119 lines
2.9 KiB
C
119 lines
2.9 KiB
C
/*
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* drivers/power/axp/axp-gpio.h
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* (C) Copyright 2010-2016
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* Pannan <pannan@allwinnertech.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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*/
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#ifndef AXP_GPIO_H_
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#define AXP_GPIO_H_
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#include <linux/kernel.h>
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#include <linux/sunxi-gpio.h>
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#define AXP_PINCTRL_GPIO(_num) PINCTRL_PIN(_num, "GPIO"#_num)
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/*
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* GPIO Registers.
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*/
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#define AXP_PIN_NAME_MAX_LEN (8)
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struct axp_desc_function {
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const char *name;
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u8 muxval;
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u8 irq_valid;
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};
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struct axp_desc_pin {
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struct pinctrl_pin_desc pin;
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struct axp_desc_function *functions;
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};
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struct axp_pinctrl_desc {
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const struct axp_desc_pin *pins;
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int npins;
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};
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struct axp_pinctrl_function {
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const char *name;
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const char **groups;
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unsigned ngroups;
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};
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struct axp_pinctrl_group {
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const char *name;
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unsigned long config;
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unsigned pin;
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};
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struct axp_gpio_ops {
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int (*gpio_get_data)(struct axp_dev *axp_dev, int gpio);
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int (*gpio_set_data)(struct axp_dev *axp_dev, int gpio, int value);
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int (*pmx_set)(struct axp_dev *axp_dev, int gpio, int mux);
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int (*pmx_get)(struct axp_dev *axp_dev, int gpio);
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};
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struct axp_pinctrl {
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struct device *dev;
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struct pinctrl_dev *pctl_dev;
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struct gpio_chip gpio_chip;
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struct axp_dev *axp_dev;
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struct axp_gpio_ops *ops;
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struct axp_pinctrl_desc *desc;
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struct axp_pinctrl_function *functions;
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unsigned nfunctions;
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struct axp_pinctrl_group *groups;
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unsigned ngroups;
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};
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#define AXP_PIN_DESC(_pin, ...) \
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{ \
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.pin = _pin, \
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.functions = (struct axp_desc_function[]){ \
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__VA_ARGS__, { } }, \
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}
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#define AXP_FUNCTION(_val, _name) \
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{ \
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.name = _name, \
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.muxval = _val, \
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}
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#define AXP_FUNCTION_IRQ(_valid) \
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{ \
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.name = "irq", \
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.irq_valid = _valid, \
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}
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struct axp_gpio_irq_ops {
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int (*irq_request)(int, u32 (*handler)(int, void *), void *);
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int (*irq_free)(int);
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int (*irq_ack)(int);
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int (*irq_enable)(int);
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int (*irq_disable)(int);
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int (*irq_set_type)(int, unsigned long);
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};
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struct axp_gpio_irqchip {
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int gpio_no;
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u32 (*handler)(int, void *);
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void *data;
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};
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struct axp_pinctrl *axp_pinctrl_register(struct device *dev,
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struct axp_dev *axp_dev,
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struct axp_pinctrl_desc *desc,
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struct axp_gpio_ops *ops);
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int axp_pinctrl_unregister(struct axp_pinctrl *pctl);
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void axp_gpio_irq_ops_set(int pmu_num, struct axp_gpio_irq_ops *ops);
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int axp_gpio_irq_valid(struct axp_pinctrl_desc *desc, int gpio_no);
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#endif
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