[PATCH] watchdog: mtk_wdt: Use NOIRQ_SYSTEM_SLEEP_PM_OPS()

Ao Sun aosun718 at gmail.com
Mon Jul 28 20:51:17 PDT 2025


During the device resume process, an interrupt storm occurs after
interrupts are enabled, preventing the watchdog device from being
awakened and functioning.

To ensure that the watchdog is executed before interrupts are enabled,
Use NOIRQ_SYSTEM_SLEEP_PM_OPS().

Signed-off-by: Ao Sun <aosun718 at gmail.com>
---
 drivers/watchdog/mtk_wdt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/mtk_wdt.c b/drivers/watchdog/mtk_wdt.c
index d6a6393f609d..5f2179dabd67 100644
--- a/drivers/watchdog/mtk_wdt.c
+++ b/drivers/watchdog/mtk_wdt.c
@@ -327,7 +327,7 @@ static const struct of_device_id mtk_wdt_dt_ids[] = {
 MODULE_DEVICE_TABLE(of, mtk_wdt_dt_ids);
 
 static const struct dev_pm_ops mtk_wdt_pm_ops = {
-	SET_SYSTEM_SLEEP_PM_OPS(mtk_wdt_suspend,
+	 SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(mtk_wdt_suspend,
 				mtk_wdt_resume)
 };
 
-- 
2.34.1




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