1 /*
2  * 3-axis magnetometer driver supporting following I2C Bosch-Sensortec chips:
3  *  - BMC150
4  *  - BMC156
5  *
6  * Copyright (c) 2016, Intel Corporation.
7  *
8  * This program is free software; you can redistribute it and/or modify it
9  * under the terms and conditions of the GNU General Public License,
10  * version 2, as published by the Free Software Foundation.
11  *
12  * This program is distributed in the hope it will be useful, but WITHOUT
13  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
15  * more details.
16  */
17 #include <linux/device.h>
18 #include <linux/mod_devicetable.h>
19 #include <linux/i2c.h>
20 #include <linux/module.h>
21 #include <linux/acpi.h>
22 #include <linux/regmap.h>
23 
24 #include "bmc150_magn.h"
25 
26 static int bmc150_magn_i2c_probe(struct i2c_client *client,
27 				 const struct i2c_device_id *id)
28 {
29 	struct regmap *regmap;
30 	const char *name = NULL;
31 
32 	regmap = devm_regmap_init_i2c(client, &bmc150_magn_regmap_config);
33 	if (IS_ERR(regmap)) {
34 		dev_err(&client->dev, "Failed to initialize i2c regmap\n");
35 		return PTR_ERR(regmap);
36 	}
37 
38 	if (id)
39 		name = id->name;
40 
41 	return bmc150_magn_probe(&client->dev, regmap, client->irq, name);
42 }
43 
44 static int bmc150_magn_i2c_remove(struct i2c_client *client)
45 {
46 	return bmc150_magn_remove(&client->dev);
47 }
48 
49 static const struct acpi_device_id bmc150_magn_acpi_match[] = {
50 	{"BMC150B", 0},
51 	{"BMC156B", 0},
52 	{},
53 };
54 MODULE_DEVICE_TABLE(acpi, bmc150_magn_acpi_match);
55 
56 static const struct i2c_device_id bmc150_magn_i2c_id[] = {
57 	{"bmc150_magn",	0},
58 	{"bmc156_magn", 0},
59 	{}
60 };
61 MODULE_DEVICE_TABLE(i2c, bmc150_magn_i2c_id);
62 
63 static struct i2c_driver bmc150_magn_driver = {
64 	.driver = {
65 		.name	= "bmc150_magn_i2c",
66 		.acpi_match_table = ACPI_PTR(bmc150_magn_acpi_match),
67 		.pm	= &bmc150_magn_pm_ops,
68 	},
69 	.probe		= bmc150_magn_i2c_probe,
70 	.remove		= bmc150_magn_i2c_remove,
71 	.id_table	= bmc150_magn_i2c_id,
72 };
73 module_i2c_driver(bmc150_magn_driver);
74 
75 MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com");
76 MODULE_LICENSE("GPL v2");
77 MODULE_DESCRIPTION("BMC150 I2C magnetometer driver");
78