diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 50e81bff37df53962f687b696debb914a10d9316..aff24892583d2e46b0b716e47f52071f71036050 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -414,6 +414,7 @@ extern asmlinkage int swsusp_arch_resume(void);
 extern void hibernation_set_ops(const struct platform_hibernation_ops *ops);
 extern int hibernate(void);
 extern bool system_entering_hibernation(void);
+extern bool system_in_hibernation(void);
 extern bool hibernation_available(void);
 asmlinkage int swsusp_save(void);
 extern struct pbe *restore_pblist;
@@ -427,6 +428,7 @@ static inline void swsusp_unset_page_free(struct page *p) {}
 static inline void hibernation_set_ops(const struct platform_hibernation_ops *ops) {}
 static inline int hibernate(void) { return -ENOSYS; }
 static inline bool system_entering_hibernation(void) { return false; }
+static inline bool system_in_hibernation(void) { return false; }
 static inline bool hibernation_available(void) { return false; }
 #endif /* CONFIG_HIBERNATION */
 
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index f5ce9f7ec132d3aab21103ec60c9e74ccce60aff..72ef9df2a29cde448f4dba6e19f4443c9ac8c4f4 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -104,6 +104,15 @@ bool system_entering_hibernation(void)
 }
 EXPORT_SYMBOL(system_entering_hibernation);
 
+/* To let some devices or syscore know if system carrying out hibernation*/
+static bool carry_out_hibernation;
+
+bool system_in_hibernation(void)
+{
+	return carry_out_hibernation;
+}
+EXPORT_SYMBOL(system_in_hibernation);
+
 #ifdef CONFIG_PM_DEBUG
 static void hibernation_debug_sleep(void)
 {
@@ -711,6 +720,7 @@ int hibernate(void)
 	}
 
 	pr_info("hibernation entry\n");
+	carry_out_hibernation = true;
 	pm_prepare_console();
 	error = __pm_notifier_call_chain(PM_HIBERNATION_PREPARE, -1, &nr_calls);
 	if (error) {
@@ -781,6 +791,7 @@ int hibernate(void)
 	atomic_inc(&snapshot_device_available);
  Unlock:
 	unlock_system_sleep();
+	carry_out_hibernation = false;
 	pr_info("hibernation exit\n");
 
 	return error;