From a16147965ca7a84dc08c4457961782e06ac7cd0d Mon Sep 17 00:00:00 2001 From: Jamie Lenehan Date: Fri, 8 Dec 2006 14:49:30 +0900 Subject: [PATCH] rtc: rtc-sh: fix rtc for out-by-one for the month. The RMONCNT register, which holds the month in the RTC, takes a value between 1 and 12 while the tm_mon field in the time structures takes a value between 0 and 11. This wasn't being taken into account in rtc-sh resulting in the month being out by one. eg, on my board during boot the RTC is set to: RTC is set to Thu Jul 01 09:00:00 1999 but "hwclock -r" immediately after logging in was showing: Sun Aug 1 09:01:43 1999 0.000000 seconds Signed-off-by: Jamie Lenehan Signed-off-by: Paul Mundt --- drivers/rtc/rtc-sh.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c index 1ffc01ea730..8f22eb1aff5 100644 --- a/drivers/rtc/rtc-sh.c +++ b/drivers/rtc/rtc-sh.c @@ -268,7 +268,7 @@ static int sh_rtc_read_time(struct device *dev, struct rtc_time *tm) tm->tm_hour = BCD2BIN(readb(rtc->regbase + RHRCNT)); tm->tm_wday = BCD2BIN(readb(rtc->regbase + RWKCNT)); tm->tm_mday = BCD2BIN(readb(rtc->regbase + RDAYCNT)); - tm->tm_mon = BCD2BIN(readb(rtc->regbase + RMONCNT)); + tm->tm_mon = BCD2BIN(readb(rtc->regbase + RMONCNT)) - 1; #if defined(CONFIG_CPU_SH4) yr = readw(rtc->regbase + RYRCNT); @@ -296,7 +296,7 @@ static int sh_rtc_read_time(struct device *dev, struct rtc_time *tm) "mday=%d, mon=%d, year=%d, wday=%d\n", __FUNCTION__, tm->tm_sec, tm->tm_min, tm->tm_hour, - tm->tm_mday, tm->tm_mon, tm->tm_year, tm->tm_wday); + tm->tm_mday, tm->tm_mon + 1, tm->tm_year, tm->tm_wday); if (rtc_valid_tm(tm) < 0) dev_err(dev, "invalid date\n"); @@ -323,7 +323,7 @@ static int sh_rtc_set_time(struct device *dev, struct rtc_time *tm) writeb(BIN2BCD(tm->tm_hour), rtc->regbase + RHRCNT); writeb(BIN2BCD(tm->tm_wday), rtc->regbase + RWKCNT); writeb(BIN2BCD(tm->tm_mday), rtc->regbase + RDAYCNT); - writeb(BIN2BCD(tm->tm_mon), rtc->regbase + RMONCNT); + writeb(BIN2BCD(tm->tm_mon + 1), rtc->regbase + RMONCNT); #ifdef CONFIG_CPU_SH3 year = tm->tm_year % 100; -- 2.20.1