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authorMatti Halme <matti.halme@nokia.com>2009-01-15 13:50:56 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-15 16:39:36 -0800
commitcafa1d8b0c90252e73f20db1b6f32cf88e73ff17 (patch)
treebfe17370eadc0db4ff366a333cfc008f86d79003 /drivers/rtc
parent4216d0bd8fef77b7926eb065a766e2ee003acf6a (diff)
downloadlinux-cafa1d8b0c90252e73f20db1b6f32cf88e73ff17.tar.gz
rtc: rtc-twl4030 don't mask alarm interrupts on shutdown
A triggering RTC alarm should be able to power on a device that has been
powered off. This patch enables that on twl4030 by not masking the alarm
interrupt at shutdown.

Signed-off-by: Matti Halme <matti.halme@nokia.com>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Samuel Ortiz <sameo@openedhand.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/rtc-twl4030.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/rtc/rtc-twl4030.c b/drivers/rtc/rtc-twl4030.c
index 25dc3e1cedbe..ad35f76c46b7 100644
--- a/drivers/rtc/rtc-twl4030.c
+++ b/drivers/rtc/rtc-twl4030.c
@@ -482,8 +482,9 @@ static int __devexit twl4030_rtc_remove(struct platform_device *pdev)
 
 static void twl4030_rtc_shutdown(struct platform_device *pdev)
 {
-	mask_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_TIMER_M |
-			 BIT_RTC_INTERRUPTS_REG_IT_ALARM_M);
+	/* mask timer interrupts, but leave alarm interrupts on to enable
+	   power-on when alarm is triggered */
+	mask_rtc_irq_bit(BIT_RTC_INTERRUPTS_REG_IT_TIMER_M);
 }
 
 #ifdef CONFIG_PM