1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * BME680 - I2C Driver
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2018 Himanshu Jha <himanshujha199640@gmail.com>
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * 7-Bit I2C slave address is:
8*4882a593Smuzhiyun * - 0x76 if SDO is pulled to GND
9*4882a593Smuzhiyun * - 0x77 if SDO is pulled to VDDIO
10*4882a593Smuzhiyun *
11*4882a593Smuzhiyun * Note: SDO pin cannot be left floating otherwise I2C address
12*4882a593Smuzhiyun * will be undefined.
13*4882a593Smuzhiyun */
14*4882a593Smuzhiyun #include <linux/acpi.h>
15*4882a593Smuzhiyun #include <linux/i2c.h>
16*4882a593Smuzhiyun #include <linux/module.h>
17*4882a593Smuzhiyun #include <linux/regmap.h>
18*4882a593Smuzhiyun
19*4882a593Smuzhiyun #include "bme680.h"
20*4882a593Smuzhiyun
bme680_i2c_probe(struct i2c_client * client,const struct i2c_device_id * id)21*4882a593Smuzhiyun static int bme680_i2c_probe(struct i2c_client *client,
22*4882a593Smuzhiyun const struct i2c_device_id *id)
23*4882a593Smuzhiyun {
24*4882a593Smuzhiyun struct regmap *regmap;
25*4882a593Smuzhiyun const char *name = NULL;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun regmap = devm_regmap_init_i2c(client, &bme680_regmap_config);
28*4882a593Smuzhiyun if (IS_ERR(regmap)) {
29*4882a593Smuzhiyun dev_err(&client->dev, "Failed to register i2c regmap %d\n",
30*4882a593Smuzhiyun (int)PTR_ERR(regmap));
31*4882a593Smuzhiyun return PTR_ERR(regmap);
32*4882a593Smuzhiyun }
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun if (id)
35*4882a593Smuzhiyun name = id->name;
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun return bme680_core_probe(&client->dev, regmap, name);
38*4882a593Smuzhiyun }
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun static const struct i2c_device_id bme680_i2c_id[] = {
41*4882a593Smuzhiyun {"bme680", 0},
42*4882a593Smuzhiyun {},
43*4882a593Smuzhiyun };
44*4882a593Smuzhiyun MODULE_DEVICE_TABLE(i2c, bme680_i2c_id);
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun static const struct acpi_device_id bme680_acpi_match[] = {
47*4882a593Smuzhiyun {"BME0680", 0},
48*4882a593Smuzhiyun {},
49*4882a593Smuzhiyun };
50*4882a593Smuzhiyun MODULE_DEVICE_TABLE(acpi, bme680_acpi_match);
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun static const struct of_device_id bme680_of_i2c_match[] = {
53*4882a593Smuzhiyun { .compatible = "bosch,bme680", },
54*4882a593Smuzhiyun {},
55*4882a593Smuzhiyun };
56*4882a593Smuzhiyun MODULE_DEVICE_TABLE(of, bme680_of_i2c_match);
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun static struct i2c_driver bme680_i2c_driver = {
59*4882a593Smuzhiyun .driver = {
60*4882a593Smuzhiyun .name = "bme680_i2c",
61*4882a593Smuzhiyun .acpi_match_table = ACPI_PTR(bme680_acpi_match),
62*4882a593Smuzhiyun .of_match_table = bme680_of_i2c_match,
63*4882a593Smuzhiyun },
64*4882a593Smuzhiyun .probe = bme680_i2c_probe,
65*4882a593Smuzhiyun .id_table = bme680_i2c_id,
66*4882a593Smuzhiyun };
67*4882a593Smuzhiyun module_i2c_driver(bme680_i2c_driver);
68*4882a593Smuzhiyun
69*4882a593Smuzhiyun MODULE_AUTHOR("Himanshu Jha <himanshujha199640@gmail.com>");
70*4882a593Smuzhiyun MODULE_DESCRIPTION("BME680 I2C driver");
71*4882a593Smuzhiyun MODULE_LICENSE("GPL v2");
72