Merge tag 'acpi-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "These rework the handling of notifications in ACPI button drivers (to
  enable future simplifications and cleanups), clean up the ACPI thermal
  driver, update the ACPI backlight driver, add quirks working around
  AML bugs on some systems, fix some assorted issues and clean up code.

  Specifics:

   - Reduce ACPI device enumeration overhead related to devices with
     dependencies (Rafael Wysocki)

   - Fix the handling of Microsoft LPS0 _DSM for suspend-to-idle (Mario
     Limonciello)

   - Fix section mismatch warning in the ACPI suspend-to-idle code (Arnd
     Bergmann)

   - Drop several ACPI resource management quirks related to IRQ
     ovverides on AMD "Zen" systems (Mario Limonciello)

   - Modify the ACPI EC driver to make it only clear the EC GPE status
     when handling the GPE (Jeremy Compostella)

   - Add quirks to work around ACPI tables defects on Lenovo Yoga Book
     yb1-x90f/l and Nextbook Ares 8A (Hans de Goede)

   - Add ACPi backlight quirks for Dell Studio 1569, Lenovo ThinkPad
     X131e (3371 AMD version) and Apple iMac11,3 and stop trying to use
     vendor backlight control on relatively recent systems (Hans de
     Goede)

   - Add pwm_lookup_table entry for second PWM on CHT/BSW devices in the
     ACPI LPSS (Intel SoC) driver (Hans de Goede)

   - Add nfit_intel_shutdown_status() declaration to a local header to
     avoid a "missing prototypes" build warning (Arnd Bergmann)

   - Clean up the ACPI thermal driver and drop some dead or otherwise
     unneded code from it (Rafael Wysocki)

   - Rework the handling of notifications in the ACPI button drivers so
     as to allow the common notification handling code for devices to be
     simplified (Rafael Wysocki)

   - Make ghes_get_devices() return NULL to indicate that there are no
     GHES devices so as to allow vendor-specific EDAC drivers to probe
     then (Li Yang)

   - Mark bert_disable() as __initdata and drop an unused function from
     the APEI GHES code (Miaohe Lin)

   - Make the ACPI PAD (Processor Aggregator Device) driver realize that
     Zhaoxin CPUs support nonstop TSC (Tony W Wang-oc)

   - Drop the certainly unnecessary and likely incorrect inclusion of
     linux/arm-smccc.h from acpi_ffh.c (Sudeep Holla)"

* tag 'acpi-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (30 commits)
  ACPI: video: Add backlight=native DMI quirk for Dell Studio 1569
  ACPI: thermal: Drop struct acpi_thermal_flags
  ACPI: thermal: Drop struct acpi_thermal_state
  ACPI: bus: Simplify installation and removal of notify callback
  ACPI: tiny-power-button: Eliminate the driver notify callback
  ACPI: button: Use different notify handlers for lid and buttons
  ACPI: button: Eliminate the driver notify callback
  ACPI: thermal: Eliminate struct acpi_thermal_state_flags
  ACPI: thermal: Move acpi_thermal_driver definition
  ACPI: thermal: Move symbol definitions to one place
  ACPI: thermal: Drop redundant ACPI_TRIPS_REFRESH_DEVICES symbol
  ACPI: thermal: Use BIT() macro for defining flags
  APEI: GHES: correctly return NULL for ghes_get_devices()
  ACPI: FFH: Drop the inclusion of linux/arm-smccc.h
  ACPI: PAD: mark Zhaoxin CPUs NONSTOP TSC correctly
  ACPI: APEI: mark bert_disable as __initdata
  ACPI: EC: Clear GPE on interrupt handling only
  ACPI: video: Stop trying to use vendor backlight control on laptops from after ~2012
  ACPI: x86: s2idle: Adjust Microsoft LPS0 _DSM handling sequence
  ACPI: resource: Remove "Zen" specific match and quirks
  ...

1 files changed, 9 insertions, 44 deletions

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 7a1eaf8c7bde..e3e0bd0c5a50 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -527,65 +527,30 @@ static void acpi_notify_device(acpi_handle handle, u32 event, void *data)
 	acpi_drv->ops.notify(device, event);
 }
 
-static void acpi_notify_device_fixed(void *data)
-{
-	struct acpi_device *device = data;
-
-	/* Fixed hardware devices have no handles */
-	acpi_notify_device(NULL, ACPI_FIXED_HARDWARE_EVENT, device);
-}
-
-static u32 acpi_device_fixed_event(void *data)
-{
-	acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_notify_device_fixed, data);
-	return ACPI_INTERRUPT_HANDLED;
-}
-
 static int acpi_device_install_notify_handler(struct acpi_device *device,
 					      struct acpi_driver *acpi_drv)
 {
-	acpi_status status;
-
-	if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) {
-		status =
-		    acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
-						     acpi_device_fixed_event,
-						     device);
-	} else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON) {
-		status =
-		    acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
-						     acpi_device_fixed_event,
-						     device);
-	} else {
-		u32 type = acpi_drv->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS ?
+	u32 type = acpi_drv->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS ?
 				ACPI_ALL_NOTIFY : ACPI_DEVICE_NOTIFY;
+	acpi_status status;
 
-		status = acpi_install_notify_handler(device->handle, type,
-						     acpi_notify_device,
-						     device);
-	}
-
+	status = acpi_install_notify_handler(device->handle, type,
+					     acpi_notify_device, device);
 	if (ACPI_FAILURE(status))
 		return -EINVAL;
+
 	return 0;
 }
 
 static void acpi_device_remove_notify_handler(struct acpi_device *device,
 					      struct acpi_driver *acpi_drv)
 {
-	if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) {
-		acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
-						acpi_device_fixed_event);
-	} else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON) {
-		acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
-						acpi_device_fixed_event);
-	} else {
-		u32 type = acpi_drv->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS ?
+	u32 type = acpi_drv->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS ?
 				ACPI_ALL_NOTIFY : ACPI_DEVICE_NOTIFY;
 
-		acpi_remove_notify_handler(device->handle, type,
-					   acpi_notify_device);
-	}
+	acpi_remove_notify_handler(device->handle, type,
+				   acpi_notify_device);
+
 	acpi_os_wait_events_complete();
 }