Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 9e64155e authored by Bob Moore's avatar Bob Moore Committed by Len Brown
Browse files

ACPICA: Windows compatibility: autoexecute root _INI method 



Add support for execution of an _INI method at the namespace root.
Although not defined in the ACPI specification, this support was
added to Windows around the Vista timeframe. It is added here
for Windows compatibility.

Signed-off-by: default avatarBob Moore <robert.moore@intel.com>
Signed-off-by: default avatarLin Ming <ming.m.lin@intel.com>
Signed-off-by: default avatarLen Brown <len.brown@intel.com>
parent eb752552

drivers/acpi/acpica/nsinit.c

+15 −0
Original line number Diff line number Diff line
@@ -170,6 +170,21 @@ acpi_status acpi_ns_initialize_devices(void) 
		goto error_exit;

	}



	/*

	 * Execute the "global" _INI method that may appear at the root. This

	 * support is provided for Windows compatibility (Vista+) and is not

	 * part of the ACPI specification.

	 */

	info.evaluate_info->prefix_node = acpi_gbl_root_node;

	info.evaluate_info->pathname = METHOD_NAME__INI;

	info.evaluate_info->parameters = NULL;

	info.evaluate_info->flags = ACPI_IGNORE_RETURN_VALUE;



	status = acpi_ns_evaluate(info.evaluate_info);

	if (ACPI_SUCCESS(status)) {

		info.num_INI++;

	}



	/* Walk namespace to execute all _INIs on present devices */



	status = acpi_ns_walk_namespace(ACPI_TYPE_ANY, ACPI_ROOT_OBJECT,