drm/radeon/kms/pm: restore default power state on exit

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index b9ad976..5ffb295 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -615,7 +615,8 @@
 	PM_ACTION_NONE,
 	PM_ACTION_MINIMUM,
 	PM_ACTION_DOWNCLOCK,
-	PM_ACTION_UPCLOCK
+	PM_ACTION_UPCLOCK,
+	PM_ACTION_DEFAULT
 };
 
 enum radeon_voltage_type {