diff --git a/include/linux/pm_domain.h b/include/linux/pm_domain.h
index 30f794e..2febe31 100644
--- a/include/linux/pm_domain.h
+++ b/include/linux/pm_domain.h
@@ -15,6 +15,7 @@
 #include <linux/err.h>
 #include <linux/of.h>
 #include <linux/notifier.h>
+#include <linux/cpuidle.h>
 
 enum gpd_status {
 	GPD_STATE_ACTIVE = 0,	/* PM domain is active */
@@ -45,6 +46,11 @@
 	bool (*active_wakeup)(struct device *dev);
 };
 
+struct gpd_cpu_data {
+	unsigned int saved_exit_latency;
+	struct cpuidle_state *idle_state;
+};
+
 struct generic_pm_domain {
 	struct dev_pm_domain domain;	/* PM domain operations */
 	struct list_head gpd_list_node;	/* Node in the global PM domains list */
@@ -75,6 +81,7 @@
 	bool max_off_time_changed;
 	bool cached_power_down_ok;
 	struct device_node *of_node; /* Node in device tree */
+	struct gpd_cpu_data *cpu_data;
 };
 
 static inline struct generic_pm_domain *pd_to_genpd(struct dev_pm_domain *pd)
@@ -155,6 +162,8 @@
 				  struct gpd_dev_ops *ops,
 				  struct gpd_timing_data *td);
 extern int __pm_genpd_remove_callbacks(struct device *dev, bool clear_td);
+extern int genpd_attach_cpuidle(struct generic_pm_domain *genpd, int state);
+extern int genpd_detach_cpuidle(struct generic_pm_domain *genpd);
 extern void pm_genpd_init(struct generic_pm_domain *genpd,
 			  struct dev_power_governor *gov, bool is_off);
 
@@ -211,6 +220,14 @@
 {
 	return -ENOSYS;
 }
+static inline int genpd_attach_cpuidle(struct generic_pm_domain *genpd, int st)
+{
+	return -ENOSYS;
+}
+static inline int genpd_detach_cpuidle(struct generic_pm_domain *genpd)
+{
+	return -ENOSYS;
+}
 static inline void pm_genpd_init(struct generic_pm_domain *genpd,
 				 struct dev_power_governor *gov, bool is_off)
 {