AMS_ISR0_ALARM_MASK
isr0 &= ~((ams->intr_mask & AMS_ISR0_ALARM_MASK) | ams->current_masked_alarm);
ams_update_intrmask(ams, AMS_ISR0_ALARM_MASK, ~alarm_mask);
writel(AMS_ISR0_ALARM_MASK, ams->base + AMS_ISR_0);