quoted

rtc_24hr_mode is set to 1 in max77686_rtc_probe()->max77686_rtc_init_reg()

before being read and is never set back to 0 again. As such, it is de facto
a constant.

Remove the variable and the unreachable code.

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
---
 drivers/rtc/rtc-max77686.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/rtc/rtc-max77686.c b/drivers/rtc/rtc-max77686.c
index 7e765207f28e..9901c596998a 100644
--- a/drivers/rtc/rtc-max77686.c
+++ b/drivers/rtc/rtc-max77686.c

@@ -99,7 +99,6 @@ struct max77686_rtc_info {
 
 	int rtc_irq;
 	int virq;
-	int rtc_24hr_mode;
 };
 
 enum MAX77686_RTC_OP {

@@ -278,13 +277,7 @@ static void max77686_rtc_data_to_tm(u8 *data, struct rtc_time *tm,
 
 	tm->tm_sec = data[RTC_SEC] & mask;
 	tm->tm_min = data[RTC_MIN] & mask;
-	if (info->rtc_24hr_mode) {
-		tm->tm_hour = data[RTC_HOUR] & 0x1f;
-	} else {
-		tm->tm_hour = data[RTC_HOUR] & 0x0f;
-		if (data[RTC_HOUR] & HOUR_PM_MASK)

-			tm->tm_hour += 12;
-	}
+	tm->tm_hour = data[RTC_HOUR] & 0x1f;
 
 	/* Only a single bit is set in data[], so fls() would be equivalent */
 	tm->tm_wday = ffs(data[RTC_WEEKDAY] & mask) - 1;

@@ -662,8 +655,6 @@ static int max77686_rtc_init_reg(struct max77686_rtc_info *info)
 	data[0] = (1 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
 	data[1] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
 
-	info->rtc_24hr_mode = 1;
-
 	ret = regmap_bulk_write(info->rtc_regmap,
 				info->drv_data->map[REG_RTC_CONTROLM],
 				data, ARRAY_SIZE(data));

-- 
2.25.1