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Commit de815a6d authored by Rafael J. Wysocki's avatar Rafael J. Wysocki
Browse files

Merge branches 'acpi-general' and 'acpi-video' 

* acpi-general:
  ACPI: Fix bug when ACPI reset register is implemented in system memory

* acpi-video:
  ACPI / video: Change the default for video.use_native_backlight to 1
parents 9d674f21 a4714a89 751109aa

drivers/acpi/osl.c

+12 −0
Original line number Diff line number Diff line
@@ -1810,6 +1810,16 @@ acpi_status __init acpi_os_initialize(void) 
	acpi_os_map_generic_address(&acpi_gbl_FADT.xpm1b_event_block);

	acpi_os_map_generic_address(&acpi_gbl_FADT.xgpe0_block);

	acpi_os_map_generic_address(&acpi_gbl_FADT.xgpe1_block);

	if (acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER) {

		/*

		 * Use acpi_os_map_generic_address to pre-map the reset

		 * register if it's in system memory.

		 */

		int rv;



		rv = acpi_os_map_generic_address(&acpi_gbl_FADT.reset_register);

		pr_debug(PREFIX "%s: map reset_reg status %d\n", __func__, rv);

	}



	return AE_OK;

}
@@ -1838,6 +1848,8 @@ acpi_status acpi_os_terminate(void) 
	acpi_os_unmap_generic_address(&acpi_gbl_FADT.xgpe0_block);

	acpi_os_unmap_generic_address(&acpi_gbl_FADT.xpm1b_event_block);

	acpi_os_unmap_generic_address(&acpi_gbl_FADT.xpm1a_event_block);

	if (acpi_gbl_FADT.flags & ACPI_FADT_RESET_REGISTER)

		acpi_os_unmap_generic_address(&acpi_gbl_FADT.reset_register);



	destroy_workqueue(kacpid_wq);

	destroy_workqueue(kacpi_notify_wq);

drivers/acpi/video.c

+1 −1
Original line number Diff line number Diff line
@@ -82,7 +82,7 @@ module_param(allow_duplicates, bool, 0644); 
 * For Windows 8 systems: used to decide if video module

 * should skip registering backlight interface of its own.

 */

static int use_native_backlight_param = -1;

static int use_native_backlight_param = 1;

module_param_named(use_native_backlight, use_native_backlight_param, int, 0444);

static bool use_native_backlight_dmi = false;