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| author | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2018-03-08 23:32:51 +0100 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2018-03-27 10:45:02 +0200 |
| commit | 844cba65bf92863ebdb05047eeb843d895d6b7c2 (patch) | |
| tree | 700a3225ab22cd641b024259e909e998e3caac1b /drivers/rtc/rtc-mv.c | |
| parent | b3a5ac42ab18b7d1a8f2f072ca0ee76a3b754a43 (diff) | |
| download | linux-844cba65bf92863ebdb05047eeb843d895d6b7c2.tar.gz linux-844cba65bf92863ebdb05047eeb843d895d6b7c2.tar.bz2 linux-844cba65bf92863ebdb05047eeb843d895d6b7c2.zip | |
rtc: mv: remove artificial limitation
Dates after 2038 actually fit on 32 bits. The counter will overflow in
2106. Also, it is bad practice to reset the RTC to a default value.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc/rtc-mv.c')
| -rw-r--r-- | drivers/rtc/rtc-mv.c | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/drivers/rtc/rtc-mv.c b/drivers/rtc/rtc-mv.c index 944c5c0fadd0..bc52dbb0c0e2 100644 --- a/drivers/rtc/rtc-mv.c +++ b/drivers/rtc/rtc-mv.c @@ -223,7 +223,6 @@ static int __init mv_rtc_probe(struct platform_device *pdev) struct resource *res; struct rtc_plat_data *pdata; u32 rtc_time; - u32 rtc_date; int ret = 0; pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); @@ -259,17 +258,6 @@ static int __init mv_rtc_probe(struct platform_device *pdev) } } - /* - * A date after January 19th, 2038 does not fit on 32 bits and - * will confuse the kernel and userspace. Reset to a sane date - * (January 1st, 2013) if we're after 2038. - */ - rtc_date = readl(pdata->ioaddr + RTC_DATE_REG_OFFS); - if (bcd2bin((rtc_date >> RTC_YEAR_OFFS) & 0xff) >= 38) { - dev_info(&pdev->dev, "invalid RTC date, resetting to January 1st, 2013\n"); - writel(0x130101, pdata->ioaddr + RTC_DATE_REG_OFFS); - } - pdata->irq = platform_get_irq(pdev, 0); platform_set_drvdata(pdev, pdata); |