Set RTC_FEATURE_UPDATE_INTERRUPT by default and clear it when it is not
supported.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
---
drivers/rtc/class.c | 4 ++++
drivers/rtc/interface.c | 3 ++-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index 2e0cbc190a8a..4b460c61f1d8 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -232,6 +232,7 @@ 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;
}
@@ -389,6 +390,9 @@ 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);
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 9a2bd4947007..d005623e6eb3 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -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);--
2.31.1