1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * ADXL345 3-Axis Digital Accelerometer I2C driver
4 *
5 * Copyright (c) 2017 Eva Rachel Retuya <eraretuya@gmail.com>
6 *
7 * 7-bit I2C slave address: 0x1D (ALT ADDRESS pin tied to VDDIO) or
8 * 0x53 (ALT ADDRESS pin grounded)
9 */
10
11#include <linux/i2c.h>
12#include <linux/module.h>
13#include <linux/regmap.h>
14
15#include "adxl345.h"
16
17static const struct regmap_config adxl345_i2c_regmap_config = {
18	.reg_bits = 8,
19	.val_bits = 8,
20};
21
22static int adxl345_i2c_probe(struct i2c_client *client,
23			     const struct i2c_device_id *id)
24{
25	struct regmap *regmap;
26
27	if (!id)
28		return -ENODEV;
29
30	regmap = devm_regmap_init_i2c(client, &adxl345_i2c_regmap_config);
31	if (IS_ERR(regmap)) {
32		dev_err(&client->dev, "Error initializing i2c regmap: %ld\n",
33			PTR_ERR(regmap));
34		return PTR_ERR(regmap);
35	}
36
37	return adxl345_core_probe(&client->dev, regmap, id->driver_data,
38				  id->name);
39}
40
41static int adxl345_i2c_remove(struct i2c_client *client)
42{
43	return adxl345_core_remove(&client->dev);
44}
45
46static const struct i2c_device_id adxl345_i2c_id[] = {
47	{ "adxl345", ADXL345 },
48	{ "adxl375", ADXL375 },
49	{ }
50};
51
52MODULE_DEVICE_TABLE(i2c, adxl345_i2c_id);
53
54static const struct of_device_id adxl345_of_match[] = {
55	{ .compatible = "adi,adxl345" },
56	{ .compatible = "adi,adxl375" },
57	{ },
58};
59
60MODULE_DEVICE_TABLE(of, adxl345_of_match);
61
62static struct i2c_driver adxl345_i2c_driver = {
63	.driver = {
64		.name	= "adxl345_i2c",
65		.of_match_table = adxl345_of_match,
66	},
67	.probe		= adxl345_i2c_probe,
68	.remove		= adxl345_i2c_remove,
69	.id_table	= adxl345_i2c_id,
70};
71
72module_i2c_driver(adxl345_i2c_driver);
73
74MODULE_AUTHOR("Eva Rachel Retuya <eraretuya@gmail.com>");
75MODULE_DESCRIPTION("ADXL345 3-Axis Digital Accelerometer I2C driver");
76MODULE_LICENSE("GPL v2");
77