rtc: ftrtc010: handle dates after 2106

Use correct types for offset and time and use
rtc_time64_to_tm/rtc_tm_to_time64 to handle dates after 2106 properly.
Acked-by: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-ftrtc010.c

@@ -73,8 +73,8 @@ static int ftrtc010_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
 	struct ftrtc010_rtc *rtc = dev_get_drvdata(dev);
 
-	unsigned int  days, hour, min, sec;
-	unsigned long offset, time;
+	u32 days, hour, min, sec, offset;
+	timeu64_t time;
 
 	sec  = readl(rtc->rtc_base + FTRTC010_RTC_SECOND);
 	min  = readl(rtc->rtc_base + FTRTC010_RTC_MINUTE);
@@ -84,7 +84,7 @@ static int ftrtc010_rtc_read_time(struct device *dev, struct rtc_time *tm)
 
 	time = offset + days * 86400 + hour * 3600 + min * 60 + sec;
 
-	rtc_time_to_tm(time, tm);
+	rtc_time64_to_tm(time, tm);
 
 	return 0;
 }
@@ -92,13 +92,13 @@ static int ftrtc010_rtc_read_time(struct device *dev, struct rtc_time *tm)
 static int ftrtc010_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
 	struct ftrtc010_rtc *rtc = dev_get_drvdata(dev);
-	unsigned int sec, min, hour, day;
-	unsigned long offset, time;
+	u32 sec, min, hour, day, offset;
+	timeu64_t time;
 
 	if (tm->tm_year >= 2148)	/* EPOCH Year + 179 */
 		return -EINVAL;
 
-	rtc_tm_to_time(tm, &time);
+	time = rtc_tm_to_time64(tm);
 
 	sec = readl(rtc->rtc_base + FTRTC010_RTC_SECOND);
 	min = readl(rtc->rtc_base + FTRTC010_RTC_MINUTE);