tree d0923396755a299e0c21066575ace82b93697429
parent 5f9679d29c7959445d4af1eb85ee55e4ebad4a93
author Rabin Vincent <rabin.vincent@stericsson.com> 1321956194 +0100
committer John Stultz <john.stultz@linaro.org> 1327635702 -0800

rtc: Disable the alarm in the hardware (v2)

Currently, the RTC code does not disable the alarm in the hardware.

This means that after a sequence such as the one below (the files are in the
RTC sysfs), the box will boot up after 2 minutes even though we've
asked for the alarm to be turned off.

	# echo $((`cat since_epoch`)+120) > wakealarm
	# echo 0 > wakealarm
	# poweroff

Fix this by disabling the alarm when there are no timers to run.

The original version of this patch was reverted. This version
disables the irq directly instead of setting a disabled timer
in the future.

Cc: stable@kernel.org
Cc: John Stultz <john.stultz@linaro.org>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
[Merged in the second revision from Rabin]
Signed-off-by: John Stultz <john.stultz@linaro.org>