Merge "msm: ssr: Add sysfs entry to show number of subsystem crashes" (988ac740) · Commits · e / devices / android_kernel_sony_msm8994

arch/arm/mach-msm/subsystem_restart.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -134,6 +134,7 @@ struct restart_log {
		* @id: ida
		* @restart_level: restart level (0 - panic, 1 - related, 2 - independent, etc.)
		* @restart_order: order of other devices this devices restarts with
		* @crash_count: number of times the device has crashed
		* @dentry: debugfs directory for this device
		* @do_ramdump_on_put: ramdump on subsystem_put() if true
		* @err_ready: completion variable to record error ready from subsystem
		@@ -153,6 +154,7 @@ struct subsys_device {
		int count;
		int id;
		int restart_level;
		int crash_count;
		struct subsys_soc_restart_order *restart_order;
		#ifdef CONFIG_DEBUG_FS
		struct dentry *dentry;
		@@ -183,6 +185,12 @@ static ssize_t state_show(struct device dev, struct device_attribute attr,
		return snprintf(buf, PAGE_SIZE, "%s\n", subsys_states[state]);
		}

		static ssize_t crash_count_show(struct device *dev,
		struct device_attribute attr, char buf)
		{
		return snprintf(buf, PAGE_SIZE, "%d\n", to_subsys(dev)->crash_count);
		}

		static ssize_t
		restart_level_show(struct device dev, struct device_attribute attr, char *buf)
		{
		@@ -247,6 +255,7 @@ EXPORT_SYMBOL(subsys_default_online);
		static struct device_attribute subsys_attrs[] = {
		__ATTR_RO(name),
		__ATTR_RO(state),
		__ATTR_RO(crash_count),
		__ATTR(restart_level, 0644, restart_level_show, restart_level_store),
		__ATTR_NULL,
		};
		@@ -437,6 +446,7 @@ static void subsystem_shutdown(struct subsys_device dev, void data)
		if (dev->desc->shutdown(dev->desc, true) < 0)
		panic("subsys-restart: [%p]: Failed to shutdown %s!",
		current, name);
		dev->crash_count++;
		subsys_set_state(dev, SUBSYS_OFFLINE);
		disable_all_irqs(dev);
		}