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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: Feng Tang <feng.tang@intel.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
hifive-unleashed-5.1
Feng Tang 2013-01-16 00:09:48 +08:00 committed by John Stultz
parent 31ade30692
commit 9ecf37eb7a
1 changed files with 7 additions and 0 deletions
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7
drivers/rtc/class.c
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@ -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_time tm;
struct timespec delta, delta_delta;
if (has_persistent_clock())
return 0;
if (strcmp(dev_name(&rtc->dev), CONFIG_RTC_HCTOSYS_DEVICE) != 0)
return 0;
@ -88,6 +92,9 @@ static int rtc_resume(struct device *dev)
struct timespec new_system, new_rtc;
struct timespec sleep_time;
if (has_persistent_clock())
return 0;
rtc_hctosys_ret = -ENODEV;
if (strcmp(dev_name(&rtc->dev), CONFIG_RTC_HCTOSYS_DEVICE) != 0)
return 0;