rtc: rtc-twl4030 don't mask alarm interrupts on suspend

This patch enables the alarm interrupt of TWL4030 RTC to wake up the
system from suspend. You can test this patch with following command.

# echo +10 > /sys/class/rtc/rtc0/wakealarm; echo mem > /sys/power/state;

Signed-off-by: Kim Kyuwon <q1.kim@samsung.com>
Acked-by: David Brownell <david-b@pacbell.net>
Cc: Kyungmin Park <kyungmin.park@samsung.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>

diff --git a/drivers/rtc/rtc-twl4030.c b/drivers/rtc/rtc-twl4030.c
index a6341e4f9a0ff9e489c017fe8ea6e7e81474dc35..9c8c70c497dcc6a515b44d71035bd313d3955116 100644 (file)
--- a/drivers/rtc/rtc-twl4030.c
+++ b/drivers/rtc/rtc-twl4030.c
@@ -495,9 +495,7 @@ static int twl4030_rtc_suspend(struct platform_device *pdev, pm_message_t state)
 {
        irqstat = rtc_irq_bits;
 
-       /* REVISIT alarm may need to wake us from sleep */
-       mask_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_TIMER_M |
-                        BIT_RTC_INTERRUPTS_REG_IT_ALARM_M);
+       mask_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_TIMER_M);
        return 0;
 }