1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (C) 2014-2018 MediaTek Inc.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Author: Maoguang Meng <maoguang.meng@mediatek.com>
6*4882a593Smuzhiyun * Sean Wang <sean.wang@mediatek.com>
7*4882a593Smuzhiyun *
8*4882a593Smuzhiyun */
9*4882a593Smuzhiyun #ifndef __MTK_EINT_H
10*4882a593Smuzhiyun #define __MTK_EINT_H
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include <linux/irqdomain.h>
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun struct mtk_eint_regs {
15*4882a593Smuzhiyun unsigned int stat;
16*4882a593Smuzhiyun unsigned int ack;
17*4882a593Smuzhiyun unsigned int mask;
18*4882a593Smuzhiyun unsigned int mask_set;
19*4882a593Smuzhiyun unsigned int mask_clr;
20*4882a593Smuzhiyun unsigned int sens;
21*4882a593Smuzhiyun unsigned int sens_set;
22*4882a593Smuzhiyun unsigned int sens_clr;
23*4882a593Smuzhiyun unsigned int soft;
24*4882a593Smuzhiyun unsigned int soft_set;
25*4882a593Smuzhiyun unsigned int soft_clr;
26*4882a593Smuzhiyun unsigned int pol;
27*4882a593Smuzhiyun unsigned int pol_set;
28*4882a593Smuzhiyun unsigned int pol_clr;
29*4882a593Smuzhiyun unsigned int dom_en;
30*4882a593Smuzhiyun unsigned int dbnc_ctrl;
31*4882a593Smuzhiyun unsigned int dbnc_set;
32*4882a593Smuzhiyun unsigned int dbnc_clr;
33*4882a593Smuzhiyun };
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun struct mtk_eint_hw {
36*4882a593Smuzhiyun u8 port_mask;
37*4882a593Smuzhiyun u8 ports;
38*4882a593Smuzhiyun unsigned int ap_num;
39*4882a593Smuzhiyun unsigned int db_cnt;
40*4882a593Smuzhiyun };
41*4882a593Smuzhiyun
42*4882a593Smuzhiyun struct mtk_eint;
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun struct mtk_eint_xt {
45*4882a593Smuzhiyun int (*get_gpio_n)(void *data, unsigned long eint_n,
46*4882a593Smuzhiyun unsigned int *gpio_n,
47*4882a593Smuzhiyun struct gpio_chip **gpio_chip);
48*4882a593Smuzhiyun int (*get_gpio_state)(void *data, unsigned long eint_n);
49*4882a593Smuzhiyun int (*set_gpio_as_eint)(void *data, unsigned long eint_n);
50*4882a593Smuzhiyun };
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun struct mtk_eint {
53*4882a593Smuzhiyun struct device *dev;
54*4882a593Smuzhiyun void __iomem *base;
55*4882a593Smuzhiyun struct irq_domain *domain;
56*4882a593Smuzhiyun int irq;
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun int *dual_edge;
59*4882a593Smuzhiyun u32 *wake_mask;
60*4882a593Smuzhiyun u32 *cur_mask;
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun /* Used to fit into various EINT device */
63*4882a593Smuzhiyun const struct mtk_eint_hw *hw;
64*4882a593Smuzhiyun const struct mtk_eint_regs *regs;
65*4882a593Smuzhiyun
66*4882a593Smuzhiyun /* Used to fit into various pinctrl device */
67*4882a593Smuzhiyun void *pctl;
68*4882a593Smuzhiyun const struct mtk_eint_xt *gpio_xlate;
69*4882a593Smuzhiyun };
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun #if IS_ENABLED(CONFIG_EINT_MTK)
72*4882a593Smuzhiyun int mtk_eint_do_init(struct mtk_eint *eint);
73*4882a593Smuzhiyun int mtk_eint_do_suspend(struct mtk_eint *eint);
74*4882a593Smuzhiyun int mtk_eint_do_resume(struct mtk_eint *eint);
75*4882a593Smuzhiyun int mtk_eint_set_debounce(struct mtk_eint *eint, unsigned long eint_n,
76*4882a593Smuzhiyun unsigned int debounce);
77*4882a593Smuzhiyun int mtk_eint_find_irq(struct mtk_eint *eint, unsigned long eint_n);
78*4882a593Smuzhiyun
79*4882a593Smuzhiyun #else
mtk_eint_do_init(struct mtk_eint * eint)80*4882a593Smuzhiyun static inline int mtk_eint_do_init(struct mtk_eint *eint)
81*4882a593Smuzhiyun {
82*4882a593Smuzhiyun return -EOPNOTSUPP;
83*4882a593Smuzhiyun }
84*4882a593Smuzhiyun
mtk_eint_do_suspend(struct mtk_eint * eint)85*4882a593Smuzhiyun static inline int mtk_eint_do_suspend(struct mtk_eint *eint)
86*4882a593Smuzhiyun {
87*4882a593Smuzhiyun return -EOPNOTSUPP;
88*4882a593Smuzhiyun }
89*4882a593Smuzhiyun
mtk_eint_do_resume(struct mtk_eint * eint)90*4882a593Smuzhiyun static inline int mtk_eint_do_resume(struct mtk_eint *eint)
91*4882a593Smuzhiyun {
92*4882a593Smuzhiyun return -EOPNOTSUPP;
93*4882a593Smuzhiyun }
94*4882a593Smuzhiyun
mtk_eint_set_debounce(struct mtk_eint * eint,unsigned long eint_n,unsigned int debounce)95*4882a593Smuzhiyun static inline int mtk_eint_set_debounce(struct mtk_eint *eint, unsigned long eint_n,
96*4882a593Smuzhiyun unsigned int debounce)
97*4882a593Smuzhiyun {
98*4882a593Smuzhiyun return -EOPNOTSUPP;
99*4882a593Smuzhiyun }
100*4882a593Smuzhiyun
mtk_eint_find_irq(struct mtk_eint * eint,unsigned long eint_n)101*4882a593Smuzhiyun static inline int mtk_eint_find_irq(struct mtk_eint *eint, unsigned long eint_n)
102*4882a593Smuzhiyun {
103*4882a593Smuzhiyun return -EOPNOTSUPP;
104*4882a593Smuzhiyun }
105*4882a593Smuzhiyun #endif
106*4882a593Smuzhiyun #endif /* __MTK_EINT_H */
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