[PATCH] rtc: amlogic-a4: clear unsupported update interrupt feature

[Xianwei Zhao via B4 Relay]

From: Xianwei Zhao <xianwei.zhao at amlogic.com>

The Amlogic A4 RTC does not support update interrupt. Clear
RTC_FEATURE_UPDATE_INTERRUPT before registering the RTC device to
prevent userspace from enabling an unsupported RTC UIE function.

Signed-off-by: Xianwei Zhao <xianwei.zhao at amlogic.com>
---
Clear RTC_FEATURE_UPDATE_INTERRUPT before registering the RTC device.
---
 drivers/rtc/rtc-amlogic-a4.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/rtc/rtc-amlogic-a4.c b/drivers/rtc/rtc-amlogic-a4.c
index 50938c35af36..116cf095a9e9 100644
--- a/drivers/rtc/rtc-amlogic-a4.c
+++ b/drivers/rtc/rtc-amlogic-a4.c
@@ -379,6 +379,7 @@ static int aml_rtc_probe(struct platform_device *pdev)
 	rtc->rtc_dev->ops = &aml_rtc_ops;
 	rtc->rtc_dev->range_min = 0;
 	rtc->rtc_dev->range_max = U32_MAX;
+	clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, rtc->rtc_dev->features);
 
 	return devm_rtc_register_device(rtc->rtc_dev);
 }

---
base-commit: 851d961ff248218f681c53cf0f7f08cf8201a117
change-id: 20260624-rtc-feature-03ce3f3843a9

Best regards,
-- 
Xianwei Zhao <xianwei.zhao at amlogic.com>