rtc: rx8025: only handle dates between 2000 and 2099
The hardware is only capable of handling dates between 2000 and 2099, enforce that. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
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Родитель
2ddd18693c
Коммит
32672c5595
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@ -188,10 +188,7 @@ static int rx8025_get_time(struct device *dev, struct rtc_time *dt)
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dt->tm_mday = bcd2bin(date[RX8025_REG_MDAY] & 0x3f);
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dt->tm_mon = bcd2bin(date[RX8025_REG_MONTH] & 0x1f) - 1;
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dt->tm_year = bcd2bin(date[RX8025_REG_YEAR]);
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if (dt->tm_year < 70)
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dt->tm_year += 100;
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dt->tm_year = bcd2bin(date[RX8025_REG_YEAR]) + 100;
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dev_dbg(dev, "%s: date %ds %dm %dh %dmd %dm %dy\n", __func__,
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dt->tm_sec, dt->tm_min, dt->tm_hour,
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@ -205,11 +202,8 @@ static int rx8025_set_time(struct device *dev, struct rtc_time *dt)
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struct rx8025_data *rx8025 = dev_get_drvdata(dev);
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u8 date[7];
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/*
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* BUG: The HW assumes every year that is a multiple of 4 to be a leap
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* year. Next time this is wrong is 2100, which will not be a leap
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* year.
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*/
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if ((dt->tm_year < 100) || (dt->tm_year > 199))
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return -EINVAL;
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/*
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* Here the read-only bits are written as "0". I'm not sure if that
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@ -226,7 +220,7 @@ static int rx8025_set_time(struct device *dev, struct rtc_time *dt)
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date[RX8025_REG_WDAY] = bin2bcd(dt->tm_wday);
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date[RX8025_REG_MDAY] = bin2bcd(dt->tm_mday);
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date[RX8025_REG_MONTH] = bin2bcd(dt->tm_mon + 1);
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date[RX8025_REG_YEAR] = bin2bcd(dt->tm_year % 100);
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date[RX8025_REG_YEAR] = bin2bcd(dt->tm_year - 100);
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dev_dbg(dev,
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"%s: write 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x\n",
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