18 files changed, 108 insertions, 66 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index d81b55f5068c..7f10aa38269d 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -452,7 +452,7 @@ config ACPI_SBS
 	  the modules will be called sbs and sbshc.
 
 config ACPI_HED
-	tristate "Hardware Error Device"
+	bool "Hardware Error Device"
 	help
 	  This driver supports the Hardware Error Device (PNP0C33),
 	  which is used to report some hardware errors notified via
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 40208a0f5dfb..797070fc9a3f 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -5,6 +5,10 @@
 
 ccflags-$(CONFIG_ACPI_DEBUG)	+= -DACPI_DEBUG_OUTPUT
 
+ifdef CONFIG_TRACE_BRANCH_PROFILING
+CFLAGS_processor_idle.o += -DDISABLE_BRANCH_PROFILING
+endif
+
 #
 # ACPI Boot-Time Table Parsing
 #
diff --git a/drivers/acpi/acpi_pnp.c b/drivers/acpi/acpi_pnp.c
index 01abf26764b0..435ec60a9682 100644
--- a/drivers/acpi/acpi_pnp.c
+++ b/drivers/acpi/acpi_pnp.c
@@ -120,8 +120,6 @@ static const struct acpi_device_id acpi_pnp_device_ids[] = {
 	{"IBM0071"},
 	/* smsc-ircc2 */
 	{"SMCf010"},
-	/* sb1000 */
-	{"GIC1000"},
 	/* parport_pc */
 	{"PNP0400"},		/* Standard LPT Printer Port */
 	{"PNP0401"},		/* ECP Printer Port */
diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index a972831dbd66..efdadc74e3f4 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -27,6 +27,7 @@
 #include <linux/acpi.h>
 #include <acpi/video.h>
 #include <linux/uaccess.h>
+#include <linux/string_choices.h>
 
 #define ACPI_VIDEO_BUS_NAME		"Video Bus"
 #define ACPI_VIDEO_DEVICE_NAME		"Video Device"
@@ -2039,9 +2040,9 @@ static int acpi_video_bus_add(struct acpi_device *device)
 
 	pr_info("%s [%s] (multi-head: %s  rom: %s  post: %s)\n",
 	       ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device),
-	       video->flags.multihead ? "yes" : "no",
-	       video->flags.rom ? "yes" : "no",
-	       video->flags.post ? "yes" : "no");
+	       str_yes_no(video->flags.multihead),
+	       str_yes_no(video->flags.rom),
+	       str_yes_no(video->flags.post));
 	mutex_lock(&video_list_lock);
 	list_add_tail(&video->entry, &video_bus_head);
 	mutex_unlock(&video_list_lock);
diff --git a/drivers/acpi/arm64/dma.c b/drivers/acpi/arm64/dma.c
index 52b2abf88689..f30f138352b7 100644
--- a/drivers/acpi/arm64/dma.c
+++ b/drivers/acpi/arm64/dma.c
@@ -26,6 +26,11 @@ void acpi_arch_dma_setup(struct device *dev)
 	else
 		end = (1ULL << 32) - 1;
 
+	if (dev->dma_range_map) {
+		dev_dbg(dev, "dma_range_map already set\n");
+		return;
+	}
+
 	ret = acpi_dma_get_range(dev, &map);
 	if (!ret && map) {
 		end = dma_range_map_max(map);
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 7773e6b860e7..90b09840536d 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -24,6 +24,7 @@
 #define ACPI_BUTTON_CLASS		"button"
 #define ACPI_BUTTON_FILE_STATE		"state"
 #define ACPI_BUTTON_TYPE_UNKNOWN	0x00
+#define ACPI_BUTTON_NOTIFY_WAKE		0x02
 #define ACPI_BUTTON_NOTIFY_STATUS	0x80
 
 #define ACPI_BUTTON_SUBCLASS_POWER	"power"
@@ -443,7 +444,12 @@ static void acpi_button_notify(acpi_handle handle, u32 event, void *data)
 	struct input_dev *input;
 	int keycode;
 
