root/sound/soc/codecs/wm8731-i2c.c
// SPDX-License-Identifier: GPL-2.0-only
/*
 * wm8731-i2c.c  --  WM8731 ALSA SoC Audio driver I2C code
 *
 * Copyright 2005 Openedhand Ltd.
 * Copyright 2006-12 Wolfson Microelectronics, plc
 *
 * Author: Richard Purdie <richard@openedhand.com>
 *
 * Based on wm8753.c by Liam Girdwood
 */

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

#include "wm8731.h"


static const struct of_device_id wm8731_of_match[] = {
        { .compatible = "wlf,wm8731", },
        { }
};
MODULE_DEVICE_TABLE(of, wm8731_of_match);

static int wm8731_i2c_probe(struct i2c_client *i2c)
{
        struct wm8731_priv *wm8731;
        int ret;

        wm8731 = devm_kzalloc(&i2c->dev, sizeof(struct wm8731_priv),
                              GFP_KERNEL);
        if (wm8731 == NULL)
                return -ENOMEM;

        i2c_set_clientdata(i2c, wm8731);

        wm8731->regmap = devm_regmap_init_i2c(i2c, &wm8731_regmap);
        if (IS_ERR(wm8731->regmap)) {
                ret = PTR_ERR(wm8731->regmap);
                dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
                        ret);
                return ret;
        }

        return wm8731_init(&i2c->dev, wm8731);
}

static const struct i2c_device_id wm8731_i2c_id[] = {
        { "wm8731" },
        { }
};
MODULE_DEVICE_TABLE(i2c, wm8731_i2c_id);

static struct i2c_driver wm8731_i2c_driver = {
        .driver = {
                .name = "wm8731",
                .of_match_table = wm8731_of_match,
        },
        .probe = wm8731_i2c_probe,
        .id_table = wm8731_i2c_id,
};

module_i2c_driver(wm8731_i2c_driver);

MODULE_DESCRIPTION("ASoC WM8731 driver - I2C");
MODULE_AUTHOR("Richard Purdie");
MODULE_LICENSE("GPL");