xref: /linux/drivers/iio/imu/fxos8700_i2c.c (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0)
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * FXOS8700 - NXP IMU, I2C bits
4  *
5  * 7-bit I2C slave address determined by SA1 and SA0 logic level
6  * inputs represented in the following table:
7  *      SA1  |  SA0  |  Slave Address
8  *      0    |  0    |  0x1E
9  *      0    |  1    |  0x1D
10  *      1    |  0    |  0x1C
11  *      1    |  1    |  0x1F
12  */
13 #include <linux/i2c.h>
14 #include <linux/module.h>
15 #include <linux/mod_devicetable.h>
16 #include <linux/regmap.h>
17 
18 #include "fxos8700.h"
19 
20 static int fxos8700_i2c_probe(struct i2c_client *client)
21 {
22 	const struct i2c_device_id *id = i2c_client_get_device_id(client);
23 	struct regmap *regmap;
24 	const char *name = NULL;
25 
26 	regmap = devm_regmap_init_i2c(client, &fxos8700_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 fxos8700_core_probe(&client->dev, regmap, name, false);
36 }
37 
38 static const struct i2c_device_id fxos8700_i2c_id[] = {
39 	{ "fxos8700" },
40 	{ }
41 };
42 MODULE_DEVICE_TABLE(i2c, fxos8700_i2c_id);
43 
44 static const struct acpi_device_id fxos8700_acpi_match[] = {
45 	{"FXOS8700", 0},
46 	{ }
47 };
48 MODULE_DEVICE_TABLE(acpi, fxos8700_acpi_match);
49 
50 static const struct of_device_id fxos8700_of_match[] = {
51 	{ .compatible = "nxp,fxos8700" },
52 	{ }
53 };
54 MODULE_DEVICE_TABLE(of, fxos8700_of_match);
55 
56 static struct i2c_driver fxos8700_i2c_driver = {
57 	.driver = {
58 		.name                   = "fxos8700_i2c",
59 		.acpi_match_table       = fxos8700_acpi_match,
60 		.of_match_table         = fxos8700_of_match,
61 	},
62 	.probe          = fxos8700_i2c_probe,
63 	.id_table       = fxos8700_i2c_id,
64 };
65 module_i2c_driver(fxos8700_i2c_driver);
66 
67 MODULE_AUTHOR("Robert Jones <rjones@gateworks.com>");
68 MODULE_DESCRIPTION("FXOS8700 I2C driver");
69 MODULE_LICENSE("GPL v2");
70