LXR linux/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 * @init_state: the state at probe time, if found
  28 * @sleep_state: the state at suspend time, if found
  29 * @idle_state: the state at idle (runtime suspend) time, if found
  30 */
  31struct dev_pin_info {
  32        struct pinctrl *p;
  33        struct pinctrl_state *default_state;
  34        struct pinctrl_state *init_state;
  35#ifdef CONFIG_PM
  36        struct pinctrl_state *sleep_state;
  37        struct pinctrl_state *idle_state;
  38#endif
  39};
  40
  41extern int pinctrl_bind_pins(struct device *dev);
  42extern int pinctrl_init_done(struct device *dev);
  43
  44#else
  45
  46struct device;
  47
  48/* Stubs if we're not using pinctrl */
  49
  50static inline int pinctrl_bind_pins(struct device *dev)
  51{
  52        return 0;
  53}
  54
  55static inline int pinctrl_init_done(struct device *dev)
  56{
  57        return 0;
  58}
  59
  60#endif /* CONFIG_PINCTRL */
  61#endif /* PINCTRL_DEVINFO_H */
  62