107 	struct ltc2952_poweroff *data = to_ltc2952(timer, timer_wde);  in ltc2952_poweroff_timer_wde()  local
109 	if (data->kernel_panic)  in ltc2952_poweroff_timer_wde()
112 	state = gpiod_get_value(data->gpio_watchdog);  in ltc2952_poweroff_timer_wde()
113 	gpiod_set_value(data->gpio_watchdog, !state);  in ltc2952_poweroff_timer_wde()
116 	overruns = hrtimer_forward(timer, now, data->wde_interval);  in ltc2952_poweroff_timer_wde()
121 static void ltc2952_poweroff_start_wde(struct ltc2952_poweroff *data)  in ltc2952_poweroff_start_wde()  argument
123 	hrtimer_start(&data->timer_wde, data->wde_interval, HRTIMER_MODE_REL);  in ltc2952_poweroff_start_wde()
129 	struct ltc2952_poweroff *data = to_ltc2952(timer, timer_trigger);  in ltc2952_poweroff_timer_trigger()  local
131 	ltc2952_poweroff_start_wde(data);  in ltc2952_poweroff_timer_trigger()
132 	dev_info(data->dev, "executing shutdown\n");  in ltc2952_poweroff_timer_trigger()
149 	struct ltc2952_poweroff *data = dev_id;  in ltc2952_poweroff_handler()  local
151 	if (data->kernel_panic || hrtimer_active(&data->timer_wde)) {  in ltc2952_poweroff_handler()
156 	if (gpiod_get_value(data->gpio_trigger)) {  in ltc2952_poweroff_handler()
157 		hrtimer_start(&data->timer_trigger, data->trigger_delay,  in ltc2952_poweroff_handler()
160 		hrtimer_cancel(&data->timer_trigger);  in ltc2952_poweroff_handler()
171 static void ltc2952_poweroff_default(struct ltc2952_poweroff *data)  in ltc2952_poweroff_default()  argument
173 	data->wde_interval = ktime_set(0, 300L*1E6L);  in ltc2952_poweroff_default()
174 	data->trigger_delay = ktime_set(2, 500L*1E6L);  in ltc2952_poweroff_default()
176 	hrtimer_init(&data->timer_trigger, CLOCK_MONOTONIC, HRTIMER_MODE_REL);  in ltc2952_poweroff_default()
177 	data->timer_trigger.function = ltc2952_poweroff_timer_trigger;  in ltc2952_poweroff_default()
179 	hrtimer_init(&data->timer_wde, CLOCK_MONOTONIC, HRTIMER_MODE_REL);  in ltc2952_poweroff_default()
180 	data->timer_wde.function = ltc2952_poweroff_timer_wde;  in ltc2952_poweroff_default()
186 	struct ltc2952_poweroff *data = platform_get_drvdata(pdev);  in ltc2952_poweroff_init()  local
188 	ltc2952_poweroff_default(data);  in ltc2952_poweroff_init()
190 	data->gpio_watchdog = devm_gpiod_get(&pdev->dev, "watchdog",  in ltc2952_poweroff_init()
192 	if (IS_ERR(data->gpio_watchdog)) {  in ltc2952_poweroff_init()
193 		ret = PTR_ERR(data->gpio_watchdog);  in ltc2952_poweroff_init()
198 	data->gpio_kill = devm_gpiod_get(&pdev->dev, "kill", GPIOD_OUT_LOW);  in ltc2952_poweroff_init()
199 	if (IS_ERR(data->gpio_kill)) {  in ltc2952_poweroff_init()
200 		ret = PTR_ERR(data->gpio_kill);  in ltc2952_poweroff_init()
205 	data->gpio_trigger = devm_gpiod_get(&pdev->dev, "trigger", GPIOD_IN);  in ltc2952_poweroff_init()
206 	if (IS_ERR(data->gpio_trigger)) {  in ltc2952_poweroff_init()
212 		if (PTR_ERR(data->gpio_trigger) != -ENOENT)  in ltc2952_poweroff_init()
215 		data->gpio_trigger = NULL;  in ltc2952_poweroff_init()
218 	if (devm_request_irq(&pdev->dev, gpiod_to_irq(data->gpio_trigger),  in ltc2952_poweroff_init()
222 			     data)) {  in ltc2952_poweroff_init()
238 		if (data->gpio_trigger) {  in ltc2952_poweroff_init()
241 			devm_gpiod_put(&pdev->dev, data->gpio_trigger);  in ltc2952_poweroff_init()
242 			data->gpio_trigger = NULL;  in ltc2952_poweroff_init()
246 		ltc2952_poweroff_start_wde(data);  in ltc2952_poweroff_init()
255 	struct ltc2952_poweroff *data = to_ltc2952(nb, panic_notifier);  in ltc2952_poweroff_notify_panic()  local
257 	data->kernel_panic = true;  in ltc2952_poweroff_notify_panic()
264 	struct ltc2952_poweroff *data;  in ltc2952_poweroff_probe()  local
271 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);  in ltc2952_poweroff_probe()
272 	if (!data)  in ltc2952_poweroff_probe()
275 	data->dev = &pdev->dev;  in ltc2952_poweroff_probe()
276 	platform_set_drvdata(pdev, data);  in ltc2952_poweroff_probe()
283 	ltc2952_data = data;  in ltc2952_poweroff_probe()
286 	data->panic_notifier.notifier_call = ltc2952_poweroff_notify_panic;  in ltc2952_poweroff_probe()
288 				       &data->panic_notifier);  in ltc2952_poweroff_probe()
296 	struct ltc2952_poweroff *data = platform_get_drvdata(pdev);  in ltc2952_poweroff_remove()  local
299 	hrtimer_cancel(&data->timer_trigger);  in ltc2952_poweroff_remove()
300 	hrtimer_cancel(&data->timer_wde);  in ltc2952_poweroff_remove()
302 					 &data->panic_notifier);  in ltc2952_poweroff_remove()