm = {
 	SET_SYSTEM_SLEEP_PM_OPS(tegra_fuse_suspend, tegra_fuse_resume)
 };
 
+static const struct acpi_device_id tegra_fuse_acpi_match[] = {
+	{ "NVDA200F" },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(acpi, tegra_fuse_acpi_match);
+
 static struct platform_driver tegra_fuse_driver = {
 	.driver = {
 		.name = "tegra-fuse",
 		.of_match_table = tegra_fuse_match,
+		.acpi_match_table = tegra_fuse_acpi_match,
 		.pm = &tegra_fuse_pm,
 		.suppress_bind_attrs = true,
 	},
@@ -287,7 +345,13 @@ u32 __init tegra_fuse_read_early(unsigned int offset)
 
 int tegra_fuse_readl(unsigned long offset, u32 *value)
 {
-	if (!fuse->read || !fuse->clk)
+	/*
+	 * Wait for fuse->clk to be initialized if device-tree boot is used.
+	 */
+	if (is_of_node(dev_fwnode(fuse->dev)) && !fuse->clk)
+		return -EPROBE_DEFER;
+
+	if (!fuse->read)
 		return -EPROBE_DEFER;
 
 	if (IS_ERR(fuse->clk))
@@ -343,7 +407,8 @@ const struct attribute_group tegra_soc_attr_group = {
 };
 
 #if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) || \
-    IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC)
+    IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC) || \
+    IS_ENABLED(CONFIG_ARCH_TEGRA_241_SOC)
 static ssize_t platform_show(struct device *dev, struct device_attribute *attr,
 			     char *buf)
 {
@@ -370,7 +435,7 @@ const struct attribute_group tegra194_soc_attr_group = {
 };
 #endif
 
-struct device * __init tegra_soc_device_register(void)
+struct device *tegra_soc_device_register(void)
 {
 	struct soc_device_attribute *attr;
 	struct soc_device *dev;
@@ -407,6 +472,7 @@ static int __init tegra_init_fuse(void)
 	const struct of_device_id *match;
 	struct device_node *np;
 	struct resource regs;
+	int err;
 
 	tegra_init_apbmisc();
 
@@ -497,22 +563,13 @@ static int __init tegra_init_fuse(void)
 
 	fuse->soc->init(fuse);
 
-	pr_info("Tegra Revision: %s SKU: %d CPU Process: %d SoC Process: %d\n",
-		tegra_revision_name[tegra_sku_info.revision],
-		tegra_sku_info.sku_id, tegra_sku_info.cpu_process_id,
-		tegra_sku_info.soc_process_id);
-	pr_debug("Tegra CPU Speedo ID %d, SoC Speedo ID %d\n",
-		 tegra_sku_info.cpu_speedo_id, tegra_sku_info.soc_speedo_id);
+	tegra_fuse_print_sku_info(&tegra_sku_info);
 
-	if (fuse->soc->lookups) {
-		size_t size = sizeof(*fuse->lookups) * fuse->soc->num_lookups;
-
-		fuse->lookups = kmemdup(fuse->soc->lookups, size, GFP_KERNEL);
-		if (fuse->lookups)
-			nvmem_add_cell_lookups(fuse->lookups, fuse->soc->num_lookups);
-	}
+	err = tegra_fuse_add_lookups(fuse);
+	if (err)
+		pr_err("failed to add FUSE lookups\n");
 
-	return 0;
+	return err;
 }
 early_initcall(tegra_init_fuse);
 