-	if (event != ACPI_BUTTON_NOTIFY_STATUS) {
+	switch (event) {
+	case ACPI_BUTTON_NOTIFY_STATUS:
+		break;
+	case ACPI_BUTTON_NOTIFY_WAKE:
+		break;
+	default:
 		acpi_handle_debug(device->handle, "Unsupported event [0x%x]\n",
 				  event);
 		return;
@@ -629,7 +635,7 @@ static int acpi_button_add(struct acpi_device *device)
 		break;
 	default:
 		status = acpi_install_notify_handler(device->handle,
-						     ACPI_DEVICE_NOTIFY, handler,
+						     ACPI_ALL_NOTIFY, handler,
 						     device);
 		break;
 	}
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 3b4d048c4941..dbd4446025ec 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -1161,7 +1161,7 @@ EXPORT_SYMBOL_GPL(acpi_subsys_complete);
  */
 int acpi_subsys_suspend(struct device *dev)
 {
-	if (!dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND) ||
+	if (!dev_pm_smart_suspend(dev) ||
 	    acpi_dev_needs_resume(dev, ACPI_COMPANION(dev)))
 		pm_runtime_resume(dev);
 
@@ -1320,7 +1320,7 @@ EXPORT_SYMBOL_GPL(acpi_subsys_restore_early);
  */
 int acpi_subsys_poweroff(struct device *dev)
 {
-	if (!dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND) ||
+	if (!dev_pm_smart_suspend(dev) ||
 	    acpi_dev_needs_resume(dev, ACPI_COMPANION(dev)))
 		pm_runtime_resume(dev);
 
diff --git a/drivers/acpi/fan.h b/drivers/acpi/fan.h
index 488b51e2cb31..15eba1c70e66 100644
--- a/drivers/acpi/fan.h
+++ b/drivers/acpi/fan.h
@@ -49,6 +49,7 @@ struct acpi_fan_fst {
 
 struct acpi_fan {
 	bool acpi4;
+	bool has_fst;
 	struct acpi_fan_fif fif;
 	struct acpi_fan_fps *fps;
 	int fps_count;
diff --git a/drivers/acpi/fan_attr.c b/drivers/acpi/fan_attr.c
index f4f6e2381f1d..22d29ac2447c 100644
--- a/drivers/acpi/fan_attr.c
+++ b/drivers/acpi/fan_attr.c
@@ -75,15 +75,6 @@ int acpi_fan_create_attributes(struct acpi_device *device)
 	struct acpi_fan *fan = acpi_driver_data(device);
 	int i, status;
 
-	sysfs_attr_init(&fan->fine_grain_control.attr);
-	fan->fine_grain_control.show = show_fine_grain_control;
-	fan->fine_grain_control.store = NULL;
-	fan->fine_grain_control.attr.name = "fine_grain_control";
-	fan->fine_grain_control.attr.mode = 0444;
-	status = sysfs_create_file(&device->dev.kobj, &fan->fine_grain_control.attr);
-	if (status)
-		return status;
-
 	/* _FST is present if we are here */
 	sysfs_attr_init(&fan->fst_speed.attr);
 	fan->fst_speed.show = show_fan_speed;
@@ -92,7 +83,19 @@ int acpi_fan_create_attributes(struct acpi_device *device)
 	fan->fst_speed.attr.mode = 0444;
 	status = sysfs_create_file(&device->dev.kobj, &fan->fst_speed.attr);
 	if (status)
-		goto rem_fine_grain_attr;
+		return status;
+
+	if (!fan->acpi4)
+		return 0;
+
+	sysfs_attr_init(&fan->fine_grain_control.attr);
+	fan->fine_grain_control.show = show_fine_grain_control;
+	fan->fine_grain_control.store = NULL;
+	fan->fine_grain_control.attr.name = "fine_grain_control";
+	fan->fine_grain_control.attr.mode = 0444;
+	status = sysfs_create_file(&device->dev.kobj, &fan->fine_grain_control.attr);
+	if (status)
+		goto rem_fst_attr;
 
 	for (i = 0; i < fan->fps_count; ++i) {
 		struct acpi_fan_fps *fps = &fan->fps[i];
@@ -109,18 +112,18 @@ int acpi_fan_create_attributes(struct acpi_device *device)
 
 			for (j = 0; j < i; ++j)
 				sysfs_remove_file(&device->dev.kobj, &fan->fps[j].dev_attr.attr);
-			goto rem_fst_attr;
+			goto rem_fine_grain_attr;
 		}
 	}
 
 	return 0;
 
-rem_fst_attr:
-	sysfs_remove_file(&device->dev.kobj, &fan->fst_speed.attr);
-
 rem_fine_grain_attr:
 	sysfs_remove_file(&device->dev.kobj, &fan->fine_grain_control.attr);
 
