root/drivers/mfd/tps65912-i2c.c
// SPDX-License-Identifier: GPL-2.0-only
/*
 * I2C access driver for TI TPS65912x PMICs
 *
 * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/
 *      Andrew F. Davis <afd@ti.com>
 *
 * Based on the TPS65218 driver and the previous TPS65912 driver by
 * Margarita Olaya Cabrera <magi@slimlogic.co.uk>
 */

#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>

#include <linux/mfd/tps65912.h>

static const struct of_device_id tps65912_i2c_of_match_table[] = {
        { .compatible = "ti,tps65912", },
        { /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, tps65912_i2c_of_match_table);

static int tps65912_i2c_probe(struct i2c_client *client)
{
        struct tps65912 *tps;

        tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
        if (!tps)
                return -ENOMEM;

        i2c_set_clientdata(client, tps);
        tps->dev = &client->dev;
        tps->irq = client->irq;

        tps->regmap = devm_regmap_init_i2c(client, &tps65912_regmap_config);
        if (IS_ERR(tps->regmap)) {
                dev_err(tps->dev, "Failed to initialize register map\n");
                return PTR_ERR(tps->regmap);
        }

        return tps65912_device_init(tps);
}

static const struct i2c_device_id tps65912_i2c_id_table[] = {
        { "tps65912" },
        { /* sentinel */ }
};
MODULE_DEVICE_TABLE(i2c, tps65912_i2c_id_table);

static struct i2c_driver tps65912_i2c_driver = {
        .driver         = {
                .name   = "tps65912",
                .of_match_table = tps65912_i2c_of_match_table,
        },
        .probe          = tps65912_i2c_probe,
        .id_table       = tps65912_i2c_id_table,
};
module_i2c_driver(tps65912_i2c_driver);

MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");
MODULE_DESCRIPTION("TPS65912x I2C Interface Driver");
MODULE_LICENSE("GPL v2");