1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * 3-axis magnetometer driver supporting following I2C Bosch-Sensortec chips:
4 * - BMC150
5 * - BMC156
6 * - BMM150
7 *
8 * Copyright (c) 2016, Intel Corporation.
9 */
10 #include <linux/device.h>
11 #include <linux/mod_devicetable.h>
12 #include <linux/i2c.h>
13 #include <linux/module.h>
14 #include <linux/regmap.h>
15
16 #include "bmc150_magn.h"
17
bmc150_magn_i2c_probe(struct i2c_client * client)18 static int bmc150_magn_i2c_probe(struct i2c_client *client)
19 {
20 const struct i2c_device_id *id = i2c_client_get_device_id(client);
21 struct regmap *regmap;
22 const char *name = NULL;
23
24 regmap = devm_regmap_init_i2c(client, &bmc150_magn_regmap_config);
25 if (IS_ERR(regmap)) {
26 dev_err(&client->dev, "Failed to initialize i2c regmap\n");
27 return PTR_ERR(regmap);
28 }
29
30 if (id)
31 name = id->name;
32
33 return bmc150_magn_probe(&client->dev, regmap, client->irq, name);
34 }
35
bmc150_magn_i2c_remove(struct i2c_client * client)36 static void bmc150_magn_i2c_remove(struct i2c_client *client)
37 {
38 bmc150_magn_remove(&client->dev);
39 }
40
41 static const struct acpi_device_id bmc150_magn_acpi_match[] = {
42 {"BMC150B", 0},
43 {"BMC156B", 0},
44 {"BMM150B", 0},
45 {},
46 };
47 MODULE_DEVICE_TABLE(acpi, bmc150_magn_acpi_match);
48
49 static const struct i2c_device_id bmc150_magn_i2c_id[] = {
50 { "bmc150_magn" },
51 { "bmc156_magn" },
52 { "bmm150_magn" },
53 {}
54 };
55 MODULE_DEVICE_TABLE(i2c, bmc150_magn_i2c_id);
56
57 static const struct of_device_id bmc150_magn_of_match[] = {
58 { .compatible = "bosch,bmc150_magn" },
59 { .compatible = "bosch,bmc156_magn" },
60 { .compatible = "bosch,bmm150_magn" }, /* deprecated compatible */
61 { .compatible = "bosch,bmm150" },
62 { }
63 };
64 MODULE_DEVICE_TABLE(of, bmc150_magn_of_match);
65
66 static struct i2c_driver bmc150_magn_driver = {
67 .driver = {
68 .name = "bmc150_magn_i2c",
69 .of_match_table = bmc150_magn_of_match,
70 .acpi_match_table = bmc150_magn_acpi_match,
71 .pm = &bmc150_magn_pm_ops,
72 },
73 .probe = bmc150_magn_i2c_probe,
74 .remove = bmc150_magn_i2c_remove,
75 .id_table = bmc150_magn_i2c_id,
76 };
77 module_i2c_driver(bmc150_magn_driver);
78
79 MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com");
80 MODULE_LICENSE("GPL v2");
81 MODULE_DESCRIPTION("BMC150 I2C magnetometer driver");
82 MODULE_IMPORT_NS(IIO_BMC150_MAGN);
83