1 /*
2  * 3-axis magnetometer driver supporting following I2C Bosch-Sensortec chips:
3  *  - BMC150
4  *  - BMC156
5  *  - BMM150
6  *
7  * Copyright (c) 2016, Intel Corporation.
8  *
9  * This program is free software; you can redistribute it and/or modify it
10  * under the terms and conditions of the GNU General Public License,
11  * version 2, as published by the Free Software Foundation.
12  *
13  * This program is distributed in the hope it will be useful, but WITHOUT
14  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
16  * more details.
17  */
18 #include <linux/device.h>
19 #include <linux/mod_devicetable.h>
20 #include <linux/i2c.h>
21 #include <linux/module.h>
22 #include <linux/acpi.h>
23 #include <linux/regmap.h>
24 
25 #include "bmc150_magn.h"
26 
27 static int bmc150_magn_i2c_probe(struct i2c_client *client,
28 				 const struct i2c_device_id *id)
29 {
30 	struct regmap *regmap;
31 	const char *name = NULL;
32 
33 	regmap = devm_regmap_init_i2c(client, &bmc150_magn_regmap_config);
34 	if (IS_ERR(regmap)) {
35 		dev_err(&client->dev, "Failed to initialize i2c regmap\n");
36 		return PTR_ERR(regmap);
37 	}
38 
39 	if (id)
40 		name = id->name;
41 
42 	return bmc150_magn_probe(&client->dev, regmap, client->irq, name);
43 }
44 
45 static int bmc150_magn_i2c_remove(struct i2c_client *client)
46 {
47 	return bmc150_magn_remove(&client->dev);
48 }
49 
50 static const struct acpi_device_id bmc150_magn_acpi_match[] = {
51 	{"BMC150B", 0},
52 	{"BMC156B", 0},
53 	{"BMM150B", 0},
54 	{},
55 };
56 MODULE_DEVICE_TABLE(acpi, bmc150_magn_acpi_match);
57 
58 static const struct i2c_device_id bmc150_magn_i2c_id[] = {
59 	{"bmc150_magn",	0},
60 	{"bmc156_magn", 0},
61 	{"bmm150_magn", 0},
62 	{}
63 };
64 MODULE_DEVICE_TABLE(i2c, bmc150_magn_i2c_id);
65 
66 static struct i2c_driver bmc150_magn_driver = {
67 	.driver = {
68 		.name	= "bmc150_magn_i2c",
69 		.acpi_match_table = ACPI_PTR(bmc150_magn_acpi_match),
70 		.pm	= &bmc150_magn_pm_ops,
71 	},
72 	.probe		= bmc150_magn_i2c_probe,
73 	.remove		= bmc150_magn_i2c_remove,
74 	.id_table	= bmc150_magn_i2c_id,
75 };
76 module_i2c_driver(bmc150_magn_driver);
77 
78 MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com");
79 MODULE_LICENSE("GPL v2");
80 MODULE_DESCRIPTION("BMC150 I2C magnetometer driver");
81