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| author | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2015-05-14 23:39:06 +0300 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2015-06-25 02:13:36 +0300 |
| commit | 9393996761e23280f259d706133c8f0cd139fd58 (patch) | |
| tree | dd7ed7e35fe64cd5b51222b67e3750c14a8a307a /drivers/rtc/rtc-mt6397.c | |
| parent | 99c14e4df6144bca12dcac657266a7b8216aaa16 (diff) | |
| download | linux-9393996761e23280f259d706133c8f0cd139fd58.tar.xz | |
rtc: mt6397: fix build on some 32bits platforms
On some !ARM 32bits platforms, the following compilation error happens
because of the division on a 64bits value in mtk_rtc_read_time():
drivers/built-in.o: In function `mtk_rtc_read_time':
rtc-mt6397.c:(.text+0x265d13f): undefined reference to `__divdi3'
rtc-mt6397.c:(.text+0x265d150): undefined reference to `__moddi3'
Use div_s64() as done in rtc_time64_to_tm() to solve that.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Acked-by: Eddie Huang <eddie.huang@mediatek.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'drivers/rtc/rtc-mt6397.c')
| -rw-r--r-- | drivers/rtc/rtc-mt6397.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/rtc/rtc-mt6397.c b/drivers/rtc/rtc-mt6397.c index 8bed852e4961..c0090b698ff3 100644 --- a/drivers/rtc/rtc-mt6397.c +++ b/drivers/rtc/rtc-mt6397.c @@ -150,7 +150,7 @@ static int mtk_rtc_read_time(struct device *dev, struct rtc_time *tm) { time64_t time; struct mt6397_rtc *rtc = dev_get_drvdata(dev); - int sec, ret; + int days, sec, ret; do { ret = __mtk_rtc_read_time(rtc, tm, &sec); @@ -171,7 +171,8 @@ static int mtk_rtc_read_time(struct device *dev, struct rtc_time *tm) /* rtc_tm_to_time64 covert Gregorian date to seconds since * 01-01-1970 00:00:00, and this date is Thursday. */ - tm->tm_wday = (time / 86400 + 4) % 7; + days = div_s64(time, 86400); + tm->tm_wday = (days + 4) % 7; exit: return ret; |