+rem_fst_attr:
+	sysfs_remove_file(&device->dev.kobj, &fan->fst_speed.attr);
+
 	return status;
 }
 
@@ -129,9 +132,13 @@ void acpi_fan_delete_attributes(struct acpi_device *device)
 	struct acpi_fan *fan = acpi_driver_data(device);
 	int i;
 
+	sysfs_remove_file(&device->dev.kobj, &fan->fst_speed.attr);
+
+	if (!fan->acpi4)
+		return;
+
 	for (i = 0; i < fan->fps_count; ++i)
 		sysfs_remove_file(&device->dev.kobj, &fan->fps[i].dev_attr.attr);
 
-	sysfs_remove_file(&device->dev.kobj, &fan->fst_speed.attr);
 	sysfs_remove_file(&device->dev.kobj, &fan->fine_grain_control.attr);
 }
diff --git a/drivers/acpi/fan_core.c b/drivers/acpi/fan_core.c
index 10016f52f4f4..8ad12ad3aaaf 100644
--- a/drivers/acpi/fan_core.c
+++ b/drivers/acpi/fan_core.c
@@ -203,12 +203,16 @@ static const struct thermal_cooling_device_ops fan_cooling_ops = {
  * --------------------------------------------------------------------------
 */
 
+static bool acpi_fan_has_fst(struct acpi_device *device)
+{
+	return acpi_has_method(device->handle, "_FST");
+}
+
 static bool acpi_fan_is_acpi4(struct acpi_device *device)
 {
 	return acpi_has_method(device->handle, "_FIF") &&
 	       acpi_has_method(device->handle, "_FPS") &&
-	       acpi_has_method(device->handle, "_FSL") &&
-	       acpi_has_method(device->handle, "_FST");
+	       acpi_has_method(device->handle, "_FSL");
 }
 
 static int acpi_fan_get_fif(struct acpi_device *device)
@@ -327,7 +331,12 @@ static int acpi_fan_probe(struct platform_device *pdev)
 	device->driver_data = fan;
 	platform_set_drvdata(pdev, fan);
 
-	if (acpi_fan_is_acpi4(device)) {
+	if (acpi_fan_has_fst(device)) {
+		fan->has_fst = true;
+		fan->acpi4 = acpi_fan_is_acpi4(device);
+	}
+
+	if (fan->acpi4) {
 		result = acpi_fan_get_fif(device);
 		if (result)
 			return result;
@@ -335,7 +344,9 @@ static int acpi_fan_probe(struct platform_device *pdev)
 		result = acpi_fan_get_fps(device);
 		if (result)
 			return result;
+	}
 
+	if (fan->has_fst) {
 		result = devm_acpi_fan_create_hwmon(device);
 		if (result)
 			return result;
@@ -343,9 +354,9 @@ static int acpi_fan_probe(struct platform_device *pdev)
 		result = acpi_fan_create_attributes(device);
 		if (result)
 			return result;
+	}
 
-		fan->acpi4 = true;
-	} else {
+	if (!fan->acpi4) {
 		result = acpi_device_update_power(device, NULL);
 		if (result) {
 			dev_err(&device->dev, "Failed to set initial power state\n");
@@ -391,7 +402,7 @@ err_remove_link:
 err_unregister:
 	thermal_cooling_device_unregister(cdev);
 err_end:
-	if (fan->acpi4)
+	if (fan->has_fst)
 		acpi_fan_delete_attributes(device);
 
 	return result;
@@ -401,7 +412,7 @@ static void acpi_fan_remove(struct platform_device *pdev)
 {
 	struct acpi_fan *fan = platform_get_drvdata(pdev);
 
