| Sean Wang | e46df23 | 2018-05-21 01:01:48 +0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* |
| 3 | * Copyright (C) 2014-2018 MediaTek Inc. |
| 4 | * |
| 5 | * Author: Maoguang Meng <maoguang.meng@mediatek.com> |
| 6 | * Sean Wang <sean.wang@mediatek.com> |
| 7 | * |
| 8 | */ |
| 9 | #ifndef __MTK_EINT_H |
| 10 | #define __MTK_EINT_H |
| 11 | |
| 12 | #include <linux/irqdomain.h> |
| 13 | |
| 14 | struct mtk_eint_regs { |
| 15 | unsigned int stat; |
| 16 | unsigned int ack; |
| 17 | unsigned int mask; |
| 18 | unsigned int mask_set; |
| 19 | unsigned int mask_clr; |
| 20 | unsigned int sens; |
| 21 | unsigned int sens_set; |
| 22 | unsigned int sens_clr; |
| 23 | unsigned int soft; |
| 24 | unsigned int soft_set; |
| 25 | unsigned int soft_clr; |
| 26 | unsigned int pol; |
| 27 | unsigned int pol_set; |
| 28 | unsigned int pol_clr; |
| 29 | unsigned int dom_en; |
| 30 | unsigned int dbnc_ctrl; |
| 31 | unsigned int dbnc_set; |
| 32 | unsigned int dbnc_clr; |
| 33 | }; |
| 34 | |
| 35 | struct mtk_eint_hw { |
| Sean Wang | e46df23 | 2018-05-21 01:01:48 +0800 | [diff] [blame] | 36 | u8 port_mask; |
| 37 | u8 ports; |
| 38 | unsigned int ap_num; |
| 39 | unsigned int db_cnt; |
| 40 | }; |
| 41 | |
| 42 | struct mtk_eint; |
| 43 | |
| 44 | struct mtk_eint_xt { |
| 45 | int (*get_gpio_n)(void *data, unsigned long eint_n, |
| 46 | unsigned int *gpio_n, |
| 47 | struct gpio_chip **gpio_chip); |
| 48 | int (*get_gpio_state)(void *data, unsigned long eint_n); |
| 49 | int (*set_gpio_as_eint)(void *data, unsigned long eint_n); |
| 50 | }; |
| 51 | |
| 52 | struct mtk_eint { |
| 53 | struct device *dev; |
| 54 | void __iomem *base; |
| 55 | struct irq_domain *domain; |
| 56 | int irq; |
| 57 | |
| 58 | int *dual_edge; |
| 59 | u32 *wake_mask; |
| 60 | u32 *cur_mask; |
| 61 | |
| 62 | /* Used to fit into various EINT device */ |
| 63 | const struct mtk_eint_hw *hw; |
| 64 | const struct mtk_eint_regs *regs; |
| 65 | |
| 66 | /* Used to fit into various pinctrl device */ |
| 67 | void *pctl; |
| 68 | const struct mtk_eint_xt *gpio_xlate; |
| 69 | }; |
| 70 | |
| 71 | #if IS_ENABLED(CONFIG_EINT_MTK) |
| 72 | int mtk_eint_do_init(struct mtk_eint *eint); |
| 73 | int mtk_eint_do_suspend(struct mtk_eint *eint); |
| 74 | int mtk_eint_do_resume(struct mtk_eint *eint); |
| 75 | int mtk_eint_set_debounce(struct mtk_eint *eint, unsigned long eint_n, |
| 76 | unsigned int debounce); |
| 77 | int mtk_eint_find_irq(struct mtk_eint *eint, unsigned long eint_n); |
| 78 | |
| 79 | #else |
| 80 | static inline int mtk_eint_do_init(struct mtk_eint *eint) |
| 81 | { |
| 82 | return -EOPNOTSUPP; |
| 83 | } |
| 84 | |
| 85 | static inline int mtk_eint_do_suspend(struct mtk_eint *eint) |
| 86 | { |
| 87 | return -EOPNOTSUPP; |
| 88 | } |
| 89 | |
| 90 | static inline int mtk_eint_do_resume(struct mtk_eint *eint) |
| 91 | { |
| 92 | return -EOPNOTSUPP; |
| 93 | } |
| 94 | |
| Arnd Bergmann | ad335be | 2018-09-26 21:38:09 +0200 | [diff] [blame^] | 95 | static inline int mtk_eint_set_debounce(struct mtk_eint *eint, unsigned long eint_n, |
| Sean Wang | e46df23 | 2018-05-21 01:01:48 +0800 | [diff] [blame] | 96 | unsigned int debounce) |
| 97 | { |
| 98 | return -EOPNOTSUPP; |
| 99 | } |
| 100 | |
| Arnd Bergmann | ad335be | 2018-09-26 21:38:09 +0200 | [diff] [blame^] | 101 | static inline int mtk_eint_find_irq(struct mtk_eint *eint, unsigned long eint_n) |
| Sean Wang | e46df23 | 2018-05-21 01:01:48 +0800 | [diff] [blame] | 102 | { |
| 103 | return -EOPNOTSUPP; |
| 104 | } |
| 105 | #endif |
| 106 | #endif /* __MTK_EINT_H */ |