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