Commit 794f9899 authored Dec 04, 2013 by Deepak Katragadda Committed by Gerrit - the friendly Code Review server Dec 05, 2013

msm: ssr: Reset the crash shutdown flag on SSR completion



The crash shutdown flag is currently set for a subsystem when SSR
is triggered as a result of an err fatal interrupt or a watchdog
bite. If a kernel panic happens while restarting the subsystem in
this case, since the necessary flushing of caches/cleanup would
have been done already, we will not need to set the force_stop_gpio
again. In the case of coupled restart however, since the flag is not
set, the force_stop_gpio is set and the necessary cleanup is done for
the subsystem that is being restarted due to an SSR on a coupled
subsystem.

Currently, in the case of a coupled restart happening after a wdog
bite/ error fatal, the flushing of caches is not done since the crash
flag is still set. Reset the flag if subsystem powerup is successful
to correct this.

Change-Id: I32272762f0c27efcc0ede74578f78697c82eca20
Signed-off-by: Deepak Katragadda <dkatraga@codeaurora.org>

parent 22c343a2

arch/arm/mach-msm/subsystem_restart.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -509,6 +509,7 @@ static void subsystem_powerup(struct subsys_device dev, void data)
		panic("[%p]: Timed out waiting for error ready: %s!",
		current, name);
		subsys_set_state(dev, SUBSYS_ONLINE);
		subsys_set_crash_status(dev, false);
		}

		static int __find_subsys(struct device dev, void data)