-	if (fan->acpi4) {
+	if (fan->has_fst) {
 		struct acpi_device *device = ACPI_COMPANION(&pdev->dev);
 
 		acpi_fan_delete_attributes(device);
diff --git a/drivers/acpi/fan_hwmon.c b/drivers/acpi/fan_hwmon.c
index bd0d31a398fa..e8d90605106e 100644
--- a/drivers/acpi/fan_hwmon.c
+++ b/drivers/acpi/fan_hwmon.c
@@ -43,6 +43,10 @@ static umode_t acpi_fan_hwmon_is_visible(const void *drvdata, enum hwmon_sensor_
 		case hwmon_fan_input:
 			return 0444;
 		case hwmon_fan_target:
+			/* Only acpi4 fans support fan control. */
+			if (!fan->acpi4)
+				return 0;
+
 			/*
 			 * When in fine grain control mode, not every fan control value
 			 * has an associated fan performance state.
@@ -57,6 +61,10 @@ static umode_t acpi_fan_hwmon_is_visible(const void *drvdata, enum hwmon_sensor_
 	case hwmon_power:
 		switch (attr) {
 		case hwmon_power_input:
+			/* Only acpi4 fans support fan control. */
+			if (!fan->acpi4)
+				return 0;
+
 			/*
 			 * When in fine grain control mode, not every fan control value
 			 * has an associated fan performance state.
diff --git a/drivers/acpi/hed.c b/drivers/acpi/hed.c
index 7652515a6be1..3499f86c411e 100644
--- a/drivers/acpi/hed.c
+++ b/drivers/acpi/hed.c
@@ -80,7 +80,12 @@ static struct acpi_driver acpi_hed_driver = {
 		.remove = acpi_hed_remove,
 	},
 };
-module_acpi_driver(acpi_hed_driver);
+
+static int __init acpi_hed_driver_init(void)
+{
+	return acpi_bus_register_driver(&acpi_hed_driver);
+}
+subsys_initcall(acpi_hed_driver_init);
 
 MODULE_AUTHOR("Huang Ying");
 MODULE_DESCRIPTION("ACPI Hardware Error Device Driver");
diff --git a/drivers/acpi/numa/srat.c b/drivers/acpi/numa/srat.c
index 00ac0d7bb8c9..ce815d7cb8f6 100644
--- a/drivers/acpi/numa/srat.c
+++ b/drivers/acpi/numa/srat.c
@@ -51,6 +51,7 @@ int node_to_pxm(int node)
 		return PXM_INVAL;
 	return node_to_pxm_map[node];
 }
+EXPORT_SYMBOL_GPL(node_to_pxm);
 
 static void __acpi_map_pxm_to_node(int pxm, int node)
 {
diff --git a/drivers/acpi/platform_profile.c b/drivers/acpi/platform_profile.c
index ef9444482db1..671407fc2bd4 100644
--- a/drivers/acpi/platform_profile.c
+++ b/drivers/acpi/platform_profile.c
@@ -289,14 +289,14 @@ static int _remove_hidden_choices(struct device *dev, void *arg)
 
 /**
  * platform_profile_choices_show - Show the available profile choices for legacy sysfs interface
- * @dev: The device
+ * @kobj: The kobject
  * @attr: The attribute
  * @buf: The buffer to write to
  *
  * Return: The number of bytes written
  */
-static ssize_t platform_profile_choices_show(struct device *dev,
-					     struct device_attribute *attr,
+static ssize_t platform_profile_choices_show(struct kobject *kobj,
+					     struct kobj_attribute *attr,
 					     char *buf)
 {
 	struct aggregate_choices_data data = {
@@ -371,14 +371,14 @@ static int _store_and_notify(struct device *dev, void *data)
 
 /**
  * platform_profile_show - Show the current profile for legacy sysfs interface
- * @dev: The device
+ * @kobj: The kobject
  * @attr: The attribute
  * @buf: The buffer to write to
  *
  * Return: The number of bytes written
  */
-static ssize_t platform_profile_show(struct device *dev,
-				     struct device_attribute *attr,
+static ssize_t platform_profile_show(struct kobject *kobj,
+				     struct kobj_attribute *attr,
 				     char *buf)
 {
 	enum platform_profile_option profile = PLATFORM_PROFILE_LAST;
@@ -400,15 +400,15 @@ static ssize_t platform_profile_show(struct device *dev,
 
 /**
  * platform_profile_store - Set the profile for legacy sysfs interface
- * @dev: The device
+ * @kobj: The kobject
  * @attr: The attribute
  * @buf: The buffer to read from
  * @count: The number of bytes to read
  *
  * Return: The number of bytes read
  */
-static ssize_t platform_profile_store(struct device *dev,
-				      struct device_attribute *attr,
+static ssize_t platform_profile_store(struct kobject *kobj,
+				      struct kobj_attribute *attr,
 				      const char *buf, size_t count)
 {
 	struct aggregate_choices_data data = {
@@ -442,12 +442,12 @@ static ssize_t platform_profile_store(struct device *dev,
 	return count;
 }
 
