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Commit 136a448a authored by Deepak Katragadda's avatar Deepak Katragadda
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msm: ssr: Add flag to differentiate between subsys_stop/shutdown 



Currently, the drivers that have registered for notifications
regarding the subsystems have no way to determine whether the
subsystem is being restarted or just shutdown.
Send the force_stop flag along with the *_SHUTDOWN notifier
during SSR. Drivers can then perform different operations based
on the value of force_stop.

Change-Id: I40e3ce3c90fab438c492dd5468de2a3df360f1e3
Signed-off-by: default avatarDeepak Katragadda <dkatraga@codeaurora.org>
parent d96f7618

arch/arm/mach-msm/subsystem_restart.c

+5 −2
Original line number Diff line number Diff line
@@ -690,6 +690,7 @@ static void subsystem_restart_wq_func(struct work_struct *work) 
	struct subsys_tracking *track;

	unsigned count;

	unsigned long flags;

	bool force_stop = true;



	/*

	 * It's OK to not take the registration lock at this point.
@@ -718,9 +719,11 @@ static void subsystem_restart_wq_func(struct work_struct *work) 


	pr_debug("[%p]: Starting restart sequence for %s\n", current,

			desc->name);

	notify_each_subsys_device(list, count, SUBSYS_BEFORE_SHUTDOWN, NULL);

	notify_each_subsys_device(list, count, SUBSYS_BEFORE_SHUTDOWN,

							(void *)force_stop);

	for_each_subsys_device(list, count, NULL, subsystem_shutdown);

	notify_each_subsys_device(list, count, SUBSYS_AFTER_SHUTDOWN, NULL);

	notify_each_subsys_device(list, count, SUBSYS_AFTER_SHUTDOWN,

							(void *)force_stop);



	notify_each_subsys_device(list, count, SUBSYS_RAMDUMP_NOTIFICATION,

							  &enable_ramdumps);