37  * @sw: USB role switch
40  * Set USB role @role for @sw.
42 int usb_role_switch_set_role(struct usb_role_switch *sw, enum usb_role role)  in usb_role_switch_set_role()  argument
46 	if (IS_ERR_OR_NULL(sw))  in usb_role_switch_set_role()
49 	mutex_lock(&sw->lock);  in usb_role_switch_set_role()
51 	ret = sw->set(sw, role);  in usb_role_switch_set_role()
53 		sw->role = role;  in usb_role_switch_set_role()
54 		kobject_uevent(&sw->dev.kobj, KOBJ_CHANGE);  in usb_role_switch_set_role()
57 	mutex_unlock(&sw->lock);  in usb_role_switch_set_role()
65  * @sw: USB role switch
70 enum usb_role usb_role_switch_get_role(struct usb_role_switch *sw)  in usb_role_switch_get_role()  argument
74 	if (IS_ERR_OR_NULL(sw))  in usb_role_switch_get_role()
77 	mutex_lock(&sw->lock);  in usb_role_switch_get_role()
79 	if (sw->get)  in usb_role_switch_get_role()
80 		role = sw->get(sw);  in usb_role_switch_get_role()
82 		role = sw->role;  in usb_role_switch_get_role()
84 	mutex_unlock(&sw->lock);  in usb_role_switch_get_role()
125 	struct usb_role_switch *sw;  in usb_role_switch_get()  local
127 	sw = usb_role_switch_is_parent(dev_fwnode(dev));  in usb_role_switch_get()
128 	if (!sw)  in usb_role_switch_get()
129 		sw = device_connection_find_match(dev, "usb-role-switch", NULL,  in usb_role_switch_get()
132 	if (!IS_ERR_OR_NULL(sw))  in usb_role_switch_get()
133 		WARN_ON(!try_module_get(sw->dev.parent->driver->owner));  in usb_role_switch_get()
135 	return sw;  in usb_role_switch_get()
148 	struct usb_role_switch *sw;  in fwnode_usb_role_switch_get()  local
150 	sw = usb_role_switch_is_parent(fwnode);  in fwnode_usb_role_switch_get()
151 	if (!sw)  in fwnode_usb_role_switch_get()
152 		sw = fwnode_connection_find_match(fwnode, "usb-role-switch",  in fwnode_usb_role_switch_get()
154 	if (!IS_ERR_OR_NULL(sw))  in fwnode_usb_role_switch_get()
155 		WARN_ON(!try_module_get(sw->dev.parent->driver->owner));  in fwnode_usb_role_switch_get()
157 	return sw;  in fwnode_usb_role_switch_get()
163  * @sw: USB Role Switch
165  * Decrement reference count for @sw.
167 void usb_role_switch_put(struct usb_role_switch *sw)  in usb_role_switch_put()  argument
169 	if (!IS_ERR_OR_NULL(sw)) {  in usb_role_switch_put()
170 		module_put(sw->dev.parent->driver->owner);  in usb_role_switch_put()
171 		put_device(&sw->dev);  in usb_role_switch_put()
203 	struct usb_role_switch *sw = to_role_switch(dev);  in usb_role_switch_is_visible()  local
205 	if (sw->allow_userspace_control)  in usb_role_switch_is_visible()
229 	struct usb_role_switch *sw = to_role_switch(dev);  in role_show()  local
230 	enum usb_role role = usb_role_switch_get_role(sw);  in role_show()
238 	struct usb_role_switch *sw = to_role_switch(dev);  in role_store()  local
251 	ret = usb_role_switch_set_role(sw, ret);  in role_store()
288 	struct usb_role_switch *sw = to_role_switch(dev);  in usb_role_switch_release()  local
290 	kfree(sw);  in usb_role_switch_release()
318 	struct usb_role_switch *sw;  in usb_role_switch_register()  local
324 	sw = kzalloc(sizeof(*sw), GFP_KERNEL);  in usb_role_switch_register()
325 	if (!sw)  in usb_role_switch_register()
328 	mutex_init(&sw->lock);  in usb_role_switch_register()
330 	sw->allow_userspace_control = desc->allow_userspace_control;  in usb_role_switch_register()
331 	sw->usb2_port = desc->usb2_port;  in usb_role_switch_register()
332 	sw->usb3_port = desc->usb3_port;  in usb_role_switch_register()
333 	sw->udc = desc->udc;  in usb_role_switch_register()
334 	sw->set = desc->set;  in usb_role_switch_register()
335 	sw->get = desc->get;  in usb_role_switch_register()
337 	sw->dev.parent = parent;  in usb_role_switch_register()
338 	sw->dev.fwnode = desc->fwnode;  in usb_role_switch_register()
339 	sw->dev.class = role_class;  in usb_role_switch_register()
340 	sw->dev.type = &usb_role_dev_type;  in usb_role_switch_register()
341 	dev_set_drvdata(&sw->dev, desc->driver_data);  in usb_role_switch_register()
342 	dev_set_name(&sw->dev, "%s-role-switch",  in usb_role_switch_register()
345 	ret = device_register(&sw->dev);  in usb_role_switch_register()
347 		put_device(&sw->dev);  in usb_role_switch_register()
353 	return sw;  in usb_role_switch_register()
359  * @sw: USB Role Switch
363 void usb_role_switch_unregister(struct usb_role_switch *sw)  in usb_role_switch_unregister()  argument
365 	if (!IS_ERR_OR_NULL(sw))  in usb_role_switch_unregister()
366 		device_unregister(&sw->dev);  in usb_role_switch_unregister()
372  * @sw: USB Role Switch
375 void usb_role_switch_set_drvdata(struct usb_role_switch *sw, void *data)  in usb_role_switch_set_drvdata()  argument
377 	dev_set_drvdata(&sw->dev, data);  in usb_role_switch_set_drvdata()
383  * @sw: USB Role Switch
385 void *usb_role_switch_get_drvdata(struct usb_role_switch *sw)  in usb_role_switch_get_drvdata()  argument
387 	return dev_get_drvdata(&sw->dev);  in usb_role_switch_get_drvdata()