rtc_timer_enqueue
ret = rtc_timer_enqueue(rtc, timer);
static int rtc_timer_enqueue(struct rtc_device *rtc, struct rtc_timer *timer);
err = rtc_timer_enqueue(rtc, &rtc->aie_timer);
err = rtc_timer_enqueue(rtc, &rtc->aie_timer);
err = rtc_timer_enqueue(rtc, &rtc->uie_rtctimer);
DEFINE_EVENT(rtc_timer_class, rtc_timer_enqueue,