linux-zen-desktop/sound/soc/codecs/cs35l45-i2c.c

// SPDX-License-Identifier: GPL-2.0
//
// cs35l45-i2c.c -- CS35L45 I2C driver
//
// Copyright 2019-2022 Cirrus Logic, Inc.
//
// Author: James Schulman <james.schulman@cirrus.com>

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

#include "cs35l45.h"

static int cs35l45_i2c_probe(struct i2c_client *client)
{
	struct cs35l45_private *cs35l45;
	struct device *dev = &client->dev;
	int ret;

	cs35l45 = devm_kzalloc(dev, sizeof(struct cs35l45_private), GFP_KERNEL);
	if (!cs35l45)
		return -ENOMEM;

	i2c_set_clientdata(client, cs35l45);
	cs35l45->regmap = devm_regmap_init_i2c(client, &cs35l45_i2c_regmap);
	if (IS_ERR(cs35l45->regmap)) {
		ret = PTR_ERR(cs35l45->regmap);
		dev_err(dev, "Failed to allocate register map: %d\n", ret);
		return ret;
	}

	cs35l45->dev = dev;
	cs35l45->irq = client->irq;
	cs35l45->bus_type = CONTROL_BUS_I2C;
	cs35l45->i2c_addr = client->addr;

	return cs35l45_probe(cs35l45);
}

static void cs35l45_i2c_remove(struct i2c_client *client)
{
	struct cs35l45_private *cs35l45 = i2c_get_clientdata(client);

	cs35l45_remove(cs35l45);
}

static const struct of_device_id cs35l45_of_match[] = {
	{ .compatible = "cirrus,cs35l45" },
	{},
};
MODULE_DEVICE_TABLE(of, cs35l45_of_match);

static const struct i2c_device_id cs35l45_id_i2c[] = {
	{ "cs35l45", 0 },
	{}
};
MODULE_DEVICE_TABLE(i2c, cs35l45_id_i2c);

static struct i2c_driver cs35l45_i2c_driver = {
	.driver = {
		.name		= "cs35l45",
		.of_match_table = cs35l45_of_match,
		.pm		= &cs35l45_pm_ops,
	},
	.id_table	= cs35l45_id_i2c,
	.probe		= cs35l45_i2c_probe,
	.remove		= cs35l45_i2c_remove,
};
module_i2c_driver(cs35l45_i2c_driver);

MODULE_DESCRIPTION("I2C CS35L45 driver");
MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>");
MODULE_LICENSE("GPL");
MODULE_IMPORT_NS(SND_SOC_CS35L45);