diff options
| author | Esben Haabendal <esben@geanix.com> | 2025-05-16 09:23:39 +0200 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2025-10-09 23:34:52 +0200 |
| commit | 9db26d5855d0374d4652487bfb5aacf40821c469 (patch) | |
| tree | b9c0b139b6a361f8992536b61c0994b6e55b0eca /drivers/rtc/interface.c | |
| parent | 1502fe0e97be01d18f2b30fd7fe29bb39def0e7d (diff) | |
rtc: interface: Ensure alarm irq is enabled when UIE is enabled
When setting a normal alarm, user-space is responsible for using
RTC_AIE_ON/RTC_AIE_OFF to control if alarm irq should be enabled.
But when RTC_UIE_ON is used, interrupts must be enabled so that the
requested irq events are generated.
When RTC_UIE_OFF is used, alarm irq is disabled if there are no other
alarms queued, so this commit brings symmetry to that.
Signed-off-by: Esben Haabendal <esben@geanix.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250516-rtc-uie-irq-fixes-v2-5-3de8e530a39e@geanix.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc/interface.c')
| -rw-r--r-- | drivers/rtc/interface.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 6fafe2a4ae4f..b8b298efd9a9 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -617,6 +617,10 @@ int rtc_update_irq_enable(struct rtc_device *rtc, unsigned int enabled) rtc->uie_rtctimer.node.expires = ktime_add(now, onesec); rtc->uie_rtctimer.period = ktime_set(1, 0); err = rtc_timer_enqueue(rtc, &rtc->uie_rtctimer); + if (!err && rtc->ops && rtc->ops->alarm_irq_enable) + err = rtc->ops->alarm_irq_enable(rtc->dev.parent, 1); + if (err) + goto out; } else { rtc_timer_remove(rtc, &rtc->uie_rtctimer); } |