include/linux/extcon/of_extcon.h

   1 /*
   2  * OF helpers for External connector (extcon) framework
   3  *
   4  * Copyright (C) 2013 Texas Instruments, Inc.
   5  * Kishon Vijay Abraham I <kishon@ti.com>
   6  *
   7  * Copyright (C) 2013 Samsung Electronics
   8  * Chanwoo Choi <cw00.choi@samsung.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  */
  15
  16 #ifndef __LINUX_OF_EXTCON_H
  17 #define __LINUX_OF_EXTCON_H
  18
  19 #include <linux/err.h>
  20
  21 #if IS_ENABLED(CONFIG_OF_EXTCON)
  22 extern struct extcon_dev
  23         *of_extcon_get_extcon_dev(struct device *dev, int index);
  24 #else
  25 static inline struct extcon_dev
  26         *of_extcon_get_extcon_dev(struct device *dev, int index)
  27 {
  28         return ERR_PTR(-ENOSYS);
  29 }
  30 #endif /* CONFIG_OF_EXTCON */
  31 #endif /* __LINUX_OF_EXTCON_H */