@@ -236,6 +236,7 @@ static struct rtc_device *rtc_allocate_device(void)
rtc->pie_enabled = 0;
set_bit(RTC_FEATURE_ALARM, rtc->features);
+ set_bit(RTC_FEATURE_UPDATE_INTERRUPT, rtc->features);
return rtc;
}
@@ -398,6 +399,9 @@ int __devm_rtc_register_device(struct module *owner, struct rtc_device *rtc)
if (!rtc->ops->set_alarm)
clear_bit(RTC_FEATURE_ALARM, rtc->features);
+ if (rtc->uie_unsupported)
+ clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, rtc->features);
+
if (rtc->ops->set_offset)
set_bit(RTC_FEATURE_CORRECTION, rtc->features);
@@ -561,7 +561,8 @@ int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled)
if (rtc->uie_rtctimer.enabled == enabled)
goto out;
- if (rtc->uie_unsupported || !test_bit(RTC_FEATURE_ALARM, rtc->features)) {
+ if (!test_bit(RTC_FEATURE_UPDATE_INTERRUPT, rtc->features) ||
+ !test_bit(RTC_FEATURE_ALARM, rtc->features)) {
mutex_unlock(&rtc->ops_lock);
#ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL
return rtc_dev_update_irq_enable_emul(rtc, enabled);