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Diffstat (limited to 'drivers/iio/magnetometer/st_magn_i2c.c')
-rw-r--r--drivers/iio/magnetometer/st_magn_i2c.c81
1 files changed, 81 insertions, 0 deletions
diff --git a/drivers/iio/magnetometer/st_magn_i2c.c b/drivers/iio/magnetometer/st_magn_i2c.c
new file mode 100644
index 000000000000..710b256a5a0e
--- /dev/null
+++ b/drivers/iio/magnetometer/st_magn_i2c.c
@@ -0,0 +1,81 @@
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#include <linux/iio/trigger.h>
17
18#include <linux/iio/common/st_sensors.h>
19#include <linux/iio/common/st_sensors_i2c.h>
20#include "st_magn.h"
21
22static int st_magn_i2c_probe(struct i2c_client *client,
23 const struct i2c_device_id *id)
24{
25 struct iio_dev *indio_dev;
26 struct st_sensor_data *mdata;
27 int err;
28
29 indio_dev = iio_device_alloc(sizeof(*mdata));
30 if (indio_dev == NULL) {
31 err = -ENOMEM;
32 goto iio_device_alloc_error;
33 }
34
35 mdata = iio_priv(indio_dev);
36 mdata->dev = &client->dev;
37
38 st_sensors_i2c_configure(indio_dev, client, mdata);
39
40 err = st_magn_common_probe(indio_dev);
41 if (err < 0)
42 goto st_magn_common_probe_error;
43
44 return 0;
45
46st_magn_common_probe_error:
47 iio_device_free(indio_dev);
48iio_device_alloc_error:
49 return err;
50}
51
52static int st_magn_i2c_remove(struct i2c_client *client)
53{
54 struct iio_dev *indio_dev = i2c_get_clientdata(client);
55 st_magn_common_remove(indio_dev);
56
57 return 0;
58}
59
60static const struct i2c_device_id st_magn_id_table[] = {
61 { LSM303DLHC_MAGN_DEV_NAME },
62 { LSM303DLM_MAGN_DEV_NAME },
63 { LIS3MDL_MAGN_DEV_NAME },
64 {},
65};
66MODULE_DEVICE_TABLE(i2c, st_magn_id_table);
67
68static struct i2c_driver st_magn_driver = {
69 .driver = {
70 .owner = THIS_MODULE,
71 .name = "st-magn-i2c",
72 },
73 .probe = st_magn_i2c_probe,
74 .remove = st_magn_i2c_remove,
75 .id_table = st_magn_id_table,
76};
77module_i2c_driver(st_magn_driver);
78
79MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
80MODULE_DESCRIPTION("STMicroelectronics magnetometers i2c driver");
81MODULE_LICENSE("GPL v2");