1/*
 2 * Copyright (C) Maxime Coquelin 2015
 3 * Author:  Maxime Coquelin <mcoquelin.stm32@gmail.com>
 4 * License terms:  GNU General Public License (GPL), version 2
 5 */
 6#ifndef __PINCTRL_STM32_H
 7#define __PINCTRL_STM32_H
 8
 9#include <linux/pinctrl/pinctrl.h>
10#include <linux/pinctrl/pinconf-generic.h>
11
12#define STM32_PIN_NO(x) ((x) << 8)
13#define STM32_GET_PIN_NO(x) ((x) >> 8)
14#define STM32_GET_PIN_FUNC(x) ((x) & 0xff)
15
16#define STM32_PIN_GPIO		0
17#define STM32_PIN_AF(x)		((x) + 1)
18#define STM32_PIN_ANALOG	(STM32_PIN_AF(15) + 1)
19
20struct stm32_desc_function {
21	const char *name;
22	const unsigned char num;
23};
24
25struct stm32_desc_pin {
26	struct pinctrl_pin_desc pin;
27	const struct stm32_desc_function *functions;
28};
29
30#define STM32_PIN(_pin, ...)					\
31	{							\
32		.pin = _pin,					\
33		.functions = (struct stm32_desc_function[]){	\
34			__VA_ARGS__, { } },			\
35	}
36
37#define STM32_FUNCTION(_num, _name)		\
38	{							\
39		.num = _num,					\
40		.name = _name,					\
41	}
42
43struct stm32_pinctrl_match_data {
44	const struct stm32_desc_pin *pins;
45	const unsigned int npins;
46};
47
48int stm32_pctl_probe(struct platform_device *pdev);
49
50#endif /* __PINCTRL_STM32_H */
51