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Diffstat (limited to 'include/uapi/linux/rtc.h')
-rw-r--r--include/uapi/linux/rtc.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/rtc.h b/include/uapi/linux/rtc.h
index 83bba58d47f4..fa9aff91cbf2 100644
--- a/include/uapi/linux/rtc.h
+++ b/include/uapi/linux/rtc.h
@@ -99,6 +99,7 @@ struct rtc_pll_info {
#define RTC_VL_BACKUP_LOW _BITUL(1) /* Backup voltage is low */
#define RTC_VL_BACKUP_EMPTY _BITUL(2) /* Backup empty or not present */
#define RTC_VL_ACCURACY_LOW _BITUL(3) /* Voltage is low, RTC accuracy is reduced */
+#define RTC_VL_BACKUP_SWITCH _BITUL(4) /* Backup switchover happened */
#define RTC_VL_READ _IOR('p', 0x13, unsigned int) /* Voltage low detection */
#define RTC_VL_CLR _IO('p', 0x14) /* Clear voltage low information */