1 /*
2  * STMicroelectronics magnetometers driver
3  *
4  * Copyright 2012-2013 STMicroelectronics Inc.
5  *
6  * Denis Ciocca <denis.ciocca@st.com>
7  *
8  * Licensed under the GPL-2.
9  */
10 
11 #include <linux/kernel.h>
12 #include <linux/module.h>
13 #include <linux/slab.h>
14 #include <linux/i2c.h>
15 #include <linux/iio/iio.h>
16 
17 #include <linux/iio/common/st_sensors.h>
18 #include <linux/iio/common/st_sensors_i2c.h>
19 #include "st_magn.h"
20 
21 static int st_magn_i2c_probe(struct i2c_client *client,
22 						const struct i2c_device_id *id)
23 {
24 	struct iio_dev *indio_dev;
25 	struct st_sensor_data *mdata;
26 	int err;
27 
28 	indio_dev = iio_device_alloc(sizeof(*mdata));
29 	if (indio_dev == NULL) {
30 		err = -ENOMEM;
31 		goto iio_device_alloc_error;
32 	}
33 
34 	mdata = iio_priv(indio_dev);
35 	mdata->dev = &client->dev;
36 
37 	st_sensors_i2c_configure(indio_dev, client, mdata);
38 
39 	err = st_magn_common_probe(indio_dev);
40 	if (err < 0)
41 		goto st_magn_common_probe_error;
42 
43 	return 0;
44 
45 st_magn_common_probe_error:
46 	iio_device_free(indio_dev);
47 iio_device_alloc_error:
48 	return err;
49 }
50 
51 static int st_magn_i2c_remove(struct i2c_client *client)
52 {
53 	struct iio_dev *indio_dev = i2c_get_clientdata(client);
54 	st_magn_common_remove(indio_dev);
55 
56 	return 0;
57 }
58 
59 static const struct i2c_device_id st_magn_id_table[] = {
60 	{ LSM303DLHC_MAGN_DEV_NAME },
61 	{ LSM303DLM_MAGN_DEV_NAME },
62 	{ LIS3MDL_MAGN_DEV_NAME },
63 	{},
64 };
65 MODULE_DEVICE_TABLE(i2c, st_magn_id_table);
66 
67 static struct i2c_driver st_magn_driver = {
68 	.driver = {
69 		.owner = THIS_MODULE,
70 		.name = "st-magn-i2c",
71 	},
72 	.probe = st_magn_i2c_probe,
73 	.remove = st_magn_i2c_remove,
74 	.id_table = st_magn_id_table,
75 };
76 module_i2c_driver(st_magn_driver);
77 
78 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
79 MODULE_DESCRIPTION("STMicroelectronics magnetometers i2c driver");
80 MODULE_LICENSE("GPL v2");
81