pinctrl-pxa2xx.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Marvell PXA2xx family pin control
 4 *
 5 * Copyright (C) 2015 Robert Jarzmik
 6 */
 7
 8#ifndef __PINCTRL_PXA_H
 9#define __PINCTRL_PXA_H
10
11#define PXA_FUNCTION(_dir, _af, _name)				\
12	{							\
13		.name = _name,					\
14		.muxval = (_dir | (_af << 1)),			\
15	}
16
17#define PXA_PIN(_pin, funcs...)					\
18	{							\
19		.pin = _pin,					\
20		.functions = (struct pxa_desc_function[]){	\
21			funcs, { } },				\
22	}
23
24#define PXA_GPIO_PIN(_pin, funcs...)				\
25	{							\
26		.pin = _pin,					\
27		.functions = (struct pxa_desc_function[]){	\
28			PXA_FUNCTION(0, 0, "gpio_in"),		\
29			PXA_FUNCTION(1, 0, "gpio_out"),		\
30			funcs, { } },				\
31	}
32
33#define PXA_GPIO_ONLY_PIN(_pin)					\
34	{							\
35		.pin = _pin,					\
36		.functions = (struct pxa_desc_function[]){	\
37			PXA_FUNCTION(0, 0, "gpio_in"),		\
38			PXA_FUNCTION(1, 0, "gpio_out"),		\
39			{ } },					\
40	}
41
42#define PXA_PINCTRL_PIN(pin)		\
43	PINCTRL_PIN(pin, "P" #pin)
44
45struct pxa_desc_function {
46	const char	*name;
47	u8		muxval;
48};
49
50struct pxa_desc_pin {
51	struct pinctrl_pin_desc		pin;
52	struct pxa_desc_function	*functions;
53};
54
55struct pxa_pinctrl {
56	spinlock_t			lock;
57	void __iomem			**base_gafr;
58	void __iomem			**base_gpdr;
59	void __iomem			**base_pgsr;
60	struct device			*dev;
61	struct pinctrl_desc		desc;
62	struct pinctrl_dev		*pctl_dev;
63	unsigned			npins;
64	const struct pxa_desc_pin	*ppins;
65	unsigned			ngroups;
66	struct pingroup			*groups;
67	unsigned			nfuncs;
68	struct pinfunction		*functions;
69	char				*name;
70};
71
72int pxa2xx_pinctrl_init(struct platform_device *pdev,
73			const struct pxa_desc_pin *ppins, int npins,
74			void __iomem *base_gafr[], void __iomem *base_gpdr[],
75			void __iomem *base_gpsr[]);
76
77#endif /* __PINCTRL_PXA_H */