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| author | John Stultz <john.stultz@linaro.org> | 2012-04-20 12:31:45 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-04-20 14:56:36 -0700 |
| commit | 57c498fa5df05e4bd410c101795368439fec7b4e (patch) | |
| tree | d4630cd56319d4ff21b5086b0661758a740bb8b9 | |
| parent | e2d8ccef0a8e8aedaf401edca6ad54663b0da24b (diff) | |
| download | lwn-57c498fa5df05e4bd410c101795368439fec7b4e.tar.gz lwn-57c498fa5df05e4bd410c101795368439fec7b4e.zip | |
alarmtimer: Provide accessor to alarmtimer rtc device
The Android alarm interface provides a settime call that sets both
the alarmtimer RTC device and CLOCK_REALTIME to the same value.
Since there may be multiple rtc devices, provide a hook to access the
one the alarmtimer infrastructure is using.
CC: Colin Cross <ccross@android.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Android Kernel Team <kernel-team@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | include/linux/alarmtimer.h | 3 | ||||
| -rw-r--r-- | kernel/time/alarmtimer.c | 4 |
2 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/alarmtimer.h b/include/linux/alarmtimer.h index 975009e1cbe6..96c5c249b086 100644 --- a/include/linux/alarmtimer.h +++ b/include/linux/alarmtimer.h @@ -76,4 +76,7 @@ static inline int alarmtimer_callback_running(struct alarm *timer) } +/* Provide way to access the rtc device being used by alarmtimers */ +struct rtc_device *alarmtimer_get_rtcdev(void); + #endif diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c index 8a538c55fc7b..aa27d391bfc8 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -59,7 +59,7 @@ static DEFINE_SPINLOCK(rtcdev_lock); * If one has not already been chosen, it checks to see if a * functional rtc device is available. */ -static struct rtc_device *alarmtimer_get_rtcdev(void) +struct rtc_device *alarmtimer_get_rtcdev(void) { unsigned long flags; struct rtc_device *ret; @@ -115,7 +115,7 @@ static void alarmtimer_rtc_interface_remove(void) class_interface_unregister(&alarmtimer_rtc_interface); } #else -static inline struct rtc_device *alarmtimer_get_rtcdev(void) +struct rtc_device *alarmtimer_get_rtcdev(void) { return NULL; } |