1// SPDX-License-Identifier: GPL-2.0
2//
3// cs35l45-i2c.c -- CS35L45 I2C driver
4//
5// Copyright 2019-2022 Cirrus Logic, Inc.
6//
7// Author: James Schulman <james.schulman@cirrus.com>
8
9#include <linux/device.h>
10#include <linux/module.h>
11#include <linux/i2c.h>
12#include <linux/regmap.h>
13
14#include "cs35l45.h"
15
16static int cs35l45_i2c_probe(struct i2c_client *client)
17{
18	struct cs35l45_private *cs35l45;
19	struct device *dev = &client->dev;
20	int ret;
21
22	cs35l45 = devm_kzalloc(dev, sizeof(struct cs35l45_private), GFP_KERNEL);
23	if (!cs35l45)
24		return -ENOMEM;
25
26	i2c_set_clientdata(client, cs35l45);
27	cs35l45->regmap = devm_regmap_init_i2c(client, &cs35l45_i2c_regmap);
28	if (IS_ERR(cs35l45->regmap)) {
29		ret = PTR_ERR(cs35l45->regmap);
30		dev_err(dev, "Failed to allocate register map: %d\n", ret);
31		return ret;
32	}
33
34	cs35l45->dev = dev;
35	cs35l45->irq = client->irq;
36	cs35l45->bus_type = CONTROL_BUS_I2C;
37	cs35l45->i2c_addr = client->addr;
38
39	return cs35l45_probe(cs35l45);
40}
41
42static void cs35l45_i2c_remove(struct i2c_client *client)
43{
44	struct cs35l45_private *cs35l45 = i2c_get_clientdata(client);
45
46	cs35l45_remove(cs35l45);
47}
48
49static const struct of_device_id cs35l45_of_match[] = {
50	{ .compatible = "cirrus,cs35l45" },
51	{},
52};
53MODULE_DEVICE_TABLE(of, cs35l45_of_match);
54
55static const struct i2c_device_id cs35l45_id_i2c[] = {
56	{ "cs35l45", 0 },
57	{}
58};
59MODULE_DEVICE_TABLE(i2c, cs35l45_id_i2c);
60
61static struct i2c_driver cs35l45_i2c_driver = {
62	.driver = {
63		.name		= "cs35l45",
64		.of_match_table = cs35l45_of_match,
65		.pm		= pm_ptr(&cs35l45_pm_ops),
66	},
67	.id_table	= cs35l45_id_i2c,
68	.probe		= cs35l45_i2c_probe,
69	.remove		= cs35l45_i2c_remove,
70};
71module_i2c_driver(cs35l45_i2c_driver);
72
73MODULE_DESCRIPTION("I2C CS35L45 driver");
74MODULE_AUTHOR("James Schulman, Cirrus Logic Inc, <james.schulman@cirrus.com>");
75MODULE_LICENSE("GPL");
76MODULE_IMPORT_NS(SND_SOC_CS35L45);
77