diff options
author | Jett.Zhou <jtzhou@marvell.com> | 2011-11-30 04:26:22 (GMT) |
---|---|---|
committer | Arnd Bergmann <arnd@arndb.de> | 2011-12-28 10:42:33 (GMT) |
commit | 42874759d7494648e42e6e0465fc9c4f3752bba4 (patch) | |
tree | 0bc18d7f9c551d13f1919c5d098e4bf4e6cdc093 /drivers/rtc/rtc-sa1100.c | |
parent | 9d2d94385327f98ea69c183bb6c1d27cac49abf0 (diff) | |
download | linux-42874759d7494648e42e6e0465fc9c4f3752bba4.tar.xz |
RTC: sa1100: remove redundant code of setting alarm
In rtc generic interface of setting alarm, it will check the alarm time
value valid or not, so rtc_periodic_alarm is redundant, remove it.
Signed-off-by: Jett.Zhou <jtzhou@marvell.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/rtc/rtc-sa1100.c')
-rw-r--r-- | drivers/rtc/rtc-sa1100.c | 53 |
1 files changed, 12 insertions, 41 deletions
diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c index 6f22c1f..d268cf1 100644 --- a/drivers/rtc/rtc-sa1100.c +++ b/drivers/rtc/rtc-sa1100.c @@ -45,16 +45,6 @@ static const unsigned long RTC_FREQ = 1024; static struct rtc_time rtc_alarm; static DEFINE_SPINLOCK(sa1100_rtc_lock); -static inline int rtc_periodic_alarm(struct rtc_time *tm) -{ - return (tm->tm_year == -1) || - ((unsigned)tm->tm_mon >= 12) || - ((unsigned)(tm->tm_mday - 1) >= 31) || - ((unsigned)tm->tm_hour > 23) || - ((unsigned)tm->tm_min > 59) || - ((unsigned)tm->tm_sec > 59); -} - /* * Calculate the next alarm time given the requested alarm time mask * and the current time. @@ -82,27 +72,6 @@ static void rtc_next_alarm_time(struct rtc_time *next, struct rtc_time *now, } } -static int rtc_update_alarm(struct rtc_time *alrm) -{ - struct rtc_time alarm_tm, now_tm; - unsigned long now, time; - int ret; - - do { - now = RCNR; - rtc_time_to_tm(now, &now_tm); - rtc_next_alarm_time(&alarm_tm, &now_tm, alrm); - ret = rtc_tm_to_time(&alarm_tm, &time); - if (ret != 0) - break; - - RTSR = RTSR & (RTSR_HZE|RTSR_ALE|RTSR_AL); - RTAR = time; - } while (now != RCNR); - - return ret; -} - static irqreturn_t sa1100_rtc_interrupt(int irq, void *dev_id) { struct platform_device *pdev = to_platform_device(dev_id); @@ -146,9 +115,6 @@ static irqreturn_t sa1100_rtc_interrupt(int irq, void *dev_id) rtc_update_irq(rtc, 1, events); - if (rtsr & RTSR_AL && rtc_periodic_alarm(&rtc_alarm)) - rtc_update_alarm(&rtc_alarm); - spin_unlock(&sa1100_rtc_lock); return IRQ_HANDLED; @@ -234,16 +200,21 @@ static int sa1100_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm) static int sa1100_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) { + struct rtc_time now_tm, alarm_tm; int ret; spin_lock_irq(&sa1100_rtc_lock); - ret = rtc_update_alarm(&alrm->time); - if (ret == 0) { - if (alrm->enabled) - RTSR |= RTSR_ALE; - else - RTSR &= ~RTSR_ALE; - } + + now = RCNR; + rtc_time_to_tm(now, &now_tm); + rtc_next_alarm_time(&alarm_tm, &now_tm, alrm->time); + rtc_tm_to_time(&alarm_tm, &time); + RTAR = time; + if (alrm->enabled) + RTSR |= RTSR_ALE; + else + RTSR &= ~RTSR_ALE; + spin_unlock_irq(&sa1100_rtc_lock); return ret; |