mfd: sec-core: Add maximum RTC register for regmap config

Add maximum register to the regmap used by rtc-s5m driver.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

2 files changed, 4 insertions, 0 deletions

diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c
index 714e2135210e..306b3a282c29 100644
--- a/drivers/mfd/sec-core.c
+++ b/drivers/mfd/sec-core.c
@@ -141,6 +141,8 @@ static const struct regmap_config s5m8767_regmap_config = {
 static const struct regmap_config sec_rtc_regmap_config = {
         .reg_bits = 8,
         .val_bits = 8,
+
+        .max_register = SEC_RTC_REG_MAX,
 };
 
 #ifdef CONFIG_OF
diff --git a/include/linux/mfd/samsung/rtc.h b/include/linux/mfd/samsung/rtc.h
index 94b7cd6d8891..4627f59ebd84 100644
--- a/include/linux/mfd/samsung/rtc.h
+++ b/include/linux/mfd/samsung/rtc.h
@@ -43,6 +43,8 @@ enum sec_rtc_reg {
         SEC_RTC_STATUS,
         SEC_WTSR_SMPL_CNTL,
         SEC_RTC_UDR_CON,
+
+        SEC_RTC_REG_MAX,
 };
 
 #define RTC_I2C_ADDR            (0x0C >> 1)