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 */