diff --git a/drivers/soc/tegra/fuse/fuse-tegra30.c b/drivers/soc/tegra/fuse/fuse-tegra30.c
index e94d46372a6396..2070d36c510dcb 100644
--- a/drivers/soc/tegra/fuse/fuse-tegra30.c
+++ b/drivers/soc/tegra/fuse/fuse-tegra30.c
@@ -678,3 +678,23 @@ const struct tegra_fuse_soc tegra234_fuse_soc = {
 	.clk_suspend_on = false,
 };
 #endif
+
+#if defined(CONFIG_ARCH_TEGRA_241_SOC)
+static const struct tegra_fuse_info tegra241_fuse_info = {
+	.read = tegra30_fuse_read,
+	.size = 0x16008,
+	.spare = 0xcf0,
+};
+
+static const struct nvmem_keepout tegra241_fuse_keepouts[] = {
+	{ .start = 0xc, .end = 0x1600c }
+};
+
+const struct tegra_fuse_soc tegra241_fuse_soc = {
+	.init = tegra30_fuse_init,
+	.info = &tegra241_fuse_info,
+	.keepouts = tegra241_fuse_keepouts,
+	.num_keepouts = ARRAY_SIZE(tegra241_fuse_keepouts),
+	.soc_attr_group = &tegra194_soc_attr_group,
+};
+#endif
diff --git a/drivers/soc/tegra/fuse/fuse.h b/drivers/soc/tegra/fuse/fuse.h
index 90f23be738947a..9fee6ad6ad9e98 100644
--- a/drivers/soc/tegra/fuse/fuse.h
+++ b/drivers/soc/tegra/fuse/fuse.h
@@ -69,6 +69,7 @@ struct tegra_fuse {
 
 void tegra_init_revision(void);
 void tegra_init_apbmisc(void);
+void tegra_acpi_init_apbmisc(void);
 
 u32 __init tegra_fuse_read_spare(unsigned int spare);
 u32 __init tegra_fuse_read_early(unsigned int offset);
@@ -123,7 +124,8 @@ extern const struct tegra_fuse_soc tegra186_fuse_soc;
 #endif
 
 #if IS_ENABLED(CONFIG_ARCH_TEGRA_194_SOC) || \
-    IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC)
+    IS_ENABLED(CONFIG_ARCH_TEGRA_234_SOC) || \
+    IS_ENABLED(CONFIG_ARCH_TEGRA_241_SOC)
 extern const struct attribute_group tegra194_soc_attr_group;
 #endif
 
@@ -135,4 +137,8 @@ extern const struct tegra_fuse_soc tegra194_fuse_soc;
 extern const struct tegra_fuse_soc tegra234_fuse_soc;
 #endif
 
+#ifdef CONFIG_ARCH_TEGRA_241_SOC
+extern const struct tegra_fuse_soc tegra241_fuse_soc;
+#endif
+
 #endif
diff --git a/drivers/soc/tegra/fuse/tegra-apbmisc.c b/drivers/soc/tegra/fuse/tegra-apbmisc.c
index da970f3dbf3562..e2ca5d55fd3125 100644
--- a/drivers/soc/tegra/fuse/tegra-apbmisc.c
+++ b/drivers/soc/tegra/fuse/tegra-apbmisc.c
@@ -3,9 +3,11 @@
  * Copyright (c) 2014-2023, NVIDIA CORPORATION.  All rights reserved.
  */
 
+#include <linux/acpi.h>
 #include <linux/export.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
 
@@ -62,6 +64,7 @@ bool tegra_is_silicon(void)
 	switch (tegra_get_chip_id()) {
 	case TEGRA194:
 	case TEGRA234:
+	case TEGRA241:
 	case TEGRA264:
 		if (tegra_get_platform() == 0)
 			return true;
@@ -160,9 +163,34 @@ void __init tegra_init_revision(void)
 	tegra_sku_info.platform = tegra_get_platform();
 }
 
-void __init tegra_init_apbmisc(void)
+static void tegra_init_apbmisc_resources(struct resource *apbmisc,
+					 struct resource *straps)
 {
 	void __iomem *strapping_base;
+
+	apbmisc_base = ioremap(apbmisc->start, resource_size(apbmisc));
+	if (apbmisc_base)
+		chipid = readl_relaxed(apbmisc_base + 4);
+	else
+		pr_err("failed to map APBMISC registers\n");
+
+	strapping_base = ioremap(straps->start, resource_size(straps));
+	if (strapping_base) {
+		strapping = readl_relaxed(strapping_base);
+		iounmap(strapping_base);
+	} else {
+		pr_err("failed to map strapping options registers\n");
+	}
+}
+
+/**
+ * tegra_init_apbmisc - Initializes Tegra APBMISC and Strapping registers.
+ *
+ * This is called during early init as some of the old 32-bit ARM code needs
+ * information from the APBMISC registers very early during boot.
+ */
+void __init tegra_init_apbmisc(void)
+{
 	struct resource apbmisc, straps;
 	struct device_node *np;
 
