linux/drivers/i2c/muxes/i2c-mux-gpio.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * I2C multiplexer using GPIO API
 *
 * Peter Korsgaard <[email protected]>
 */

#include <linux/bits.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/gpio/driver.h>
#include <linux/i2c.h>
#include <linux/i2c-mux.h>
#include <linux/module.h>
#include <linux/overflow.h>
#include <linux/platform_data/i2c-mux-gpio.h>
#include <linux/platform_device.h>
#include <linux/slab.h>

struct gpiomux { … };

static void i2c_mux_gpio_set(const struct gpiomux *mux, unsigned int val)
{ … }

static int i2c_mux_gpio_select(struct i2c_mux_core *muxc, u32 chan)
{ … }

static int i2c_mux_gpio_deselect(struct i2c_mux_core *muxc, u32 chan)
{ … }

static int i2c_mux_gpio_probe_fw(struct gpiomux *mux,
				 struct platform_device *pdev)
{ … }

static int i2c_mux_gpio_probe(struct platform_device *pdev)
{ … }

static void i2c_mux_gpio_remove(struct platform_device *pdev)
{ … }

static const struct of_device_id i2c_mux_gpio_of_match[] = …;
MODULE_DEVICE_TABLE(of, i2c_mux_gpio_of_match);

static struct platform_driver i2c_mux_gpio_driver = …;

module_platform_driver(…) …;

MODULE_DESCRIPTION(…) …;
MODULE_AUTHOR(…) …;
MODULE_LICENSE(…) …;
MODULE_ALIAS(…) …;