[PATCH 4/8] rtc: rtc-s3c: Add alarm_irq_enable RTC class operation

[Kukjin Kim]

From: Taekgyun Ko <taeggyun.ko at samsung.com>

This patch updates rtc-s3c driver to support
'alarm_irq_enable' RTC class operation.

Signed-off-by: Taekgyun Ko <taeggyun.ko at samsung.com>
Signed-off-by: Sangbeom Kim <sbkim73 at samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim at samsung.com>
---
 drivers/rtc/rtc-s3c.c |   13 ++++++++-----
 1 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index 4969b60..9364dc2 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -59,18 +59,20 @@ static irqreturn_t s3c_rtc_tickirq(int irq, void *id)
 }
 
 /* Update control registers */
-static void s3c_rtc_setaie(int to)
+static int s3c_rtc_setaie(struct device *dev, unsigned int enabled)
 {
 	unsigned int tmp;
 
-	pr_debug("%s: aie=%d\n", __func__, to);
+	pr_debug("%s: aie=%d\n", __func__, enabled);
 
 	tmp = readb(s3c_rtc_base + S3C2410_RTCALM) & ~S3C2410_RTCALM_ALMEN;
 
-	if (to)
+	if (enabled)
 		tmp |= S3C2410_RTCALM_ALMEN;
 
 	writeb(tmp, s3c_rtc_base + S3C2410_RTCALM);
+
+	return 0;
 }
 
 static int s3c_rtc_setpie(struct device *dev, int enabled)
@@ -271,7 +273,7 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 
 	writeb(alrm_en, base + S3C2410_RTCALM);
 
-	s3c_rtc_setaie(alrm->enabled);
+	s3c_rtc_setaie(0, alrm->enabled);
 
 	if (alrm->enabled)
 		enable_irq_wake(s3c_rtc_alarmno);
@@ -340,6 +342,7 @@ static const struct rtc_class_ops s3c_rtcops = {
 	.set_alarm	= s3c_rtc_setalarm,
 	.irq_set_freq	= s3c_rtc_setfreq,
 	.irq_set_state	= s3c_rtc_setpie,
+	.alarm_irq_enable = s3c_rtc_setaie,
 	.proc	        = s3c_rtc_proc,
 };
 
@@ -391,7 +394,7 @@ static int __devexit s3c_rtc_remove(struct platform_device *dev)
 	rtc_device_unregister(rtc);
 
 	s3c_rtc_setpie(&dev->dev, 0);
-	s3c_rtc_setaie(0);
+	s3c_rtc_setaie(0, 0);
 
 	iounmap(s3c_rtc_base);
 	release_resource(s3c_rtc_mem);
-- 
1.6.2.5