ACPICA: Windows compatibility: autoexecute root _INI method

[pandora-kernel.git] / drivers / acpi / acpica / nsinit.c

diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c
index 2adfcf3..1d5b360 100644 (file)
--- a/drivers/acpi/acpica/nsinit.c
+++ b/drivers/acpi/acpica/nsinit.c
@@ -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,