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 | |
15 | static 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 | |
23 | static 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 | |
43 | static 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 | }; |
48 | MODULE_DEVICE_TABLE(i2c, adxl355_i2c_id); |
49 | |
50 | static 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 | }; |
55 | MODULE_DEVICE_TABLE(of, adxl355_of_match); |
56 | |
57 | static 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 | }; |
65 | module_i2c_driver(adxl355_i2c_driver); |
66 | |
67 | MODULE_AUTHOR("Puranjay Mohan <puranjay12@gmail.com>" ); |
68 | MODULE_DESCRIPTION("ADXL355 3-Axis Digital Accelerometer I2C driver" ); |
69 | MODULE_LICENSE("GPL v2" ); |
70 | MODULE_IMPORT_NS(IIO_ADXL355); |
71 | |