1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * BMI160 - Bosch IMU, I2C bits
4 *
5 * Copyright (c) 2016, Intel Corporation.
6 *
7 * 7-bit I2C slave address is:
8 * - 0x68 if SDO is pulled to GND
9 * - 0x69 if SDO is pulled to VDDIO
10 */
11 #include <linux/i2c.h>
12 #include <linux/mod_devicetable.h>
13 #include <linux/module.h>
14 #include <linux/regmap.h>
15
16 #include "bmi160.h"
17
bmi160_i2c_probe(struct i2c_client * client)18 static int bmi160_i2c_probe(struct i2c_client *client)
19 {
20 const struct i2c_device_id *id = i2c_client_get_device_id(client);
21 struct regmap *regmap;
22 const char *name;
23
24 regmap = devm_regmap_init_i2c(client, &bmi160_regmap_config);
25 if (IS_ERR(regmap)) {
26 dev_err(&client->dev, "Failed to register i2c regmap: %pe\n",
27 regmap);
28 return PTR_ERR(regmap);
29 }
30
31 if (id)
32 name = id->name;
33 else
34 name = dev_name(&client->dev);
35
36 return bmi160_core_probe(&client->dev, regmap, name, false);
37 }
38
39 static const struct i2c_device_id bmi160_i2c_id[] = {
40 { "bmi120" },
41 { "bmi160" },
42 {}
43 };
44 MODULE_DEVICE_TABLE(i2c, bmi160_i2c_id);
45
46 static const struct acpi_device_id bmi160_acpi_match[] = {
47 /*
48 * FIRMWARE BUG WORKAROUND
49 * Some manufacturers like GPD, Lenovo or Aya used the incorrect
50 * ID "10EC5280" for bmi160 in their DSDT. A fixed firmware is not
51 * available as of Feb 2024 after trying to work with OEMs, and
52 * this is not expected to change anymore since at least some of
53 * the affected devices are from 2021/2022.
54 */
55 {"10EC5280", 0},
56 {"BMI0120", 0},
57 {"BMI0160", 0},
58 { },
59 };
60 MODULE_DEVICE_TABLE(acpi, bmi160_acpi_match);
61
62 static const struct of_device_id bmi160_of_match[] = {
63 { .compatible = "bosch,bmi120" },
64 { .compatible = "bosch,bmi160" },
65 { },
66 };
67 MODULE_DEVICE_TABLE(of, bmi160_of_match);
68
69 static struct i2c_driver bmi160_i2c_driver = {
70 .driver = {
71 .name = "bmi160_i2c",
72 .acpi_match_table = bmi160_acpi_match,
73 .of_match_table = bmi160_of_match,
74 },
75 .probe = bmi160_i2c_probe,
76 .id_table = bmi160_i2c_id,
77 };
78 module_i2c_driver(bmi160_i2c_driver);
79
80 MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>");
81 MODULE_DESCRIPTION("BMI160 I2C driver");
82 MODULE_LICENSE("GPL v2");
83 MODULE_IMPORT_NS(IIO_BMI160);
84