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