1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * ADXL345 3-Axis Digital Accelerometer I2C driver
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (c) 2017 Eva Rachel Retuya <eraretuya@gmail.com>
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * 7-bit I2C slave address: 0x1D (ALT ADDRESS pin tied to VDDIO) or
8*4882a593Smuzhiyun * 0x53 (ALT ADDRESS pin grounded)
9*4882a593Smuzhiyun */
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun #include <linux/i2c.h>
12*4882a593Smuzhiyun #include <linux/module.h>
13*4882a593Smuzhiyun #include <linux/regmap.h>
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun #include "adxl345.h"
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun static const struct regmap_config adxl345_i2c_regmap_config = {
18*4882a593Smuzhiyun .reg_bits = 8,
19*4882a593Smuzhiyun .val_bits = 8,
20*4882a593Smuzhiyun };
21*4882a593Smuzhiyun
adxl345_i2c_probe(struct i2c_client * client,const struct i2c_device_id * id)22*4882a593Smuzhiyun static int adxl345_i2c_probe(struct i2c_client *client,
23*4882a593Smuzhiyun const struct i2c_device_id *id)
24*4882a593Smuzhiyun {
25*4882a593Smuzhiyun struct regmap *regmap;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun if (!id)
28*4882a593Smuzhiyun return -ENODEV;
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun regmap = devm_regmap_init_i2c(client, &adxl345_i2c_regmap_config);
31*4882a593Smuzhiyun if (IS_ERR(regmap)) {
32*4882a593Smuzhiyun dev_err(&client->dev, "Error initializing i2c regmap: %ld\n",
33*4882a593Smuzhiyun PTR_ERR(regmap));
34*4882a593Smuzhiyun return PTR_ERR(regmap);
35*4882a593Smuzhiyun }
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun return adxl345_core_probe(&client->dev, regmap, id->driver_data,
38*4882a593Smuzhiyun id->name);
39*4882a593Smuzhiyun }
40*4882a593Smuzhiyun
adxl345_i2c_remove(struct i2c_client * client)41*4882a593Smuzhiyun static int adxl345_i2c_remove(struct i2c_client *client)
42*4882a593Smuzhiyun {
43*4882a593Smuzhiyun return adxl345_core_remove(&client->dev);
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun static const struct i2c_device_id adxl345_i2c_id[] = {
47*4882a593Smuzhiyun { "adxl345", ADXL345 },
48*4882a593Smuzhiyun { "adxl375", ADXL375 },
49*4882a593Smuzhiyun { }
50*4882a593Smuzhiyun };
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun MODULE_DEVICE_TABLE(i2c, adxl345_i2c_id);
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun static const struct of_device_id adxl345_of_match[] = {
55*4882a593Smuzhiyun { .compatible = "adi,adxl345" },
56*4882a593Smuzhiyun { .compatible = "adi,adxl375" },
57*4882a593Smuzhiyun { },
58*4882a593Smuzhiyun };
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun MODULE_DEVICE_TABLE(of, adxl345_of_match);
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun static struct i2c_driver adxl345_i2c_driver = {
63*4882a593Smuzhiyun .driver = {
64*4882a593Smuzhiyun .name = "adxl345_i2c",
65*4882a593Smuzhiyun .of_match_table = adxl345_of_match,
66*4882a593Smuzhiyun },
67*4882a593Smuzhiyun .probe = adxl345_i2c_probe,
68*4882a593Smuzhiyun .remove = adxl345_i2c_remove,
69*4882a593Smuzhiyun .id_table = adxl345_i2c_id,
70*4882a593Smuzhiyun };
71*4882a593Smuzhiyun
72*4882a593Smuzhiyun module_i2c_driver(adxl345_i2c_driver);
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun MODULE_AUTHOR("Eva Rachel Retuya <eraretuya@gmail.com>");
75*4882a593Smuzhiyun MODULE_DESCRIPTION("ADXL345 3-Axis Digital Accelerometer I2C driver");
76*4882a593Smuzhiyun MODULE_LICENSE("GPL v2");
77