45 static unsigned int a21_wdt_get_bootstatus(struct a21_wdt_drv *drv)  in a21_wdt_get_bootstatus()  argument
49 	reset |= gpio_get_value(drv->gpios[GPIO_WD_RST0]) ? (1 << 0) : 0;  in a21_wdt_get_bootstatus()
50 	reset |= gpio_get_value(drv->gpios[GPIO_WD_RST1]) ? (1 << 1) : 0;  in a21_wdt_get_bootstatus()
51 	reset |= gpio_get_value(drv->gpios[GPIO_WD_RST2]) ? (1 << 2) : 0;  in a21_wdt_get_bootstatus()
58 	struct a21_wdt_drv *drv = watchdog_get_drvdata(wdt);  in a21_wdt_start()  local
60 	mutex_lock(&drv->lock);  in a21_wdt_start()
62 	gpio_set_value(drv->gpios[GPIO_WD_ENAB], 1);  in a21_wdt_start()
64 	mutex_unlock(&drv->lock);  in a21_wdt_start()
71 	struct a21_wdt_drv *drv = watchdog_get_drvdata(wdt);  in a21_wdt_stop()  local
73 	mutex_lock(&drv->lock);  in a21_wdt_stop()
75 	gpio_set_value(drv->gpios[GPIO_WD_ENAB], 0);  in a21_wdt_stop()
77 	mutex_unlock(&drv->lock);  in a21_wdt_stop()
84 	struct a21_wdt_drv *drv = watchdog_get_drvdata(wdt);  in a21_wdt_ping()  local
86 	mutex_lock(&drv->lock);  in a21_wdt_ping()
88 	gpio_set_value(drv->gpios[GPIO_WD_TRIG], 0);  in a21_wdt_ping()
90 	gpio_set_value(drv->gpios[GPIO_WD_TRIG], 1);  in a21_wdt_ping()
92 	mutex_unlock(&drv->lock);  in a21_wdt_ping()
100 	struct a21_wdt_drv *drv = watchdog_get_drvdata(wdt);  in a21_wdt_set_timeout()  local
113 	mutex_lock(&drv->lock);  in a21_wdt_set_timeout()
116 		gpio_set_value(drv->gpios[GPIO_WD_FAST], 1);  in a21_wdt_set_timeout()
118 		gpio_set_value(drv->gpios[GPIO_WD_FAST], 0);  in a21_wdt_set_timeout()
122 	mutex_unlock(&drv->lock);  in a21_wdt_set_timeout()
150 	struct a21_wdt_drv *drv;  in a21_wdt_probe()  local
156 	drv = devm_kzalloc(&pdev->dev, sizeof(struct a21_wdt_drv), GFP_KERNEL);  in a21_wdt_probe()
157 	if (!drv)  in a21_wdt_probe()
177 		drv->gpios[i] = val;  in a21_wdt_probe()
182 		ret = devm_gpio_request(&pdev->dev, drv->gpios[i],  in a21_wdt_probe()
188 			ret = gpio_direction_output(drv->gpios[i],  in a21_wdt_probe()
189 						gpio_get_value(drv->gpios[i]));  in a21_wdt_probe()
191 			ret = gpio_direction_input(drv->gpios[i]);  in a21_wdt_probe()
196 	mutex_init(&drv->lock);  in a21_wdt_probe()
199 	watchdog_set_drvdata(&a21_wdt, drv);  in a21_wdt_probe()
202 	reset = a21_wdt_get_bootstatus(drv);  in a21_wdt_probe()
212 	drv->wdt = a21_wdt;  in a21_wdt_probe()
213 	dev_set_drvdata(&pdev->dev, drv);  in a21_wdt_probe()
226 	mutex_destroy(&drv->lock);  in a21_wdt_probe()
233 	struct a21_wdt_drv *drv = dev_get_drvdata(&pdev->dev);  in a21_wdt_remove()  local
238 	watchdog_unregister_device(&drv->wdt);  in a21_wdt_remove()
240 	mutex_destroy(&drv->lock);  in a21_wdt_remove()
247 	struct a21_wdt_drv *drv = dev_get_drvdata(&pdev->dev);  in a21_wdt_shutdown()  local
249 	gpio_set_value(drv->gpios[GPIO_WD_ENAB], 0);  in a21_wdt_shutdown()