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/i2c.h>
15 #include <linux/module.h>
16 #include <linux/regmap.h>
17 
18 #include "bme680.h"
19 
20 static int bme680_i2c_probe(struct i2c_client *client,
21 			    const struct i2c_device_id *id)
22 {
23 	struct regmap *regmap;
24 	const char *name = NULL;
25 
26 	regmap = devm_regmap_init_i2c(client, &bme680_regmap_config);
27 	if (IS_ERR(regmap)) {
28 		dev_err(&client->dev, "Failed to register i2c regmap %ld\n", PTR_ERR(regmap));
29 		return PTR_ERR(regmap);
30 	}
31 
32 	if (id)
33 		name = id->name;
34 
35 	return bme680_core_probe(&client->dev, regmap, name);
36 }
37 
38 static const struct i2c_device_id bme680_i2c_id[] = {
39 	{"bme680", 0},
40 	{},
41 };
42 MODULE_DEVICE_TABLE(i2c, bme680_i2c_id);
43 
44 static const struct of_device_id bme680_of_i2c_match[] = {
45 	{ .compatible = "bosch,bme680", },
46 	{},
47 };
48 MODULE_DEVICE_TABLE(of, bme680_of_i2c_match);
49 
50 static struct i2c_driver bme680_i2c_driver = {
51 	.driver = {
52 		.name			= "bme680_i2c",
53 		.of_match_table		= bme680_of_i2c_match,
54 	},
55 	.probe = bme680_i2c_probe,
56 	.id_table = bme680_i2c_id,
57 };
58 module_i2c_driver(bme680_i2c_driver);
59 
60 MODULE_AUTHOR("Himanshu Jha <himanshujha199640@gmail.com>");
61 MODULE_DESCRIPTION("BME680 I2C driver");
62 MODULE_LICENSE("GPL v2");
63