diff --git a/drivers/rtc/rtc-max8907.c b/drivers/rtc/rtc-max8907.c
index 8e45b3c4aa2fdb10629c90a4b23b9af6eb6bc06f..3032178bd9e675eb2652ba22c973322b2c775707 100644
--- a/drivers/rtc/rtc-max8907.c
+++ b/drivers/rtc/rtc-max8907.c
@@ -51,7 +51,7 @@ static irqreturn_t max8907_irq_handler(int irq, void *data)
 {
 	struct max8907_rtc *rtc = data;
 
-	regmap_update_bits(rtc->regmap, MAX8907_REG_ALARM0_CNTL, 0x7f, 0);
+	regmap_write(rtc->regmap, MAX8907_REG_ALARM0_CNTL, 0);
 
 	rtc_update_irq(rtc->rtc_dev, 1, RTC_IRQF | RTC_AF);
 
@@ -64,7 +64,7 @@ static void regs_to_tm(u8 *regs, struct rtc_time *tm)
 		bcd2bin(regs[RTC_YEAR1]) - 1900;
 	tm->tm_mon = bcd2bin(regs[RTC_MONTH] & 0x1f) - 1;
 	tm->tm_mday = bcd2bin(regs[RTC_DATE] & 0x3f);
-	tm->tm_wday = (regs[RTC_WEEKDAY] & 0x07) - 1;
+	tm->tm_wday = (regs[RTC_WEEKDAY] & 0x07);
 	if (regs[RTC_HOUR] & HOUR_12) {
 		tm->tm_hour = bcd2bin(regs[RTC_HOUR] & 0x01f);
 		if (tm->tm_hour == 12)
@@ -88,7 +88,7 @@ static void tm_to_regs(struct rtc_time *tm, u8 *regs)
 	regs[RTC_YEAR1] = bin2bcd(low);
 	regs[RTC_MONTH] = bin2bcd(tm->tm_mon + 1);
 	regs[RTC_DATE] = bin2bcd(tm->tm_mday);
-	regs[RTC_WEEKDAY] = tm->tm_wday + 1;
+	regs[RTC_WEEKDAY] = tm->tm_wday;
 	regs[RTC_HOUR] = bin2bcd(tm->tm_hour);
 	regs[RTC_MIN] = bin2bcd(tm->tm_min);
 	regs[RTC_SEC] = bin2bcd(tm->tm_sec);
@@ -153,7 +153,7 @@ static int max8907_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 	tm_to_regs(&alrm->time, regs);
 
 	/* Disable alarm while we update the target time */
-	ret = regmap_update_bits(rtc->regmap, MAX8907_REG_ALARM0_CNTL, 0x7f, 0);
+	ret = regmap_write(rtc->regmap, MAX8907_REG_ALARM0_CNTL, 0);
 	if (ret < 0)
 		return ret;
 
@@ -163,8 +163,7 @@ static int max8907_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 		return ret;
 
 	if (alrm->enabled)
-		ret = regmap_update_bits(rtc->regmap, MAX8907_REG_ALARM0_CNTL,
-					 0x7f, 0x7f);
+		ret = regmap_write(rtc->regmap, MAX8907_REG_ALARM0_CNTL, 0x77);
 
 	return ret;
 }