drivers/rtc/rtc-max77686.c: use devm_regmap_init_i2c()

This driver already uses other devm_* APIs.
Convert regmap_init_i2c too.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Chiwoong Byun <woong.byun@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/rtc/rtc-max77686.c b/drivers/rtc/rtc-max77686.c
index fb08b89..771812d 100644
--- a/drivers/rtc/rtc-max77686.c
+++ b/drivers/rtc/rtc-max77686.c
@@ -514,7 +514,7 @@
 	info->dev = &pdev->dev;
 	info->max77686 = max77686;
 	info->rtc = max77686->rtc;
-	info->max77686->rtc_regmap = regmap_init_i2c(info->max77686->rtc,
+	info->max77686->rtc_regmap = devm_regmap_init_i2c(info->max77686->rtc,
 					 &max77686_rtc_regmap_config);
 	if (IS_ERR(info->max77686->rtc_regmap)) {
 		ret = PTR_ERR(info->max77686->rtc_regmap);