include/linux/usb/phy_companion.h

   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 */