From: Shiraz Hashim <shiraz.hashim@st.com>
Date: Fri, 23 Mar 2012 22:02:29 +0000 (-0700)
Subject: rtc/spear: fix for RTC_AIE_ON and RTC_AIE_OFF ioctl errors
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=131f8b75f1c00a5a822ff2103db588466e942490;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git

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 4f068e9ec0f8..646937473515 100644
--- 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)