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/* SPDX-License-Identifier: GPL-2.0-only */
/* MCP23S08 SPI/I2C GPIO driver */
#include <linux/gpio/driver.h>
#include <linux/irq.h>
#include <linux/mutex.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/types.h>
/*
* MCP types supported by driver
*/
#define MCP_TYPE_S08 1
#define MCP_TYPE_S17 2
#define MCP_TYPE_008 3
#define MCP_TYPE_017 4
#define MCP_TYPE_S18 5
#define MCP_TYPE_018 6
struct device;
struct regmap;
struct pinctrl_dev;
struct mcp23s08_info {
const struct regmap_config *regmap;
const char *label;
unsigned int type;
u16 ngpio;
bool reg_shift;
};
struct mcp23s08 {
u8 addr;
bool irq_active_high;
bool reg_shift;
u16 irq_rise;
u16 irq_fall;
int irq;
bool irq_controller;
int cached_gpio;
/* lock protects regmap access with bypass/cache flags */
struct mutex lock;
struct gpio_chip chip;
struct regmap *regmap;
struct device *dev;
struct pinctrl_dev *pctldev;
struct pinctrl_desc pinctrl_desc;
struct gpio_desc *reset_gpio;
};
extern const struct regmap_config mcp23x08_regmap;
extern const struct regmap_config mcp23x17_regmap;
int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev,
unsigned int addr, unsigned int type, unsigned int base);
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