summaryrefslogtreecommitdiffstats
path: root/drivers/pinctrl/mediatek/mtk-eint.h
blob: 6139b16cd225fe0c93aa7e11c28e2f608dc41b24 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2014-2018 MediaTek Inc.
 *
 * Author: Maoguang Meng <maoguang.meng@mediatek.com>
 *	   Sean Wang <sean.wang@mediatek.com>
 *
 */
#ifndef __MTK_EINT_H
#define __MTK_EINT_H

#include <linux/irqdomain.h>

struct mtk_eint_regs {
	unsigned int	stat;
	unsigned int	ack;
	unsigned int	mask;
	unsigned int	mask_set;
	unsigned int	mask_clr;
	unsigned int	sens;
	unsigned int	sens_set;
	unsigned int	sens_clr;
	unsigned int	soft;
	unsigned int	soft_set;
	unsigned int	soft_clr;
	unsigned int	pol;
	unsigned int	pol_set;
	unsigned int	pol_clr;
	unsigned int	dom_en;
	unsigned int	dbnc_ctrl;
	unsigned int	dbnc_set;
	unsigned int	dbnc_clr;
};

struct mtk_eint_hw {
	u8		port_mask;
	u8		ports;
	unsigned int	ap_num;
	unsigned int	db_cnt;
	const unsigned int *db_time;
};

extern const unsigned int debounce_time_mt2701[];
extern const unsigned int debounce_time_mt6765[];
extern const unsigned int debounce_time_mt6795[];

struct mtk_eint;

struct mtk_eint_xt {
	int (*get_gpio_n)(void *data, unsigned long eint_n,
			  unsigned int *gpio_n,
			  struct gpio_chip **gpio_chip);
	int (*get_gpio_state)(void *data, unsigned long eint_n);
	int (*set_gpio_as_eint)(void *data, unsigned long eint_n);
};

struct mtk_eint {
	struct device *dev;
	void __iomem *base;
	struct irq_domain *domain;
	int irq;

	int *dual_edge;
	u32 *wake_mask;
	u32 *cur_mask;

	/* Used to fit into various EINT device */
	const struct mtk_eint_hw *hw;
	const struct mtk_eint_regs *regs;
	u16 num_db_time;

	/* Used to fit into various pinctrl device */
	void *pctl;
	const struct mtk_eint_xt *gpio_xlate;
};

#if IS_ENABLED(CONFIG_EINT_MTK)
int mtk_eint_do_init(struct mtk_eint *eint);
int mtk_eint_do_suspend(struct mtk_eint *eint);
int mtk_eint_do_resume(struct mtk_eint *eint);
int mtk_eint_set_debounce(struct mtk_eint *eint, unsigned long eint_n,
			  unsigned int debounce);
int mtk_eint_find_irq(struct mtk_eint *eint, unsigned long eint_n);

#else
static inline int mtk_eint_do_init(struct mtk_eint *eint)
{
	return -EOPNOTSUPP;
}

static inline int mtk_eint_do_suspend(struct mtk_eint *eint)
{
	return -EOPNOTSUPP;
}

static inline int mtk_eint_do_resume(struct mtk_eint *eint)
{
	return -EOPNOTSUPP;
}

static inline int mtk_eint_set_debounce(struct mtk_eint *eint, unsigned long eint_n,
			  unsigned int debounce)
{
	return -EOPNOTSUPP;
}

static inline int mtk_eint_find_irq(struct mtk_eint *eint, unsigned long eint_n)
{
	return -EOPNOTSUPP;
}
#endif
#endif /* __MTK_EINT_H */