linux/drivers/pinctrl/pinctrl-mcp23s08.h
Andy Shevchenko 0f04a81784 pinctrl: mcp23s08: Split to three parts: core, I²C, SPI
Split the driver to three parts: core, I²C, SPI.
No functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20200407173849.43628-9-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-16 14:21:23 +02:00

53 lines
1.1 KiB
C

/* 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 {
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 irq_chip irq_chip;
struct regmap *regmap;
struct device *dev;
struct pinctrl_dev *pctldev;
struct pinctrl_desc pinctrl_desc;
};
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);