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/r600.c b/drivers/gpu/drm/radeon/r600.c
index 35a5d48..4f7f318 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -161,6 +161,11 @@
 			}
 			rdev->pm.requested_clock_mode_index = 0;
 			break;
+		case PM_ACTION_DEFAULT:
+			rdev->pm.requested_power_state_index = rdev->pm.default_power_state_index;
+			rdev->pm.requested_clock_mode_index = 0;
+			rdev->pm.can_upclock = false;
+			break;
 		case PM_ACTION_NONE:
 		default:
 			DRM_ERROR("Requested mode for not defined action\n");
@@ -221,6 +226,11 @@
 				rdev->pm.can_upclock = false;
 			}
 			break;
+		case PM_ACTION_DEFAULT:
+			rdev->pm.requested_power_state_index = rdev->pm.default_power_state_index;
+			rdev->pm.requested_clock_mode_index = 0;
+			rdev->pm.can_upclock = false;
+			break;
 		case PM_ACTION_NONE:
 		default:
 			DRM_ERROR("Requested mode for not defined action\n");