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,
 };