From b6cb398444bd64d28f7f25516148842913ef6594 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Wed, 21 Feb 2018 11:27:10 +0100 Subject: [PATCH] rtc: nuc900: stop validating rtc_time in .read_time The RTC core is always calling rtc_valid_tm after the read_time callback. It is not necessary to call it before returning from the callback. Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-nuc900.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/rtc/rtc-nuc900.c b/drivers/rtc/rtc-nuc900.c index 4ed8111..7da664a 100644 --- a/drivers/rtc/rtc-nuc900.c +++ b/drivers/rtc/rtc-nuc900.c @@ -102,8 +102,8 @@ static int *check_rtc_access_enable(struct nuc900_rtc *nuc900_rtc) return NULL; } -static int nuc900_rtc_bcd2bin(unsigned int timereg, - unsigned int calreg, struct rtc_time *tm) +static void nuc900_rtc_bcd2bin(unsigned int timereg, + unsigned int calreg, struct rtc_time *tm) { tm->tm_mday = bcd2bin(calreg >> 0); tm->tm_mon = bcd2bin(calreg >> 8); @@ -112,8 +112,6 @@ static int nuc900_rtc_bcd2bin(unsigned int timereg, tm->tm_sec = bcd2bin(timereg >> 0); tm->tm_min = bcd2bin(timereg >> 8); tm->tm_hour = bcd2bin(timereg >> 16); - - return rtc_valid_tm(tm); } static void nuc900_rtc_bin2bcd(struct device *dev, struct rtc_time *settm, @@ -156,7 +154,9 @@ static int nuc900_rtc_read_time(struct device *dev, struct rtc_time *tm) timeval = __raw_readl(rtc->rtc_reg + REG_RTC_TLR); clrval = __raw_readl(rtc->rtc_reg + REG_RTC_CLR); - return nuc900_rtc_bcd2bin(timeval, clrval, tm); + nuc900_rtc_bcd2bin(timeval, clrval, tm); + + return 0; } static int nuc900_rtc_set_time(struct device *dev, struct rtc_time *tm) @@ -189,7 +189,9 @@ static int nuc900_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) timeval = __raw_readl(rtc->rtc_reg + REG_RTC_TAR); carval = __raw_readl(rtc->rtc_reg + REG_RTC_CAR); - return nuc900_rtc_bcd2bin(timeval, carval, &alrm->time); + nuc900_rtc_bcd2bin(timeval, carval, &alrm->time); + + return rtc_valid_tm(&alrm->time); } static int nuc900_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) -- 2.7.4