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Commit 9ecf37eb authored by Feng Tang's avatar Feng Tang Committed by John Stultz
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rtc: Skip the suspend/resume handling if persistent clock exist 



All the RTC suspend and resume functions are to compensate the
sleep time, but this is already done in timekeeping.c if persistent
clock exist.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Arve Hjønnevåg <arve@android.com>
Signed-off-by: default avatarFeng Tang <feng.tang@intel.com>
Signed-off-by: default avatarJohn Stultz <john.stultz@linaro.org>
parent 31ade306

drivers/rtc/class.c

+7 −0
Original line number Original line Diff line number Diff line
@@ -50,6 +50,10 @@ static int rtc_suspend(struct device *dev, pm_message_t mesg) 
	struct rtc_device	*rtc = to_rtc_device(dev);

	struct rtc_device	*rtc = to_rtc_device(dev);

	struct rtc_time		tm;

	struct rtc_time		tm;

	struct timespec		delta, delta_delta;

	struct timespec		delta, delta_delta;



	if (has_persistent_clock())

		return 0;



	if (strcmp(dev_name(&rtc->dev), CONFIG_RTC_HCTOSYS_DEVICE) != 0)

	if (strcmp(dev_name(&rtc->dev), CONFIG_RTC_HCTOSYS_DEVICE) != 0)

		return 0;

		return 0;
@@ -88,6 +92,9 @@ static int rtc_resume(struct device *dev) 
	struct timespec		new_system, new_rtc;

	struct timespec		new_system, new_rtc;

	struct timespec		sleep_time;

	struct timespec		sleep_time;





	if (has_persistent_clock())

		return 0;



	rtc_hctosys_ret = -ENODEV;

	rtc_hctosys_ret = -ENODEV;

	if (strcmp(dev_name(&rtc->dev), CONFIG_RTC_HCTOSYS_DEVICE) != 0)

	if (strcmp(dev_name(&rtc->dev), CONFIG_RTC_HCTOSYS_DEVICE) != 0)

		return 0;

		return 0;