63 static int watchdog_deferred_registration_add(struct watchdog_device *wdd)  in watchdog_deferred_registration_add()  argument
65 	list_add_tail(&wdd->deferred,  in watchdog_deferred_registration_add()
70 static void watchdog_deferred_registration_del(struct watchdog_device *wdd)  in watchdog_deferred_registration_del()  argument
78 		if (wdd_tmp == wdd) {  in watchdog_deferred_registration_del()
85 static void watchdog_check_min_max_timeout(struct watchdog_device *wdd)  in watchdog_check_min_max_timeout()  argument
91 	if (wdd->min_timeout > wdd->max_timeout) {  in watchdog_check_min_max_timeout()
93 		wdd->min_timeout = 0;  in watchdog_check_min_max_timeout()
94 		wdd->max_timeout = 0;  in watchdog_check_min_max_timeout()
111 int watchdog_init_timeout(struct watchdog_device *wdd,  in watchdog_init_timeout()  argument
117 	watchdog_check_min_max_timeout(wdd);  in watchdog_init_timeout()
120 	if (!watchdog_timeout_invalid(wdd, timeout_parm) && timeout_parm) {  in watchdog_init_timeout()
121 		wdd->timeout = timeout_parm;  in watchdog_init_timeout()
131 	if (!watchdog_timeout_invalid(wdd, t) && t)  in watchdog_init_timeout()
132 		wdd->timeout = t;  in watchdog_init_timeout()
140 static int __watchdog_register_device(struct watchdog_device *wdd)  in __watchdog_register_device()  argument
144 	if (wdd == NULL || wdd->info == NULL || wdd->ops == NULL)  in __watchdog_register_device()
148 	if (wdd->ops->start == NULL || wdd->ops->stop == NULL)  in __watchdog_register_device()
151 	watchdog_check_min_max_timeout(wdd);  in __watchdog_register_device()
159 	mutex_init(&wdd->lock);  in __watchdog_register_device()
162 	if (wdd->parent) {  in __watchdog_register_device()
163 		ret = of_alias_get_id(wdd->parent->of_node, "watchdog");  in __watchdog_register_device()
174 	wdd->id = id;  in __watchdog_register_device()
176 	ret = watchdog_dev_register(wdd);  in __watchdog_register_device()
186 		wdd->id = id;  in __watchdog_register_device()
188 		ret = watchdog_dev_register(wdd);  in __watchdog_register_device()
195 	devno = wdd->cdev.dev;  in __watchdog_register_device()
196 	wdd->dev = device_create(watchdog_class, wdd->parent, devno,  in __watchdog_register_device()
197 					NULL, "watchdog%d", wdd->id);  in __watchdog_register_device()
198 	if (IS_ERR(wdd->dev)) {  in __watchdog_register_device()
199 		watchdog_dev_unregister(wdd);  in __watchdog_register_device()
201 		ret = PTR_ERR(wdd->dev);  in __watchdog_register_device()
219 int watchdog_register_device(struct watchdog_device *wdd)  in watchdog_register_device()  argument
225 		ret = __watchdog_register_device(wdd);  in watchdog_register_device()
227 		ret = watchdog_deferred_registration_add(wdd);  in watchdog_register_device()
233 static void __watchdog_unregister_device(struct watchdog_device *wdd)  in __watchdog_unregister_device()  argument
238 	if (wdd == NULL)  in __watchdog_unregister_device()
241 	devno = wdd->cdev.dev;  in __watchdog_unregister_device()
242 	ret = watchdog_dev_unregister(wdd);  in __watchdog_unregister_device()
246 	ida_simple_remove(&watchdog_ida, wdd->id);  in __watchdog_unregister_device()
247 	wdd->dev = NULL;  in __watchdog_unregister_device()
258 void watchdog_unregister_device(struct watchdog_device *wdd)  in watchdog_unregister_device()  argument
262 		__watchdog_unregister_device(wdd);  in watchdog_unregister_device()
264 		watchdog_deferred_registration_del(wdd);  in watchdog_unregister_device()
275 		struct watchdog_device *wdd;  in watchdog_deferred_registration()  local
277 		wdd = list_first_entry(&wtd_deferred_reg_list,  in watchdog_deferred_registration()
279 		list_del(&wdd->deferred);  in watchdog_deferred_registration()
280 		__watchdog_register_device(wdd);  in watchdog_deferred_registration()