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