rtc/spear: fix for RTC_AIE_ON and RTC_AIE_OFF ioctl errors

Define API for '.alarm_irq_enable' to enable and disable alarm irq. This
is required by the framework else RTC_AIE_ON and RTC_AIE_OFF ioctls
return errors.

Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Cc: Deepak Sikri <deepak.sikri@st.com>
Acked-by: Rajeev Kumar <rajeev-dlh.kumar@st.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/drivers/rtc/rtc-spear.c b/drivers/rtc/rtc-spear.c
index 4f068e9ec0f82d0307d9244061177475188fb101..646937473515073ee210c04915a5073051761a68 100644 (file)
--- a/drivers/rtc/rtc-spear.c
+++ b/drivers/rtc/rtc-spear.c
@@ -327,11 +327,39 @@ static int spear_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
 
        return 0;
 }
+
+static int spear_alarm_irq_enable(struct device *dev, unsigned int enabled)
+{
+       struct platform_device *pdev = to_platform_device(dev);
+       struct rtc_device *rtc = platform_get_drvdata(pdev);
+       struct spear_rtc_config *config = dev_get_drvdata(&rtc->dev);
+       int ret = 0;
+
+       spear_rtc_clear_interrupt(config);
+
+       switch (enabled) {
+       case 0:
+               /* alarm off */
+               spear_rtc_disable_interrupt(config);
+               break;
+       case 1:
+               /* alarm on */
+               spear_rtc_enable_interrupt(config);
+               break;
+       default:
+               ret = -EINVAL;
+               break;
+       }
+
+       return ret;
+}
+
 static struct rtc_class_ops spear_rtc_ops = {
        .read_time = spear_rtc_read_time,
        .set_time = spear_rtc_set_time,
        .read_alarm = spear_rtc_read_alarm,
        .set_alarm = spear_rtc_set_alarm,
+       .alarm_irq_enable = spear_alarm_irq_enable,
 };
 
 static int __devinit spear_rtc_probe(struct platform_device *pdev)