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rtc: add new RTC_FEATURE_ALARM_WAKEUP_ONLY feature

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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 <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20220309162301.61679-22-alexandre.belloni@bootlin.com
This commit is contained in:
Alexandre Belloni 2022-03-09 17:22:53 +01:00
parent a87a07a111
commit e99653afeb
1 changed files with 2 additions and 1 deletions
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3
include/uapi/linux/rtc.h
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@ -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