drivers: rtc: rx8130ce: day alarm fix

The day alarm was not being set correctly. The day alarm should be set
using the WADA bit in the control register. This patch fixes the issue
by setting the WADA bit in the control register when setting the day alarm.

Signed-off-by: Måns Ansgariusson <Mansgariusson@gmail.com>

drivers/rtc/rtc_rx8130ce.c

@@ -316,7 +316,7 @@ static int rx8130ce_alarm_set_time(const struct device *dev, uint16_t id, uint16
 					const struct rtc_time *timeptr)
 {
 	int rc = 0;
-	bool alarm_enabled;
+	bool alarm_enabled = false;
 	struct rx8130ce_alarm alarm_time;
 	struct rx8130ce_data *data = dev->data;
 	const struct rx8130ce_config *cfg = dev->config;
@@ -358,7 +358,7 @@ static int rx8130ce_alarm_set_time(const struct device *dev, uint16_t id, uint16
 	alarm_time.minute = bin2bcd(timeptr->tm_min);
 	alarm_time.hour = bin2bcd(timeptr->tm_hour);
 	alarm_time.day = bin2bcd(timeptr->tm_mday);
-	data->reg.extension &= ~EXT_WADA;
+	data->reg.extension |= EXT_WADA;
 
 	if ((mask & RTC_ALARM_TIME_MASK_MINUTE) == 0U) {
 		alarm_time.minute |= ALARM_DISABLE;
@@ -426,15 +426,15 @@ static int rx8130ce_alarm_get_time(const struct device *dev, uint16_t id, uint16
 		*mask |= RTC_ALARM_TIME_MASK_HOUR;
 	}
 	if (data->reg.extension & EXT_WADA) {
-		timeptr->tm_wday = rtc2wday(alarm_time.wday & RX8130CE_WEEKDAYS_MASK);
-		if (!(alarm_time.wday & ALARM_DISABLE)) {
-			*mask |= RTC_ALARM_TIME_MASK_WEEKDAY;
-		}
-	} else {
-		timeptr->tm_mday = bcd2bin(alarm_time.day & RX8130CE_DAYS_MASK);
+		timeptr->tm_mday = bcd2bin(alarm_time.day);
 		if (!(alarm_time.day & ALARM_DISABLE)) {
 			*mask |= RTC_ALARM_TIME_MASK_MONTHDAY;
 		}
+	} else {
+		timeptr->tm_wday = rtc2wday(alarm_time.wday);
+		if (!(alarm_time.wday & ALARM_DISABLE)) {
+			*mask |= RTC_ALARM_TIME_MASK_WEEKDAY;
+		}
 	}
 error:
 	k_sem_give(&data->lock);