-static DEVICE_ATTR_RO(platform_profile_choices);
-static DEVICE_ATTR_RW(platform_profile);
+static struct kobj_attribute attr_platform_profile_choices = __ATTR_RO(platform_profile_choices);
+static struct kobj_attribute attr_platform_profile = __ATTR_RW(platform_profile);
 
 static struct attribute *platform_profile_attrs[] = {
-	&dev_attr_platform_profile_choices.attr,
-	&dev_attr_platform_profile.attr,
+	&attr_platform_profile_choices.attr,
+	&attr_platform_profile.attr,
 	NULL
 };
 
@@ -627,24 +627,23 @@ EXPORT_SYMBOL_GPL(platform_profile_register);
 /**
  * platform_profile_remove - Unregisters a platform profile class device
  * @dev: Class device
- *
- * Return: 0
  */
-int platform_profile_remove(struct device *dev)
+void platform_profile_remove(struct device *dev)
 {
-	struct platform_profile_handler *pprof = to_pprof_handler(dev);
-	int id;
+	struct platform_profile_handler *pprof;
+
+	if (IS_ERR_OR_NULL(dev))
+		return;
+
+	pprof = to_pprof_handler(dev);
+
 	guard(mutex)(&profile_lock);
 
-	id = pprof->minor;
+	ida_free(&platform_profile_ida, pprof->minor);
 	device_unregister(&pprof->dev);
-	ida_free(&platform_profile_ida, id);
 
 	sysfs_notify(acpi_kobj, NULL, "platform_profile");
-
 	sysfs_update_group(acpi_kobj, &platform_profile_group);
-
-	return 0;
 }
 EXPORT_SYMBOL_GPL(platform_profile_remove);
 
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 25174c24d3d7..b7243d7563b1 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -29,6 +29,7 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/slab.h>
+#include <linux/string_choices.h>
 #include <linux/pm_runtime.h>
 #include <linux/sysfs.h>
 #include <linux/acpi.h>
@@ -197,7 +198,7 @@ static int __get_state(acpi_handle handle, u8 *state)
 	cur_state = sta & ACPI_POWER_RESOURCE_STATE_ON;
 
 	acpi_handle_debug(handle, "Power resource is %s\n",
-			  cur_state ? "on" : "off");
+			  str_on_off(cur_state));
 
 	*state = cur_state;
 	return 0;
@@ -240,7 +241,7 @@ static int acpi_power_get_list_state(struct list_head *list, u8 *state)
 			break;
 	}
 
-	pr_debug("Power resource list is %s\n", cur_state ? "on" : "off");
+	pr_debug("Power resource list is %s\n", str_on_off(cur_state));
 
 	*state = cur_state;
 	return 0;
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 698897b29de2..586cc7d1d8aa 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -590,6 +590,8 @@ static void acpi_idle_play_dead(struct cpuidle_device *dev, int index)
 			raw_safe_halt();
 		else if (cx->entry_method == ACPI_CSTATE_SYSTEMIO) {
 			io_idle(cx->address);
+		} else if (cx->entry_method == ACPI_CSTATE_FFH) {
+			acpi_processor_ffh_play_dead(cx);
 		} else
 			return;
 	}
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 9f4efa8f75a6..fb1fe9f3b1a3 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1632,13 +1632,6 @@ static int acpi_iommu_configure_id(struct device *dev, const u32 *id_in)
 		err = viot_iommu_configure(dev);
 	mutex_unlock(&iommu_probe_device_lock);
 
-	/*
-	 * If we have reason to believe the IOMMU driver missed the initial
-	 * iommu_probe_device() call for dev, replay it to get things in order.
-	 */
-	if (!err && dev->bus)
-		err = iommu_probe_device(dev);
-
 	return err;
 }
 
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 95982c098d5b..0c874186f8ae 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -803,7 +803,7 @@ static int acpi_thermal_add(struct acpi_device *device)
 
 	acpi_thermal_aml_dependency_fix(tz);
 
-	/* Get trip points [_CRT, _PSV, etc.] (required). */
+	/* Get trip points [_ACi, _PSV, etc.] (required). */
 	acpi_thermal_get_trip_points(tz);
 
 	crit_temp = acpi_thermal_get_critical_trip(tz);