rtc: add new RTC_FEATURE_ALARM_WAKEUP_ONLY feature

Some RTCs have an IRQ pin that is not connected to a CPU interrupt but rather directly to a PMIC or power supply. In that case, it is still useful to be able to set alarms but we shouldn't expect interrupts. Signed-off-by: Alexandre Belloni <[email protected]> Link: https://lore.kernel.org/r/[email protected]
LoveHeat · Mar 23, 2022 · e99653a · e99653a
1 parent a87a07a
commit e99653a
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/include/uapi/linux/rtc.h b/include/uapi/linux/rtc.h
@@ -133,7 +133,8 @@ struct rtc_param {
 #define RTC_FEATURE_UPDATE_INTERRUPT	4
 #define RTC_FEATURE_CORRECTION		5
 #define RTC_FEATURE_BACKUP_SWITCH_MODE	6
-#define RTC_FEATURE_CNT			7
+#define RTC_FEATURE_ALARM_WAKEUP_ONLY	7
+#define RTC_FEATURE_CNT			8
 
 /* parameter list */
 #define RTC_PARAM_FEATURES		0