75 int usb_role_switch_set_role(struct usb_role_switch *sw, enum usb_role role)  in usb_role_switch_set_role()  argument
79 	if (IS_ERR_OR_NULL(sw))  in usb_role_switch_set_role()
82 	if (!sw->registered)  in usb_role_switch_set_role()
85 	mutex_lock(&sw->lock);  in usb_role_switch_set_role()
87 	ret = sw->set(sw, role);  in usb_role_switch_set_role()
89 		sw->role = role;  in usb_role_switch_set_role()
90 		kobject_uevent(&sw->dev.kobj, KOBJ_CHANGE);  in usb_role_switch_set_role()
93 	mutex_unlock(&sw->lock);  in usb_role_switch_set_role()
106 enum usb_role usb_role_switch_get_role(struct usb_role_switch *sw)  in usb_role_switch_get_role()  argument
110 	if (IS_ERR_OR_NULL(sw) || !sw->registered)  in usb_role_switch_get_role()
113 	mutex_lock(&sw->lock);  in usb_role_switch_get_role()
115 	if (sw->get)  in usb_role_switch_get_role()
116 		role = sw->get(sw);  in usb_role_switch_get_role()
118 		role = sw->role;  in usb_role_switch_get_role()
120 	mutex_unlock(&sw->lock);  in usb_role_switch_get_role()
164 	struct usb_role_switch *sw;  in usb_role_switch_get()  local
166 	sw = usb_role_switch_is_parent(dev_fwnode(dev));  in usb_role_switch_get()
167 	if (!sw)  in usb_role_switch_get()
168 		sw = device_connection_find_match(dev, "usb-role-switch", NULL,  in usb_role_switch_get()
171 	if (!IS_ERR_OR_NULL(sw))  in usb_role_switch_get()
172 		WARN_ON(!try_module_get(sw->module));  in usb_role_switch_get()
174 	return sw;  in usb_role_switch_get()
187 	struct usb_role_switch *sw;  in fwnode_usb_role_switch_get()  local
189 	sw = usb_role_switch_is_parent(fwnode);  in fwnode_usb_role_switch_get()
190 	if (!sw)  in fwnode_usb_role_switch_get()
191 		sw = fwnode_connection_find_match(fwnode, "usb-role-switch",  in fwnode_usb_role_switch_get()
193 	if (!IS_ERR_OR_NULL(sw))  in fwnode_usb_role_switch_get()
194 		WARN_ON(!try_module_get(sw->module));  in fwnode_usb_role_switch_get()
196 	return sw;  in fwnode_usb_role_switch_get()
206 void usb_role_switch_put(struct usb_role_switch *sw)  in usb_role_switch_put()  argument
208 	if (!IS_ERR_OR_NULL(sw)) {  in usb_role_switch_put()
209 		module_put(sw->module);  in usb_role_switch_put()
210 		put_device(&sw->dev);  in usb_role_switch_put()
226 	struct usb_role_switch *sw = NULL;  in usb_role_switch_find_by_fwnode()  local
233 		sw = to_role_switch(dev);  in usb_role_switch_find_by_fwnode()
234 		WARN_ON(!try_module_get(sw->module));  in usb_role_switch_find_by_fwnode()
237 	return sw;  in usb_role_switch_find_by_fwnode()
245 	struct usb_role_switch *sw = to_role_switch(dev);  in usb_role_switch_is_visible()  local
247 	if (sw->allow_userspace_control)  in usb_role_switch_is_visible()
271 	struct usb_role_switch *sw = to_role_switch(dev);  in role_show()  local
272 	enum usb_role role = usb_role_switch_get_role(sw);  in role_show()
280 	struct usb_role_switch *sw = to_role_switch(dev);  in role_store()  local
293 	ret = usb_role_switch_set_role(sw, ret);  in role_store()
329 	struct usb_role_switch *sw = to_role_switch(dev);  in usb_role_switch_release()  local
331 	mutex_destroy(&sw->lock);  in usb_role_switch_release()
332 	lockdep_unregister_key(&sw->key);  in usb_role_switch_release()
333 	kfree(sw);  in usb_role_switch_release()
361 	struct usb_role_switch *sw;  in usb_role_switch_register()  local
367 	sw = kzalloc(sizeof(*sw), GFP_KERNEL);  in usb_role_switch_register()
368 	if (!sw)  in usb_role_switch_register()
371 	lockdep_register_key(&sw->key);  in usb_role_switch_register()
372 	mutex_init_with_key(&sw->lock, &sw->key);  in usb_role_switch_register()
374 	sw->allow_userspace_control = desc->allow_userspace_control;  in usb_role_switch_register()
375 	sw->usb2_port = desc->usb2_port;  in usb_role_switch_register()
376 	sw->usb3_port = desc->usb3_port;  in usb_role_switch_register()
377 	sw->udc = desc->udc;  in usb_role_switch_register()
378 	sw->set = desc->set;  in usb_role_switch_register()
379 	sw->get = desc->get;  in usb_role_switch_register()
381 	sw->module = parent->driver->owner;  in usb_role_switch_register()
382 	sw->dev.parent = parent;  in usb_role_switch_register()
383 	sw->dev.fwnode = desc->fwnode;  in usb_role_switch_register()
384 	sw->dev.class = &role_class;  in usb_role_switch_register()
385 	sw->dev.type = &usb_role_dev_type;  in usb_role_switch_register()
386 	dev_set_drvdata(&sw->dev, desc->driver_data);  in usb_role_switch_register()
387 	dev_set_name(&sw->dev, "%s-role-switch",  in usb_role_switch_register()
390 	ret = device_register(&sw->dev);  in usb_role_switch_register()
392 		put_device(&sw->dev);  in usb_role_switch_register()
396 	if (dev_fwnode(&sw->dev)) {  in usb_role_switch_register()
397 		ret = component_add(&sw->dev, &connector_ops);  in usb_role_switch_register()
399 			dev_warn(&sw->dev, "failed to add component\n");  in usb_role_switch_register()
402 	sw->registered = true;  in usb_role_switch_register()
406 	return sw;  in usb_role_switch_register()
416 void usb_role_switch_unregister(struct usb_role_switch *sw)  in usb_role_switch_unregister()  argument
418 	if (IS_ERR_OR_NULL(sw))  in usb_role_switch_unregister()
420 	sw->registered = false;  in usb_role_switch_unregister()
421 	if (dev_fwnode(&sw->dev))  in usb_role_switch_unregister()
422 		component_del(&sw->dev, &connector_ops);  in usb_role_switch_unregister()
423 	device_unregister(&sw->dev);  in usb_role_switch_unregister()
432 void usb_role_switch_set_drvdata(struct usb_role_switch *sw, void *data)  in usb_role_switch_set_drvdata()  argument
434 	dev_set_drvdata(&sw->dev, data);  in usb_role_switch_set_drvdata()
442 void *usb_role_switch_get_drvdata(struct usb_role_switch *sw)  in usb_role_switch_get_drvdata()  argument
444 	return dev_get_drvdata(&sw->dev);  in usb_role_switch_get_drvdata()