@@ -219,23 +247,73 @@ void __init tegra_init_apbmisc(void)
 		}
 	}
 
-	apbmisc_base = ioremap(apbmisc.start, resource_size(&apbmisc));
-	if (!apbmisc_base) {
-		pr_err("failed to map APBMISC registers\n");
-	} else {
-		chipid = readl_relaxed(apbmisc_base + 4);
+	tegra_init_apbmisc_resources(&apbmisc, &straps);
+	long_ram_code = of_property_read_bool(np, "nvidia,long-ram-code");
+
+put:
+	of_node_put(np);
+}
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id apbmisc_acpi_match[] = {
+	{ "NVDA2010" },
+	{ /* sentinel */ }
+};
+
+void tegra_acpi_init_apbmisc(void)
+{
+	struct resource *resources[2] = { NULL };
+	struct resource_entry *rentry;
+	struct acpi_device *adev = NULL;
+	struct list_head resource_list;
+	int rcount = 0;
+	int ret;
+
+	adev = acpi_dev_get_first_match_dev(apbmisc_acpi_match[0].id, NULL, -1);
+	if (!adev)
+		return;
+
+	INIT_LIST_HEAD(&resource_list);
+
+	ret = acpi_dev_get_memory_resources(adev, &resource_list);
+	if (ret < 0) {
+		pr_err("failed to get APBMISC memory resources");
+		goto out_put_acpi_dev;
 	}
 
-	strapping_base = ioremap(straps.start, resource_size(&straps));
-	if (!strapping_base) {
-		pr_err("failed to map strapping options registers\n");
-	} else {
-		strapping = readl_relaxed(strapping_base);
-		iounmap(strapping_base);
+	/*
+	 * Get required memory resources.
+	 *
+	 * resources[0]: apbmisc.
+	 * resources[1]: straps.
+	 */
+	resource_list_for_each_entry(rentry, &resource_list) {
+		if (rcount >= ARRAY_SIZE(resources))
+			break;
+
+		resources[rcount++] = rentry->res;
 	}
 
-	long_ram_code = of_property_read_bool(np, "nvidia,long-ram-code");
+	if (!resources[0]) {
+		pr_err("failed to get APBMISC registers\n");
+		goto out_free_resource_list;
+	}
 
-put:
-	of_node_put(np);
+	if (!resources[1]) {
+		pr_err("failed to get strapping options registers\n");
+		goto out_free_resource_list;
+	}
+
+	tegra_init_apbmisc_resources(resources[0], resources[1]);
+
+out_free_resource_list:
+	acpi_dev_free_resource_list(&resource_list);
+
+out_put_acpi_dev:
+	acpi_dev_put(adev);
+}
+#else
+void tegra_acpi_init_apbmisc(void)
+{
 }
+#endif
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index f432aa022ace06..6dfcc7f50ecea9 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -1777,30 +1777,6 @@ static int tegra_io_pad_get_voltage(struct tegra_pmc *pmc, enum tegra_io_pad id)
 	return TEGRA_IO_PAD_VOLTAGE_3V3;
 }
 
-/**
- * tegra_io_rail_power_on() - enable power to I/O rail
- * @id: Tegra I/O pad ID for which to enable power
- *
- * See also: tegra_io_pad_power_enable()
- */
-int tegra_io_rail_power_on(unsigned int id)
-{
-	return tegra_io_pad_power_enable(id);
-}
-EXPORT_SYMBOL(tegra_io_rail_power_on);
-
-/**
- * tegra_io_rail_power_off() - disable power to I/O rail
- * @id: Tegra I/O pad ID for which to disable power
- *
- * See also: tegra_io_pad_power_disable()
- */
-int tegra_io_rail_power_off(unsigned int id)
-{
-	return tegra_io_pad_power_disable(id);
-}
-EXPORT_SYMBOL(tegra_io_rail_power_off);
-
 #ifdef CONFIG_PM_SLEEP
 enum tegra_suspend_mode tegra_pmc_get_suspend_mode(void)
 {
diff --git a/include/linux/string.h b/include/linux/string.h
index ce137830a0b99c..433c207a01daa6 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -220,6 +220,7 @@ extern char *kstrndup(const char *s, size_t len, gfp_t gfp);
 extern void *kmemdup(const void *src, size_t len, gfp_t gfp) __realloc_size(2);
 extern void *kvmemdup(const void *src, size_t len, gfp_t gfp) __realloc_size(2);
 extern char *kmemdup_nul(const char *s, size_t len, gfp_t gfp);
+extern void *kmemdup_array(const void *src, size_t element_size, size_t count, gfp_t gfp);
 
