56 	struct wm831x_wdt_drvdata *driver_data = watchdog_get_drvdata(wdt_dev);  in wm831x_wdt_start()  local
57 	struct wm831x *wm831x = driver_data->wm831x;  in wm831x_wdt_start()
60 	mutex_lock(&driver_data->lock);  in wm831x_wdt_start()
72 	mutex_unlock(&driver_data->lock);  in wm831x_wdt_start()
79 	struct wm831x_wdt_drvdata *driver_data = watchdog_get_drvdata(wdt_dev);  in wm831x_wdt_stop()  local
80 	struct wm831x *wm831x = driver_data->wm831x;  in wm831x_wdt_stop()
83 	mutex_lock(&driver_data->lock);  in wm831x_wdt_stop()
95 	mutex_unlock(&driver_data->lock);  in wm831x_wdt_stop()
102 	struct wm831x_wdt_drvdata *driver_data = watchdog_get_drvdata(wdt_dev);  in wm831x_wdt_ping()  local
103 	struct wm831x *wm831x = driver_data->wm831x;  in wm831x_wdt_ping()
107 	mutex_lock(&driver_data->lock);  in wm831x_wdt_ping()
109 	if (driver_data->update_gpio) {  in wm831x_wdt_ping()
110 		gpio_set_value_cansleep(driver_data->update_gpio,  in wm831x_wdt_ping()
111 					driver_data->update_state);  in wm831x_wdt_ping()
112 		driver_data->update_state = !driver_data->update_state;  in wm831x_wdt_ping()
137 	mutex_unlock(&driver_data->lock);  in wm831x_wdt_ping()
145 	struct wm831x_wdt_drvdata *driver_data = watchdog_get_drvdata(wdt_dev);  in wm831x_wdt_set_timeout()  local
146 	struct wm831x *wm831x = driver_data->wm831x;  in wm831x_wdt_set_timeout()
189 	struct wm831x_wdt_drvdata *driver_data;  in wm831x_wdt_probe()  local
204 	driver_data = devm_kzalloc(&pdev->dev, sizeof(*driver_data),  in wm831x_wdt_probe()
206 	if (!driver_data) {  in wm831x_wdt_probe()
211 	mutex_init(&driver_data->lock);  in wm831x_wdt_probe()
212 	driver_data->wm831x = wm831x;  in wm831x_wdt_probe()
214 	wm831x_wdt = &driver_data->wdt;  in wm831x_wdt_probe()
219 	watchdog_set_drvdata(wm831x_wdt, driver_data);  in wm831x_wdt_probe()
258 			driver_data->update_gpio = pdata->update_gpio;  in wm831x_wdt_probe()
275 	ret = watchdog_register_device(&driver_data->wdt);  in wm831x_wdt_probe()
282 	platform_set_drvdata(pdev, driver_data);  in wm831x_wdt_probe()
292 	struct wm831x_wdt_drvdata *driver_data = platform_get_drvdata(pdev);  in wm831x_wdt_remove()  local
294 	watchdog_unregister_device(&driver_data->wdt);  in wm831x_wdt_remove()