1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * phy-companion.h -- phy companion to indicate the comparator part of PHY
4  *
5  * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * Author: Kishon Vijay Abraham I <kishon@ti.com>
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16  * GNU General Public License for more details.
17  *
18  */
19 
20 #ifndef __DRIVERS_PHY_COMPANION_H
21 #define __DRIVERS_PHY_COMPANION_H
22 
23 #include <linux/usb/otg.h>
24 
25 /* phy_companion to take care of VBUS, ID and srp capabilities */
26 struct phy_companion {
27 
28 	/* effective for A-peripheral, ignored for B devices */
29 	int	(*set_vbus)(struct phy_companion *x, bool enabled);
30 
31 	/* for B devices only:  start session with A-Host */
32 	int	(*start_srp)(struct phy_companion *x);
33 };
34 
35 #endif /* __DRIVERS_PHY_COMPANION_H */
36