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 */
  28struct dev_pin_info {
  29        struct pinctrl *p;
  30        struct pinctrl_state *default_state;
  31#ifdef CONFIG_PM
  32        struct pinctrl_state *sleep_state;
  33        struct pinctrl_state *idle_state;
  34#endif
  35};
  36
  37extern int pinctrl_bind_pins(struct device *dev);
  38
  39#else
  40
  41/* Stubs if we're not using pinctrl */
  42
  43static inline int pinctrl_bind_pins(struct device *dev)
  44{
  45        return 0;
  46}
  47
  48#endif /* CONFIG_PINCTRL */
  49#endif /* PINCTRL_DEVINFO_H */
  50