 extern char **argv_split(gfp_t gfp, const char *str, int *argcp);
 extern void argv_free(char **argv);
diff --git a/include/soc/tegra/fuse.h b/include/soc/tegra/fuse.h
index 3a513be502437f..8f421b9f7585ca 100644
--- a/include/soc/tegra/fuse.h
+++ b/include/soc/tegra/fuse.h
@@ -17,6 +17,7 @@
 #define TEGRA186	0x18
 #define TEGRA194	0x19
 #define TEGRA234	0x23
+#define TEGRA241	0x24
 #define TEGRA264	0x26
 
 #define TEGRA_FUSE_SKU_CALIB_0	0xf0
diff --git a/include/soc/tegra/pmc.h b/include/soc/tegra/pmc.h
index aadb845d281dd7..c545875d0ff18e 100644
--- a/include/soc/tegra/pmc.h
+++ b/include/soc/tegra/pmc.h
@@ -148,10 +148,6 @@ enum tegra_io_pad {
 	TEGRA_IO_PAD_AO_HV,
 };
 
-/* deprecated, use TEGRA_IO_PAD_{HDMI,LVDS} instead */
-#define TEGRA_IO_RAIL_HDMI	TEGRA_IO_PAD_HDMI
-#define TEGRA_IO_RAIL_LVDS	TEGRA_IO_PAD_LVDS
-
 #ifdef CONFIG_SOC_TEGRA_PMC
 int tegra_powergate_power_on(unsigned int id);
 int tegra_powergate_power_off(unsigned int id);
@@ -164,10 +160,6 @@ int tegra_powergate_sequence_power_up(unsigned int id, struct clk *clk,
 int tegra_io_pad_power_enable(enum tegra_io_pad id);
 int tegra_io_pad_power_disable(enum tegra_io_pad id);
 
-/* deprecated, use tegra_io_pad_power_{enable,disable}() instead */
-int tegra_io_rail_power_on(unsigned int id);
-int tegra_io_rail_power_off(unsigned int id);
-
 void tegra_pmc_set_suspend_mode(enum tegra_suspend_mode mode);
 void tegra_pmc_enter_suspend_mode(enum tegra_suspend_mode mode);
 
@@ -211,16 +203,6 @@ static inline int tegra_io_pad_get_voltage(enum tegra_io_pad id)
 	return -ENOSYS;
 }
 
-static inline int tegra_io_rail_power_on(unsigned int id)
-{
-	return -ENOSYS;
-}
-
-static inline int tegra_io_rail_power_off(unsigned int id)
-{
-	return -ENOSYS;
-}
-
 static inline void tegra_pmc_set_suspend_mode(enum tegra_suspend_mode mode)
 {
 }
diff --git a/mm/util.c b/mm/util.c
index 5a6a9802583b18..5faf3adc6f433a 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -136,6 +136,23 @@ void *kmemdup(const void *src, size_t len, gfp_t gfp)
 EXPORT_SYMBOL(kmemdup);
 
 /**
+ * kmemdup_array - duplicate a given array.
+ *
+ * @src: array to duplicate.
+ * @element_size: size of each element of array.
+ * @count: number of elements to duplicate from array.
+ * @gfp: GFP mask to use.
+ *
+ * Return: duplicated array of @src or %NULL in case of error,
+ * result is physically contiguous. Use kfree() to free.
+ */
+void *kmemdup_array(const void *src, size_t element_size, size_t count, gfp_t gfp)
+{
+	return kmemdup(src, size_mul(element_size, count), gfp);
+}
+EXPORT_SYMBOL(kmemdup_array);
+
+/**
  * kvmemdup - duplicate region of memory
  *
  * @src: memory region to duplicate