Release 4.18 drivers/pinctrl/mediatek/mtk-eint.h

/* 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;
};

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;

	/* 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;
}

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

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

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

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int mtk_eint_find_irq(struct mtk_eint *eint, unsigned long eint_n)
{
	return -EOPNOTSUPP;
}
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#endif
#endif /* __MTK_EINT_H */
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Directory: drivers/pinctrl/mediatek

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