LXR linux/include/linux/pinctrl/devinfo.h

   1/* SPDX-License-Identifier: GPL-2.0-only */
   2/*
   3 * Per-device information from the pin control system.
   4 * This is the stuff that get included into the device
   5 * core.
   6 *
   7 * Copyright (C) 2012 ST-Ericsson SA
   8 * Written on behalf of Linaro for ST-Ericsson
   9 * This interface is used in the core to keep track of pins.
  10 *
  11 * Author: Linus Walleij <linus.walleij@linaro.org>
  12 */
  13
  14#ifndef PINCTRL_DEVINFO_H
  15#define PINCTRL_DEVINFO_H
  16
  17#ifdef CONFIG_PINCTRL
  18
  19/* The device core acts as a consumer toward pinctrl */
  20#include <linux/pinctrl/consumer.h>
  21
  22/**
  23 * struct dev_pin_info - pin state container for devices
  24 * @p: pinctrl handle for the containing device
  25 * @default_state: the default state for the handle, if found
  26 * @init_state: the state at probe time, if found
  27 * @sleep_state: the state at suspend time, if found
  28 * @idle_state: the state at idle (runtime suspend) time, if found
  29 */
  30struct dev_pin_info {
  31        struct pinctrl *p;
  32        struct pinctrl_state *default_state;
  33        struct pinctrl_state *init_state;
  34#ifdef CONFIG_PM
  35        struct pinctrl_state *sleep_state;
  36        struct pinctrl_state *idle_state;
  37#endif
  38};
  39
  40extern int pinctrl_bind_pins(struct device *dev);
  41extern int pinctrl_init_done(struct device *dev);
  42
  43#else
  44
  45struct device;
  46
  47/* Stubs if we're not using pinctrl */
  48
  49static inline int pinctrl_bind_pins(struct device *dev)
  50{
  51        return 0;
  52}
  53
  54static inline int pinctrl_init_done(struct device *dev)
  55{
  56        return 0;
  57}
  58
  59#endif /* CONFIG_PINCTRL */
  60#endif /* PINCTRL_DEVINFO_H */
  61