diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index de1d8f331b035e6e0d862b9eca01a05c43fd21e8..f4492eb71701e9f60aa13271ceed603bd6625864 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -38,6 +38,7 @@ struct gpd_dev_ops {
 struct genpd_power_state {
 	s64 power_off_latency_ns;
 	s64 power_on_latency_ns;
+	s64 residency_ns;
 };
 
 struct generic_pm_domain {