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authorThomas Gleixner <tglx@linutronix.de>2011-04-13 01:54:09 +0200
committerThomas Gleixner <tglx@linutronix.de>2011-04-13 01:54:09 +0200
commit92f73a62a100d2068e8f327e573da01529184c18 (patch)
tree48a42be3879d8467c1860d3f14045feb6fccd64e /drivers/rtc/interface.c
parenta6360dd37e1a144ed11e6548371bade559a1e4df (diff)
parent67c1b8c6aa354aad14aad85d36508fd73d1c6361 (diff)
Merge branch 'fortglx/39/tip/timers/rtc' of git://git.linaro.org/people/jstultz/linux into timers/urgent
Diffstat (limited to 'drivers/rtc/interface.c')
-rw-r--r--drivers/rtc/interface.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 23719f0acbf6..ef6316acec43 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -375,6 +375,32 @@ int rtc_set_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
}
EXPORT_SYMBOL_GPL(rtc_set_alarm);
+/* Called once per device from rtc_device_register */
+int rtc_initialize_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
+{
+ int err;
+
+ err = rtc_valid_tm(&alarm->time);
+ if (err != 0)
+ return err;
+
+ err = mutex_lock_interruptible(&rtc->ops_lock);
+ if (err)
+ return err;
+
+ rtc->aie_timer.node.expires = rtc_tm_to_ktime(alarm->time);
+ rtc->aie_timer.period = ktime_set(0, 0);
+ if (alarm->enabled) {
+ rtc->aie_timer.enabled = 1;
+ timerqueue_add(&rtc->timerqueue, &rtc->aie_timer.node);
+ }
+ mutex_unlock(&rtc->ops_lock);
+ return err;
+}
+EXPORT_SYMBOL_GPL(rtc_initialize_alarm);
+
+
+
int rtc_alarm_irq_enable(struct rtc_device *rtc, unsigned int enabled)
{
int err = mutex_lock_interruptible(&rtc->ops_lock);