282 	struct usb_port *peer = port_dev->peer;  in usb_port_runtime_resume()  local
294 	 * Power on our usb3 peer before this usb2 port to prevent a usb3  in usb_port_runtime_resume()
297 	if (!port_dev->is_superspeed && peer)  in usb_port_runtime_resume()
298 		pm_runtime_get_sync(&peer->dev);  in usb_port_runtime_resume()
340 	struct usb_port *peer = port_dev->peer;  in usb_port_runtime_suspend()  local
367 	 * Our peer usb3 port may now be able to suspend, so  in usb_port_runtime_suspend()
371 	if (!port_dev->is_superspeed && peer)  in usb_port_runtime_suspend()
372 		pm_runtime_put(&peer->dev);  in usb_port_runtime_suspend()
410 	if (left->peer == right && right->peer == left)  in link_peers()
413 	if (left->peer || right->peer) {  in link_peers()
414 		struct usb_port *lpeer = left->peer;  in link_peers()
415 		struct usb_port *rpeer = right->peer;  in link_peers()
423 		pr_debug("usb: failed to peer %s and %s by %s (%s:%s) (%s:%s)\n",  in link_peers()
432 	rc = sysfs_create_link(&left->dev.kobj, &right->dev.kobj, "peer");  in link_peers()
435 	rc = sysfs_create_link(&right->dev.kobj, &left->dev.kobj, "peer");  in link_peers()
437 		sysfs_remove_link(&left->dev.kobj, "peer");  in link_peers()
443 	 * setting ->peer with usb_port_runtime_suspend().  Otherwise we  in link_peers()
457 	left->peer = right;  in link_peers()
458 	right->peer = left;  in link_peers()
482 		dev_dbg(&left->dev, "failed to peer to %s (%d)\n",  in link_peers_report()
493 	WARN(right->peer != left || left->peer != right,  in unlink_peers()
500 	 * when ->peer is !NULL.  in unlink_peers()
512 	sysfs_remove_link(&left->dev.kobj, "peer");  in unlink_peers()
513 	right->peer = NULL;  in unlink_peers()
514 	sysfs_remove_link(&right->dev.kobj, "peer");  in unlink_peers()
515 	left->peer = NULL;  in unlink_peers()
526  * peer domain of the given port_dev, and if it is check to see if it
533 	struct usb_port *port_dev = p, *peer;  in match_location()  local
542 	/* peer_hcd is provisional until we verify it against the known peer */  in match_location()
547 		peer = peer_hub->ports[port1 - 1];  in match_location()
548 		if (peer && peer->location == port_dev->location) {  in match_location()
549 			link_peers_report(port_dev, peer);  in match_location()
558  * Find the peer port either via explicit platform firmware "location"
559  * data, the peer hcd for root hubs, or the upstream peer relationship
564 	struct usb_port *port_dev = hub->ports[port1 - 1], *peer;  in find_and_link_peer()  local
570 	 * If location data is available then we can only peer this port  in find_and_link_peer()
571 	 * by a location match, not the default peer (lest we create a  in find_and_link_peer()
576 		/* we link the peer in match_location() if found */  in find_and_link_peer()
596 		if (!upstream || !upstream->peer)  in find_and_link_peer()
599 		peer_hdev = upstream->peer->child;  in find_and_link_peer()
607 	 * we found a valid default peer, last check is to make sure it  in find_and_link_peer()
610 	peer = peer_hub->ports[port1 - 1];  in find_and_link_peer()
611 	if (peer && peer->location == 0)  in find_and_link_peer()
612 		link_peers_report(port_dev, peer);  in find_and_link_peer()
734 	struct usb_port *peer;  in usb_hub_remove_port_device()  local
736 	peer = port_dev->peer;  in usb_hub_remove_port_device()
737 	if (peer)  in usb_hub_remove_port_device()
738 		unlink_peers(port_dev, peer);  in usb_hub_remove_port_device()