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Commit 8de46eff authored by Daniel Lezcano's avatar Daniel Lezcano Committed by Rafael J. Wysocki
Browse files

cpuidle / imx6 : use CPUIDLE_FLAG_TIMER_STOP flag 



Use the CPUIDLE_FLAG_TIMER_STOP and let the cpuidle framework
to handle the CLOCK_EVT_NOTIFY_BROADCAST_ENTER/EXIT when entering
this state.

Signed-off-by: default avatarDaniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: default avatarSantosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent cb7094e8

arch/arm/mach-imx/cpuidle-imx6q.c

+2 −6
Original line number Original line Diff line number Diff line
@@ -21,10 +21,6 @@ static DEFINE_SPINLOCK(master_lock); 
static int imx6q_enter_wait(struct cpuidle_device *dev,

static int imx6q_enter_wait(struct cpuidle_device *dev,

			    struct cpuidle_driver *drv, int index)

			    struct cpuidle_driver *drv, int index)

{

{

	int cpu = dev->cpu;



	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);



	if (atomic_inc_return(&master) == num_online_cpus()) {

	if (atomic_inc_return(&master) == num_online_cpus()) {

		/*

		/*

		 * With this lock, we prevent other cpu to exit and enter

		 * With this lock, we prevent other cpu to exit and enter
@@ -43,7 +39,6 @@ static int imx6q_enter_wait(struct cpuidle_device *dev, 
	cpu_do_idle();

	cpu_do_idle();

done:

done:

	atomic_dec(&master);

	atomic_dec(&master);

	clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu);





	return index;

	return index;

}

}
@@ -70,7 +65,8 @@ static struct cpuidle_driver imx6q_cpuidle_driver = { 
		{

		{

			.exit_latency = 50,

			.exit_latency = 50,

			.target_residency = 75,

			.target_residency = 75,

			.flags = CPUIDLE_FLAG_TIME_VALID,

			.flags = CPUIDLE_FLAG_TIME_VALID |

			         CPUIDLE_FLAG_TIMER_STOP,

			.enter = imx6q_enter_wait,

			.enter = imx6q_enter_wait,

			.name = "WAIT",

			.name = "WAIT",

			.desc = "Clock off",

			.desc = "Clock off",