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
bmc150_magn_i2c_probe(struct i2c_client * client,const struct i2c_device_id * id)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
bmc150_magn_i2c_remove(struct i2c_client * client)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 const struct of_device_id bmc150_magn_of_match[] = {
67 { .compatible = "bosch,bmc150_magn" },
68 { .compatible = "bosch,bmc156_magn" },
69 { .compatible = "bosch,bmm150_magn" },
70 { }
71 };
72 MODULE_DEVICE_TABLE(of, bmc150_magn_of_match);
73
74 static struct i2c_driver bmc150_magn_driver = {
75 .driver = {
76 .name = "bmc150_magn_i2c",
77 .of_match_table = bmc150_magn_of_match,
78 .acpi_match_table = ACPI_PTR(bmc150_magn_acpi_match),
79 .pm = &bmc150_magn_pm_ops,
80 },
81 .probe = bmc150_magn_i2c_probe,
82 .remove = bmc150_magn_i2c_remove,
83 .id_table = bmc150_magn_i2c_id,
84 };
85 module_i2c_driver(bmc150_magn_driver);
86
87 MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com");
88 MODULE_LICENSE("GPL v2");
89 MODULE_DESCRIPTION("BMC150 I2C magnetometer driver");
90
