include/linux/pinctrl/devinfo.h

   1 /*
   2  * Per-device information from the pin control system.
   3  * This is the stuff that get included into the device
   4  * core.
   5  *
   6  * Copyright (C) 2012 ST-Ericsson SA
   7  * Written on behalf of Linaro for ST-Ericsson
   8  * This interface is used in the core to keep track of pins.
   9  *
  10  * Author: Linus Walleij <linus.walleij@linaro.org>
  11  *
  12  * License terms: GNU General Public License (GPL) version 2
  13  */
  14
  15 #ifndef PINCTRL_DEVINFO_H
  16 #define PINCTRL_DEVINFO_H
  17
  18 #ifdef CONFIG_PINCTRL
  19
  20 /* The device core acts as a consumer toward pinctrl */
  21 #include <linux/pinctrl/consumer.h>
  22
  23 /**
  24  * struct dev_pin_info - pin state container for devices
  25  * @p: pinctrl handle for the containing device
  26  * @default_state: the default state for the handle, if found
  27  */
  28 struct dev_pin_info {
  29         struct pinctrl *p;
  30         struct pinctrl_state *default_state;
  31 };
  32
  33 extern int pinctrl_bind_pins(struct device *dev);
  34
  35 #else
  36
  37 /* Stubs if we're not using pinctrl */
  38
  39 static inline int pinctrl_bind_pins(struct device *dev)
  40 {
  41         return 0;
  42 }
  43
  44 #endif /* CONFIG_PINCTRL */
  45 #endif /* PINCTRL_DEVINFO_H */