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-rw-r--r--drivers/rtc/class.c3
-rw-r--r--include/uapi/linux/rtc.h3
2 files changed, 5 insertions, 1 deletions
diff --git a/drivers/rtc/class.c b/drivers/rtc/class.c
index dbccd71589b9..2e0cbc190a8a 100644
--- a/drivers/rtc/class.c
+++ b/drivers/rtc/class.c
@@ -389,6 +389,9 @@ 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->ops->set_offset)
+ set_bit(RTC_FEATURE_CORRECTION, rtc->features);
+
rtc->owner = owner;
rtc_device_get_offset(rtc);
diff --git a/include/uapi/linux/rtc.h b/include/uapi/linux/rtc.h
index 3241f9ecc639..c83bb9a4fa4f 100644
--- a/include/uapi/linux/rtc.h
+++ b/include/uapi/linux/rtc.h
@@ -131,7 +131,8 @@ struct rtc_param {
#define RTC_FEATURE_NEED_WEEK_DAY 2
#define RTC_FEATURE_ALARM_RES_2S 3
#define RTC_FEATURE_UPDATE_INTERRUPT 4
-#define RTC_FEATURE_CNT 5
+#define RTC_FEATURE_CORRECTION 5
+#define RTC_FEATURE_CNT 6
/* parameter list */
#define RTC_PARAM_FEATURES 0