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 %d\n",
30 				(int)PTR_ERR(regmap));
31 		return PTR_ERR(regmap);
32 	}
33 
34 	if (id)
35 		name = id->name;
36 
37 	return bme680_core_probe(&client->dev, regmap, name);
38 }
39 
40 static const struct i2c_device_id bme680_i2c_id[] = {
41 	{"bme680", 0},
42 	{},
43 };
44 MODULE_DEVICE_TABLE(i2c, bme680_i2c_id);
45 
46 static const struct acpi_device_id bme680_acpi_match[] = {
47 	{"BME0680", 0},
48 	{},
49 };
50 MODULE_DEVICE_TABLE(acpi, bme680_acpi_match);
51 
52 static const struct of_device_id bme680_of_i2c_match[] = {
53 	{ .compatible = "bosch,bme680", },
54 	{},
55 };
56 MODULE_DEVICE_TABLE(of, bme680_of_i2c_match);
57 
58 static struct i2c_driver bme680_i2c_driver = {
59 	.driver = {
60 		.name			= "bme680_i2c",
61 		.acpi_match_table       = ACPI_PTR(bme680_acpi_match),
62 		.of_match_table		= bme680_of_i2c_match,
63 	},
64 	.probe = bme680_i2c_probe,
65 	.id_table = bme680_i2c_id,
66 };
67 module_i2c_driver(bme680_i2c_driver);
68 
69 MODULE_AUTHOR("Himanshu Jha <himanshujha199640@gmail.com>");
70 MODULE_DESCRIPTION("BME680 I2C driver");
71 MODULE_LICENSE("GPL v2");
72