53 	struct wm831x_wdt_drvdata *driver_data = watchdog_get_drvdata(wdt_dev);  in wm831x_wdt_start()  local
54 	struct wm831x *wm831x = driver_data->wm831x;  in wm831x_wdt_start()
57 	mutex_lock(&driver_data->lock);  in wm831x_wdt_start()
69 	mutex_unlock(&driver_data->lock);  in wm831x_wdt_start()
76 	struct wm831x_wdt_drvdata *driver_data = watchdog_get_drvdata(wdt_dev);  in wm831x_wdt_stop()  local
77 	struct wm831x *wm831x = driver_data->wm831x;  in wm831x_wdt_stop()
80 	mutex_lock(&driver_data->lock);  in wm831x_wdt_stop()
92 	mutex_unlock(&driver_data->lock);  in wm831x_wdt_stop()
99 	struct wm831x_wdt_drvdata *driver_data = watchdog_get_drvdata(wdt_dev);  in wm831x_wdt_ping()  local
100 	struct wm831x *wm831x = driver_data->wm831x;  in wm831x_wdt_ping()
104 	mutex_lock(&driver_data->lock);  in wm831x_wdt_ping()
106 	if (driver_data->update_gpio) {  in wm831x_wdt_ping()
107 		gpio_set_value_cansleep(driver_data->update_gpio,  in wm831x_wdt_ping()
108 					driver_data->update_state);  in wm831x_wdt_ping()
109 		driver_data->update_state = !driver_data->update_state;  in wm831x_wdt_ping()
134 	mutex_unlock(&driver_data->lock);  in wm831x_wdt_ping()
142 	struct wm831x_wdt_drvdata *driver_data = watchdog_get_drvdata(wdt_dev);  in wm831x_wdt_set_timeout()  local
143 	struct wm831x *wm831x = driver_data->wm831x;  in wm831x_wdt_set_timeout()
186 	struct wm831x_wdt_drvdata *driver_data;  in wm831x_wdt_probe()  local
201 	driver_data = devm_kzalloc(&pdev->dev, sizeof(*driver_data),  in wm831x_wdt_probe()
203 	if (!driver_data)  in wm831x_wdt_probe()
206 	mutex_init(&driver_data->lock);  in wm831x_wdt_probe()
207 	driver_data->wm831x = wm831x;  in wm831x_wdt_probe()
209 	wm831x_wdt = &driver_data->wdt;  in wm831x_wdt_probe()
215 	watchdog_set_drvdata(wm831x_wdt, driver_data);  in wm831x_wdt_probe()
254 			driver_data->update_gpio = pdata->update_gpio;  in wm831x_wdt_probe()
271 	ret = devm_watchdog_register_device(&pdev->dev, &driver_data->wdt);  in wm831x_wdt_probe()