diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 8949d2d..731080d 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -26,6 +26,8 @@
 struct gpd_dev_ops {
 	int (*start)(struct device *dev);
 	int (*stop)(struct device *dev);
+	int (*save_state)(struct device *dev);
+	int (*restore_state)(struct device *dev);
 	bool (*active_wakeup)(struct device *dev);
 };