From: Johan Hovold <jhovold@gmail.com>
Date: Thu, 21 Nov 2013 22:32:04 +0000 (-0800)
Subject: ARM: drivers/rtc/rtc-at91rm9200.c: disable interrupts at shutdown
X-Git-Tag: v3.13-rc1~17^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=51a0d036f995585e8c5c30797d5bce28645d9dd7;p=pandora-kernel.git

ARM: drivers/rtc/rtc-at91rm9200.c: disable interrupts at shutdown

Make sure RTC-interrupts are disabled at shutdown.

As the RTC is generally powered by backup power (VDDBU), its interrupts
are not disabled on wake-up, user, watchdog or software reset.  This
could cause troubles on other systems (e.g.  older kernels) if an
interrupt occurs before a handler has been installed at next boot.

Let us be well-behaved and disable them on clean shutdowns at least (as
do the RTT-based rtc-at91sam9 driver).

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Andrew Victor <linux@maxim.org.za>
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>
---

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