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: Gregory CLEMENT <gregory.clement@bootlin.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
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@ -57,7 +57,7 @@ static int mv_rtc_set_time(struct device *dev, struct rtc_time *tm)
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rtc_reg = (bin2bcd(tm->tm_mday) << RTC_MDAY_OFFS) |
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(bin2bcd(tm->tm_mon + 1) << RTC_MONTH_OFFS) |
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(bin2bcd(tm->tm_year % 100) << RTC_YEAR_OFFS);
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(bin2bcd(tm->tm_year - 100) << RTC_YEAR_OFFS);
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writel(rtc_reg, ioaddr + RTC_DATE_REG_OFFS);
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return 0;
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@ -156,7 +156,7 @@ static int mv_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
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<< RTC_MONTH_OFFS;
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if (alm->time.tm_year >= 0)
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rtc_reg |= (RTC_ALARM_VALID | bin2bcd(alm->time.tm_year % 100))
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rtc_reg |= (RTC_ALARM_VALID | bin2bcd(alm->time.tm_year - 100))
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<< RTC_YEAR_OFFS;
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writel(rtc_reg, ioaddr + RTC_ALARM_DATE_REG_OFFS);
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@ -277,6 +277,9 @@ static int __init mv_rtc_probe(struct platform_device *pdev)
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pdata->rtc->ops = &mv_rtc_ops;
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}
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pdata->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
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pdata->rtc->range_max = RTC_TIMESTAMP_END_2099;
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ret = rtc_register_device(pdata->rtc);
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if (!ret)
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return 0;
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