From: Krzysztof Helt Date: Mon, 8 Sep 2008 01:25:20 +0000 (-0700) Subject: rtc-m48t59: fix setting of a year on m48t08 and m48t02 rtcs X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=d875a4b0ffad754e6d89fa561ea7dcdd79c9508b;p=openwrt%2Fstaging%2Fblogic.git rtc-m48t59: fix setting of a year on m48t08 and m48t02 rtcs Fix setting of a year in m48t08 and m48t02 clocks. They do not have century bits and setting them causes the year to overflow (bit 0x80 set). Problem found by Robert Reif on Sun Sparcstation 20. Signed-off-by: Krzysztof Helt Signed-off-by: David S. Miller --- diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c index 867c8a79a6a8..761e9d7234fa 100644 --- a/drivers/rtc/rtc-m48t59.c +++ b/drivers/rtc/rtc-m48t59.c @@ -126,7 +126,7 @@ static int m48t59_rtc_set_time(struct device *dev, struct rtc_time *tm) M48T59_WRITE((BIN2BCD(tm->tm_mon + 1) & 0x1F), M48T59_MONTH); M48T59_WRITE(BIN2BCD(tm->tm_year % 100), M48T59_YEAR); - if (tm->tm_year/100) + if (pdata->type == M48T59RTC_TYPE_M48T59 && (tm->tm_year / 100)) val = (M48T59_WDAY_CEB | M48T59_WDAY_CB); val |= (BIN2BCD(tm->tm_wday) & 0x07); M48T59_WRITE(val, M48T59_WDAY);