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-rw-r--r--include/linux/mfd/samsung/rtc.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/mfd/samsung/rtc.h b/include/linux/mfd/samsung/rtc.h
index 207fcfbde82..b6401e7661c 100644
--- a/include/linux/mfd/samsung/rtc.h
+++ b/include/linux/mfd/samsung/rtc.h
@@ -111,6 +111,16 @@ enum s2mps_rtc_reg {
#define RTC_TCON_MASK (1 << RTC_TCON_SHIFT)
#define S5M_RTC_TIME_EN_SHIFT 3
#define S5M_RTC_TIME_EN_MASK (1 << S5M_RTC_TIME_EN_SHIFT)
+/*
+ * UDR_T field in S5M_RTC_UDR_CON register determines the time needed
+ * for updating alarm and time registers. Default is 7.32 ms.
+ */
+#define S5M_RTC_UDR_T_SHIFT 6
+#define S5M_RTC_UDR_T_MASK (0x3 << S5M_RTC_UDR_T_SHIFT)
+#define S5M_RTC_UDR_T_7320_US (0x0 << S5M_RTC_UDR_T_SHIFT)
+#define S5M_RTC_UDR_T_1830_US (0x1 << S5M_RTC_UDR_T_SHIFT)
+#define S5M_RTC_UDR_T_3660_US (0x2 << S5M_RTC_UDR_T_SHIFT)
+#define S5M_RTC_UDR_T_450_US (0x3 << S5M_RTC_UDR_T_SHIFT)
/* RTC Hour register */
#define HOUR_PM_SHIFT 6