| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright (C) 2014-2025 MediaTek Inc. |
| * |
| * Author: Maoguang Meng <maoguang.meng@mediatek.com> |
| * Sean Wang <sean.wang@mediatek.com> |
| * Hao Chang <ot_chhao.chang@mediatek.com> |
| * Qingliang Li <qingliang.li@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; |
| }; |
| |
| struct mtk_eint_pin { |
| u16 number; |
| u8 instance; |
| u8 index; |
| bool debounce; |
| bool dual_edge; |
| }; |
| |
| 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; |
| int nbase; |
| u16 *base_pin_num; |
| struct irq_domain *domain; |
| int irq; |
| |
| int *dual_edge; |
| u16 **pin_list; |
| 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; |
| struct mtk_eint_pin *pins; |
| 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, struct mtk_eint_pin *eint_pin); |
| 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, |
| struct mtk_eint_pin *eint_pin) |
| { |
| 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 */ |
