1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * ADXL355 3-Axis Digital Accelerometer I2C driver
4 *
5 * Copyright (c) 2021 Puranjay Mohan <puranjay12@gmail.com>
6 */
7
8#include <linux/i2c.h>
9#include <linux/module.h>
10#include <linux/mod_devicetable.h>
11#include <linux/regmap.h>
12
13#include "adxl355.h"
14
15static const struct regmap_config adxl355_i2c_regmap_config = {
16 .reg_bits = 8,
17 .val_bits = 8,
18 .max_register = 0x2F,
19 .rd_table = &adxl355_readable_regs_tbl,
20 .wr_table = &adxl355_writeable_regs_tbl,
21};
22
23static int adxl355_i2c_probe(struct i2c_client *client)
24{
25 struct regmap *regmap;
26 const struct adxl355_chip_info *chip_data;
27
28 chip_data = i2c_get_match_data(client);
29 if (!chip_data)
30 return -ENODEV;
31
32 regmap = devm_regmap_init_i2c(client, &adxl355_i2c_regmap_config);
33 if (IS_ERR(ptr: regmap)) {
34 dev_err(&client->dev, "Error initializing i2c regmap: %ld\n",
35 PTR_ERR(regmap));
36
37 return PTR_ERR(ptr: regmap);
38 }
39
40 return adxl355_core_probe(dev: &client->dev, regmap, chip_info: chip_data);
41}
42
43static const struct i2c_device_id adxl355_i2c_id[] = {
44 { "adxl355", (kernel_ulong_t)&adxl35x_chip_info[ADXL355] },
45 { "adxl359", (kernel_ulong_t)&adxl35x_chip_info[ADXL359] },
46 { }
47};
48MODULE_DEVICE_TABLE(i2c, adxl355_i2c_id);
49
50static const struct of_device_id adxl355_of_match[] = {
51 { .compatible = "adi,adxl355", .data = &adxl35x_chip_info[ADXL355] },
52 { .compatible = "adi,adxl359", .data = &adxl35x_chip_info[ADXL359] },
53 { }
54};
55MODULE_DEVICE_TABLE(of, adxl355_of_match);
56
57static struct i2c_driver adxl355_i2c_driver = {
58 .driver = {
59 .name = "adxl355_i2c",
60 .of_match_table = adxl355_of_match,
61 },
62 .probe = adxl355_i2c_probe,
63 .id_table = adxl355_i2c_id,
64};
65module_i2c_driver(adxl355_i2c_driver);
66
67MODULE_AUTHOR("Puranjay Mohan <puranjay12@gmail.com>");
68MODULE_DESCRIPTION("ADXL355 3-Axis Digital Accelerometer I2C driver");
69MODULE_LICENSE("GPL v2");
70MODULE_IMPORT_NS(IIO_ADXL355);
71

source code of linux/drivers/iio/accel/adxl355_i2c.c