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Linux kernel mirror (for testing)
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linux
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 const struct i2c_device_id adxl345_i2c_id[] = {
42 { "adxl345", ADXL345 },
43 { "adxl375", ADXL375 },
44 { }
45};
46
47MODULE_DEVICE_TABLE(i2c, adxl345_i2c_id);
48
49static const struct of_device_id adxl345_of_match[] = {
50 { .compatible = "adi,adxl345" },
51 { .compatible = "adi,adxl375" },
52 { },
53};
54
55MODULE_DEVICE_TABLE(of, adxl345_of_match);
56
57static struct i2c_driver adxl345_i2c_driver = {
58 .driver = {
59 .name = "adxl345_i2c",
60 .of_match_table = adxl345_of_match,
61 },
62 .probe = adxl345_i2c_probe,
63 .id_table = adxl345_i2c_id,
64};
65
66module_i2c_driver(adxl345_i2c_driver);
67
68MODULE_AUTHOR("Eva Rachel Retuya <eraretuya@gmail.com>");
69MODULE_DESCRIPTION("ADXL345 3-Axis Digital Accelerometer I2C driver");
70MODULE_LICENSE("GPL v2");