rtc/pxa: remove unnecessary private ops->ioctl()

We shouldn't implement private ops->ioctl() unless absolutely necessary.
pxa series RTC driver's ioctl() is unnecessary, since RTC subsystem has
implement the ioctl() very well,so we can only use the API of
'.alarm_irq_enable' and '.update_irq_enable' to do enable irq action.

Signed-off-by: Wan ZongShun <mcuos.com@gmail.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Eric Miao <eric.y.miao@gmail.com>
Cc: Paul Gortmaker <p_gortmaker@yahoo.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 22 insertions, 19 deletions

diff --git a/drivers/rtc/rtc-pxa.c b/drivers/rtc/rtc-pxa.c
index b15375adbb8..29e867a1aaa 100644
--- a/drivers/rtc/rtc-pxa.c
+++ b/drivers/rtc/rtc-pxa.c
@@ -235,32 +235,34 @@ static int pxa_periodic_irq_set_state(struct device *dev, int enabled)
         return 0;
 }
 
-static int pxa_rtc_ioctl(struct device *dev, unsigned int cmd,
-                unsigned long arg)
+static int pxa_alarm_irq_enable(struct device *dev, unsigned int enabled)
 {
         struct pxa_rtc *pxa_rtc = dev_get_drvdata(dev);
-        int ret = 0;
 
         spin_lock_irq(&pxa_rtc->lock);
-        switch (cmd) {
-        case RTC_AIE_OFF:
-                rtsr_clear_bits(pxa_rtc, RTSR_RDALE1);
-                break;
-        case RTC_AIE_ON:
+
+        if (enabled)
                 rtsr_set_bits(pxa_rtc, RTSR_RDALE1);
-                break;
-        case RTC_UIE_OFF:
-                rtsr_clear_bits(pxa_rtc, RTSR_HZE);
-                break;
-        case RTC_UIE_ON:
+        else
+                rtsr_clear_bits(pxa_rtc, RTSR_RDALE1);
+
+        spin_unlock_irq(&pxa_rtc->lock);
+        return 0;
+}
+
+static int pxa_update_irq_enable(struct device *dev, unsigned int enabled)
+{
+        struct pxa_rtc *pxa_rtc = dev_get_drvdata(dev);
+
+        spin_lock_irq(&pxa_rtc->lock);
+
+        if (enabled)
                 rtsr_set_bits(pxa_rtc, RTSR_HZE);
-                break;
-        default:
-                ret = -ENOIOCTLCMD;
-        }
+        else
+                rtsr_clear_bits(pxa_rtc, RTSR_HZE);
 
         spin_unlock_irq(&pxa_rtc->lock);
-        return ret;
+        return 0;
 }
 
 static int pxa_rtc_read_time(struct device *dev, struct rtc_time *tm)
@@ -339,11 +341,12 @@ static int pxa_rtc_proc(struct device *dev, struct seq_file *seq)
 static const struct rtc_class_ops pxa_rtc_ops = {
         .open = pxa_rtc_open,
         .release = pxa_rtc_release,
-        .ioctl = pxa_rtc_ioctl,
         .read_time = pxa_rtc_read_time,
         .set_time = pxa_rtc_set_time,
         .read_alarm = pxa_rtc_read_alarm,
         .set_alarm = pxa_rtc_set_alarm,
+        .alarm_irq_enable = pxa_alarm_irq_enable,
+        .update_irq_enable = pxa_update_irq_enable,
         .proc = pxa_rtc_proc,
         .irq_set_state = pxa_periodic_irq_set_state,
         .irq_set_freq = pxa_periodic_irq_set_freq,