usb/typec/class.c

248 	/* Bind the port alt mode to the partner/plug alt mode. */
252 	/* Bind the partner/plug alt mode to the port alt mode. */
316  * @alt: The Alternate Mode
318  * Returns handle to the port that a cable plug or partner with @alt is
321 struct typec_port *typec_altmode2port(struct typec_altmode *alt)
323 	if (is_typec_plug(alt->dev.parent))
324 		return to_typec_port(alt->dev.parent->parent->parent);
325 	if (is_typec_partner(alt->dev.parent))
326 		return to_typec_port(alt->dev.parent->parent);
327 	if (is_typec_port(alt->dev.parent))
328 		return to_typec_port(alt->dev.parent);
337 	struct typec_altmode *alt = to_typec_altmode(dev);
339 	return sprintf(buf, "0x%08x\n", alt->vdo);
346 	struct typec_altmode *alt = to_typec_altmode(dev);
348 	return sprintf(buf, "%s\n", alt->desc ? alt->desc : "");
355 	struct typec_altmode *alt = to_typec_altmode(dev);
357 	return sprintf(buf, "%s\n", alt->active ? "yes" : "no");
403 	struct altmode *alt = to_altmode(to_typec_altmode(dev));
406 	switch (alt->roles) {
500 	struct altmode *alt = to_altmode(to_typec_altmode(dev));
503 		typec_altmode_put_partner(alt);
505 	altmode_id_remove(alt->adev.dev.parent, alt->id);
506 	kfree(alt);
521 	struct altmode *alt;
524 	alt = kzalloc(sizeof(*alt), GFP_KERNEL);
525 	if (!alt) {
530 	alt->adev.svid = desc->svid;
531 	alt->adev.mode = desc->mode;
532 	alt->adev.vdo = desc->vdo;
533 	alt->roles = desc->roles;
534 	alt->id = id;
536 	alt->attrs[0] = &dev_attr_vdo.attr;
537 	alt->attrs[1] = &dev_attr_description.attr;
538 	alt->attrs[2] = &dev_attr_active.attr;
541 		alt->attrs[3] = &dev_attr_supported_roles.attr;
542 		alt->adev.active = true; /* Enabled by default */
545 	sprintf(alt->group_name, "mode%d", desc->mode);
546 	alt->group.name = alt->group_name;
547 	alt->group.attrs = alt->attrs;
548 	alt->groups[0] = &alt->group;
550 	alt->adev.dev.parent = parent;
551 	alt->adev.dev.groups = alt->groups;
552 	alt->adev.dev.type = &typec_altmode_dev_type;
553 	dev_set_name(&alt->adev.dev, "%s.%u", dev_name(parent), id);
557 		typec_altmode_set_partner(alt);
561 		alt->adev.dev.bus = &typec_bus;
563 	/* Plug alt modes need a class to generate udev events. */
565 		alt->adev.dev.class = &typec_class;
567 	ret = device_register(&alt->adev.dev);
571 		put_device(&alt->adev.dev);
575 	return &alt->adev;
2279 	struct typec_altmode *alt;
2313 		alt = typec_port_register_altmode(port, &desc);
2314 		if (IS_ERR(alt)) {
2320 		alt->ops = ops;
2321 		typec_altmode_set_drvdata(alt, drvdata);
2322 		altmodes[index] = alt;
2331  * @max_altmodes: The maximum number of alt modes supported by the port