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path: root/drivers/rtc/rtc-mrst.c
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Diffstat (limited to 'drivers/rtc/rtc-mrst.c')
-rw-r--r--drivers/rtc/rtc-mrst.c33
1 files changed, 12 insertions, 21 deletions
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c
index 1db62db8469d..b86bc328463b 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,
};