// SPDX-License-Identifier: GPL-2.0-only
/*
 * STMicroelectronics uvis25 i2c driver
 *
 * Copyright 2017 STMicroelectronics Inc.
 *
 * Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/regmap.h>

#include "st_uvis25.h"

#define UVIS25_I2C_AUTO_INCREMENT       BIT(7)

static const struct regmap_config st_uvis25_i2c_regmap_config = {
        .reg_bits = 8,
        .val_bits = 8,
        .write_flag_mask = UVIS25_I2C_AUTO_INCREMENT,
        .read_flag_mask = UVIS25_I2C_AUTO_INCREMENT,
};

static int st_uvis25_i2c_probe(struct i2c_client *client)
{
        struct regmap *regmap;

        regmap = devm_regmap_init_i2c(client, &st_uvis25_i2c_regmap_config);
        if (IS_ERR(regmap)) {
                dev_err(&client->dev, "Failed to register i2c regmap %ld\n",
                        PTR_ERR(regmap));
                return PTR_ERR(regmap);
        }

        return st_uvis25_probe(&client->dev, client->irq, regmap);
}

static const struct of_device_id st_uvis25_i2c_of_match[] = {
        { .compatible = "st,uvis25", },
        { }
};
MODULE_DEVICE_TABLE(of, st_uvis25_i2c_of_match);

static const struct i2c_device_id st_uvis25_i2c_id_table[] = {
        { ST_UVIS25_DEV_NAME },
        { }
};
MODULE_DEVICE_TABLE(i2c, st_uvis25_i2c_id_table);

static struct i2c_driver st_uvis25_driver = {
        .driver = {
                .name = "st_uvis25_i2c",
                .pm = pm_sleep_ptr(&st_uvis25_pm_ops),
                .of_match_table = st_uvis25_i2c_of_match,
        },
        .probe = st_uvis25_i2c_probe,
        .id_table = st_uvis25_i2c_id_table,
};
module_i2c_driver(st_uvis25_driver);

MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>");
MODULE_DESCRIPTION("STMicroelectronics uvis25 i2c driver");
MODULE_LICENSE("GPL v2");
MODULE_IMPORT_NS("IIO_UVIS25");