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  */
30 struct 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 
40 extern int pinctrl_bind_pins(struct device *dev);
41 extern int pinctrl_init_done(struct device *dev);
42 
43 #else
44 
45 struct device;
46 
47 /* Stubs if we're not using pinctrl */
48 
pinctrl_bind_pins(struct device * dev)49 static inline int pinctrl_bind_pins(struct device *dev)
50 {
51 	return 0;
52 }
53 
pinctrl_init_done(struct device * dev)54 static inline int pinctrl_init_done(struct device *dev)
55 {
56 	return 0;
57 }
58 
59 #endif /* CONFIG_PINCTRL */
60 #endif /* PINCTRL_DEVINFO_H */
61