diff options
Diffstat (limited to 'drivers/rtc/rtc-mrst.c')
| -rw-r--r-- | drivers/rtc/rtc-mrst.c | 33 |
1 files changed, 12 insertions, 21 deletions
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c index 1db62db8469..b86bc328463 100644 --- a/drivers/rtc/rtc-mrst.c +++ b/drivers/rtc/rtc-mrst.c @@ -62,6 +62,17 @@ static inline int is_intr(u8 rtc_intr) return rtc_intr & RTC_IRQMASK; } +static inline unsigned char vrtc_is_updating(void) +{ + unsigned char uip; + unsigned long flags; + + spin_lock_irqsave(&rtc_lock, flags); + uip = (vrtc_cmos_read(RTC_FREQ_SELECT) & RTC_UIP); + spin_unlock_irqrestore(&rtc_lock, flags); + return uip; +} + /* * rtc_time's year contains the increment over 1900, but vRTC's YEAR * register can't be programmed to value larger than 0x64, so vRTC @@ -76,7 +87,7 @@ static int mrst_read_time(struct device *dev, struct rtc_time *time) { unsigned long flags; - if (rtc_is_updating()) + if (vrtc_is_updating()) mdelay(20); spin_lock_irqsave(&rtc_lock, flags); @@ -236,25 +247,6 @@ static int mrst_set_alarm(struct device *dev, struct rtc_wkalrm *t) return 0; } -static int mrst_irq_set_state(struct device *dev, int enabled) -{ - struct mrst_rtc *mrst = dev_get_drvdata(dev); - unsigned long flags; - - if (!mrst->irq) - return -ENXIO; - - spin_lock_irqsave(&rtc_lock, flags); - - if (enabled) - mrst_irq_enable(mrst, RTC_PIE); - else - mrst_irq_disable(mrst, RTC_PIE); - - spin_unlock_irqrestore(&rtc_lock, flags); - return 0; -} - /* Currently, the vRTC doesn't support UIE ON/OFF */ static int mrst_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled) { @@ -301,7 +293,6 @@ static const struct rtc_class_ops mrst_rtc_ops = { .read_alarm = mrst_read_alarm, .set_alarm = mrst_set_alarm, .proc = mrst_procfs, - .irq_set_state = mrst_irq_set_state, .alarm_irq_enable = mrst_rtc_alarm_irq_enable, }; |