powersuspend: add power_suspended boolean for global access

Some routines just need the boolean for whether powersuspend is active or not. Rather than hooking to the powersuspend on every occasions, add power_suspended boolean for global access. Signed-off-by: arter97 <qkrwngud825@gmail.com>
javilonas · Jun 13, 2015 · d1b302a · d1b302a
1 parent df2e4b7
commit d1b302a
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diff --git a/include/linux/powersuspend.h b/include/linux/powersuspend.h
@@ -47,5 +47,7 @@ void unregister_power_suspend(struct power_suspend *handler);
 
 void set_power_suspend_state_panel_hook(int new_state);
 
+extern bool power_suspended;
+
 #endif
 
diff --git a/kernel/power/powersuspend.c b/kernel/power/powersuspend.c
@@ -140,6 +140,8 @@ static void power_resume(struct work_struct *work)
 	mutex_unlock(&power_suspend_lock);
 }
 
+bool power_suspended = false;
+
 void set_power_suspend_state(int new_state)
 {
 	unsigned long irqflags;
@@ -151,12 +153,14 @@ void set_power_suspend_state(int new_state)
 			pr_info("[POWERSUSPEND] state activated.\n");
 			#endif
 			state = new_state;
+			power_suspended = true;
 			queue_work(suspend_work_queue, &power_suspend_work);
 		} else if (state == POWER_SUSPEND_ACTIVE && new_state == POWER_SUSPEND_INACTIVE) {
 			#ifdef CONFIG_POWERSUSPEND_DEBUG
 			pr_info("[POWERSUSPEND] state deactivated.\n");
 			#endif
 			state = new_state;
+			power_suspended = false;
 			queue_work(suspend_work_queue, &power_resume_work);
 		}
 		spin_unlock_irqrestore(&state_lock, irqflags);