linux/pinctrl/devinfo.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  * Per-device information from the pin control system.
0004  * This is the stuff that get included into the device
0005  * core.
0006  *
0007  * Copyright (C) 2012 ST-Ericsson SA
0008  * Written on behalf of Linaro for ST-Ericsson
0009  * This interface is used in the core to keep track of pins.
0010  *
0011  * Author: Linus Walleij <linus.walleij@linaro.org>
0012  */
0013
0014 #ifndef PINCTRL_DEVINFO_H
0015 #define PINCTRL_DEVINFO_H
0016
0017 #ifdef CONFIG_PINCTRL
0018
0019 /* The device core acts as a consumer toward pinctrl */
0020 #include <linux/pinctrl/consumer.h>
0021
0022 /**
0023  * struct dev_pin_info - pin state container for devices
0024  * @p: pinctrl handle for the containing device
0025  * @default_state: the default state for the handle, if found
0026  * @init_state: the state at probe time, if found
0027  * @sleep_state: the state at suspend time, if found
0028  * @idle_state: the state at idle (runtime suspend) time, if found
0029  */
0030 struct dev_pin_info {
0031     struct pinctrl *p;
0032     struct pinctrl_state *default_state;
0033     struct pinctrl_state *init_state;
0034 #ifdef CONFIG_PM
0035     struct pinctrl_state *sleep_state;
0036     struct pinctrl_state *idle_state;
0037 #endif
0038 };
0039
0040 extern int pinctrl_bind_pins(struct device *dev);
0041 extern int pinctrl_init_done(struct device *dev);
0042
0043 #else
0044
0045 struct device;
0046
0047 /* Stubs if we're not using pinctrl */
0048
0049 static inline int pinctrl_bind_pins(struct device *dev)
0050 {
0051     return 0;
0052 }
0053
0054 static inline int pinctrl_init_done(struct device *dev)
0055 {
0056     return 0;
0057 }
0058
0059 #endif /* CONFIG_PINCTRL */
0060 #endif /* PINCTRL_DEVINFO_H */