Commit b46c5815 authored by Alexandre Belloni's avatar Alexandre Belloni
Browse files

rtc: mv: add range 



This RTC handles time from 2000-01-01 00:00:00 to 2099-12-31 23:59:59 with
a weird rollover to 2000-06-23 00:00:00.

Tested-by: default avatarGregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: default avatarAlexandre Belloni <alexandre.belloni@bootlin.com>
parent 5b25a71b

drivers/rtc/rtc-mv.c

+5 −2
Original line number Diff line number Diff line
@@ -57,7 +57,7 @@ static int mv_rtc_set_time(struct device *dev, struct rtc_time *tm) 


	rtc_reg = (bin2bcd(tm->tm_mday) << RTC_MDAY_OFFS) |

		(bin2bcd(tm->tm_mon + 1) << RTC_MONTH_OFFS) |

		(bin2bcd(tm->tm_year % 100) << RTC_YEAR_OFFS);

		(bin2bcd(tm->tm_year - 100) << RTC_YEAR_OFFS);

	writel(rtc_reg, ioaddr + RTC_DATE_REG_OFFS);



	return 0;
@@ -156,7 +156,7 @@ static int mv_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) 
			<< RTC_MONTH_OFFS;



	if (alm->time.tm_year >= 0)

		rtc_reg |= (RTC_ALARM_VALID | bin2bcd(alm->time.tm_year % 100))

		rtc_reg |= (RTC_ALARM_VALID | bin2bcd(alm->time.tm_year - 100))

			<< RTC_YEAR_OFFS;



	writel(rtc_reg, ioaddr + RTC_ALARM_DATE_REG_OFFS);
@@ -277,6 +277,9 @@ static int __init mv_rtc_probe(struct platform_device *pdev) 
		pdata->rtc->ops = &mv_rtc_ops;

	}



	pdata->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;

	pdata->rtc->range_max = RTC_TIMESTAMP_END_2099;



	ret = rtc_register_device(pdata->rtc);

	if (!ret)

		return 0;