OpenCloudOS-Kernel/include/linux/pinctrl/devinfo.h

78 lines
1.7 KiB
C

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Per-device information from the pin control system.
* This is the stuff that get included into the device
* core.
*
* Copyright (C) 2012 ST-Ericsson SA
* Written on behalf of Linaro for ST-Ericsson
* This interface is used in the core to keep track of pins.
*
* Author: Linus Walleij <linus.walleij@linaro.org>
*/
#ifndef PINCTRL_DEVINFO_H
#define PINCTRL_DEVINFO_H
struct device;
#ifdef CONFIG_PINCTRL
#include <linux/device.h>
/* The device core acts as a consumer toward pinctrl */
#include <linux/pinctrl/consumer.h>
struct pinctrl;
/**
* struct dev_pin_info - pin state container for devices
* @p: pinctrl handle for the containing device
* @default_state: the default state for the handle, if found
* @init_state: the state at probe time, if found
* @sleep_state: the state at suspend time, if found
* @idle_state: the state at idle (runtime suspend) time, if found
*/
struct dev_pin_info {
struct pinctrl *p;
struct pinctrl_state *default_state;
struct pinctrl_state *init_state;
#ifdef CONFIG_PM
struct pinctrl_state *sleep_state;
struct pinctrl_state *idle_state;
#endif
};
extern int pinctrl_bind_pins(struct device *dev);
extern int pinctrl_init_done(struct device *dev);
static inline struct pinctrl *dev_pinctrl(struct device *dev)
{
if (!dev->pins)
return NULL;
return dev->pins->p;
}
#else
/* Stubs if we're not using pinctrl */
static inline int pinctrl_bind_pins(struct device *dev)
{
return 0;
}
static inline int pinctrl_init_done(struct device *dev)
{
return 0;
}
static inline struct pinctrl *dev_pinctrl(struct device *dev)
{
return NULL;
}
#endif /* CONFIG_PINCTRL */
#endif /* PINCTRL_DEVINFO_H */