diff mbox series

[v2,5/7] rtc: stm32: change PM callbacks to "_noirq()"

Message ID 20230705174357.353616-6-valentin.caron@foss.st.com (mailing list archive)
State New, archived
Headers show
Series rtc: stm32: multiple bug fixes and improvements | expand

Commit Message

Valentin Caron July 5, 2023, 5:43 p.m. UTC 
From: Gabriel Fernandez <gabriel.fernandez@foss.st.com>

The RTC driver stops the RTCAPB clock during suspend, but the
irq handler from RTC is called before starting clock. Then we are
blocked while accessing RTC registers.

We changes PM callbacks to '_no_irq()' to disable irq during
resume callback and so irq handler will be called after the enable
of RTCAPB clock.

Signed-off-by: Gabriel Fernandez <gabriel.fernandez@foss.st.com>
Signed-off-by: Valentin Caron <valentin.caron@foss.st.com>
---
 drivers/rtc/rtc-stm32.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/rtc/rtc-stm32.c b/drivers/rtc/rtc-stm32.c
index 5ebf0b8e75f9..17e549806784 100644
--- a/drivers/rtc/rtc-stm32.c
+++ b/drivers/rtc/rtc-stm32.c
@@ -919,8 +919,9 @@  static int stm32_rtc_resume(struct device *dev)
 }
 #endif
 
-static SIMPLE_DEV_PM_OPS(stm32_rtc_pm_ops,
-			 stm32_rtc_suspend, stm32_rtc_resume);
+static const struct dev_pm_ops stm32_rtc_pm_ops = {
+	SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(stm32_rtc_suspend, stm32_rtc_resume)
+};
 
 static struct platform_driver stm32_rtc_driver = {
 	.probe		= stm32_rtc_probe,