Lines Matching refs:sw

70  * @sw: USB role switch
73  * Set USB role @role for @sw.
75 int usb_role_switch_set_role(struct usb_role_switch *sw, enum usb_role role)
79 	if (IS_ERR_OR_NULL(sw))
82 	if (!sw->registered)
85 	mutex_lock(&sw->lock);
87 	ret = sw->set(sw, role);
89 		sw->role = role;
90 		kobject_uevent(&sw->dev.kobj, KOBJ_CHANGE);
93 	mutex_unlock(&sw->lock);
101  * @sw: USB role switch
106 enum usb_role usb_role_switch_get_role(struct usb_role_switch *sw)
110 	if (IS_ERR_OR_NULL(sw) || !sw->registered)
113 	mutex_lock(&sw->lock);
115 	if (sw->get)
116 		role = sw->get(sw);
118 		role = sw->role;
120 	mutex_unlock(&sw->lock);
164 	struct usb_role_switch *sw;
166 	sw = usb_role_switch_is_parent(dev_fwnode(dev));
167 	if (!sw)
168 		sw = device_connection_find_match(dev, "usb-role-switch", NULL,
171 	if (!IS_ERR_OR_NULL(sw))
172 		WARN_ON(!try_module_get(sw->module));
174 	return sw;
187 	struct usb_role_switch *sw;
189 	sw = usb_role_switch_is_parent(fwnode);
190 	if (!sw)
191 		sw = fwnode_connection_find_match(fwnode, "usb-role-switch",
193 	if (!IS_ERR_OR_NULL(sw))
194 		WARN_ON(!try_module_get(sw->module));
196 	return sw;
202  * @sw: USB Role Switch
204  * Decrement reference count for @sw.
206 void usb_role_switch_put(struct usb_role_switch *sw)
208 	if (!IS_ERR_OR_NULL(sw)) {
209 		module_put(sw->module);
210 		put_device(&sw->dev);
226 	struct usb_role_switch *sw = NULL;
233 		sw = to_role_switch(dev);
234 		WARN_ON(!try_module_get(sw->module));
237 	return sw;
245 	struct usb_role_switch *sw = to_role_switch(dev);
247 	if (sw->allow_userspace_control)
271 	struct usb_role_switch *sw = to_role_switch(dev);
272 	enum usb_role role = usb_role_switch_get_role(sw);
280 	struct usb_role_switch *sw = to_role_switch(dev);
293 	ret = usb_role_switch_set_role(sw, ret);
329 	struct usb_role_switch *sw = to_role_switch(dev);
331 	mutex_destroy(&sw->lock);
332 	lockdep_unregister_key(&sw->key);
333 	kfree(sw);
361 	struct usb_role_switch *sw;
367 	sw = kzalloc(sizeof(*sw), GFP_KERNEL);
368 	if (!sw)
371 	lockdep_register_key(&sw->key);
372 	mutex_init_with_key(&sw->lock, &sw->key);
374 	sw->allow_userspace_control = desc->allow_userspace_control;
375 	sw->usb2_port = desc->usb2_port;
376 	sw->usb3_port = desc->usb3_port;
377 	sw->udc = desc->udc;
378 	sw->set = desc->set;
379 	sw->get = desc->get;
381 	sw->module = parent->driver->owner;
382 	sw->dev.parent = parent;
383 	sw->dev.fwnode = desc->fwnode;
384 	sw->dev.class = &role_class;
385 	sw->dev.type = &usb_role_dev_type;
386 	dev_set_drvdata(&sw->dev, desc->driver_data);
387 	dev_set_name(&sw->dev, "%s-role-switch",
390 	sw->registered = true;
392 	ret = device_register(&sw->dev);
394 		sw->registered = false;
395 		put_device(&sw->dev);
399 	if (dev_fwnode(&sw->dev)) {
400 		ret = component_add(&sw->dev, &connector_ops);
402 			dev_warn(&sw->dev, "failed to add component\n");
407 	return sw;
413  * @sw: USB Role Switch
417 void usb_role_switch_unregister(struct usb_role_switch *sw)
419 	if (IS_ERR_OR_NULL(sw))
421 	sw->registered = false;
422 	if (dev_fwnode(&sw->dev))
423 		component_del(&sw->dev, &connector_ops);
424 	device_unregister(&sw->dev);
430  * @sw: USB Role Switch
433 void usb_role_switch_set_drvdata(struct usb_role_switch *sw, void *data)
435 	dev_set_drvdata(&sw->dev, data);
441  * @sw: USB Role Switch
443 void *usb_role_switch_get_drvdata(struct usb_role_switch *sw)
445 	return dev_get_drvdata(&sw->dev);