xref: /openbmc/linux/drivers/iio/gyro/st_gyro_i2c.c (revision b34e08d5)
1 /*
2  * STMicroelectronics gyroscopes 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_gyro.h"
20 
21 static int st_gyro_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 *gdata;
26 	int err;
27 
28 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*gdata));
29 	if (!indio_dev)
30 		return -ENOMEM;
31 
32 	gdata = iio_priv(indio_dev);
33 	gdata->dev = &client->dev;
34 
35 	st_sensors_i2c_configure(indio_dev, client, gdata);
36 
37 	err = st_gyro_common_probe(indio_dev,
38 				(struct st_sensors_platform_data *)&gyro_pdata);
39 	if (err < 0)
40 		return err;
41 
42 	return 0;
43 }
44 
45 static int st_gyro_i2c_remove(struct i2c_client *client)
46 {
47 	st_gyro_common_remove(i2c_get_clientdata(client));
48 
49 	return 0;
50 }
51 
52 static const struct i2c_device_id st_gyro_id_table[] = {
53 	{ L3G4200D_GYRO_DEV_NAME },
54 	{ LSM330D_GYRO_DEV_NAME },
55 	{ LSM330DL_GYRO_DEV_NAME },
56 	{ LSM330DLC_GYRO_DEV_NAME },
57 	{ L3GD20_GYRO_DEV_NAME },
58 	{ L3G4IS_GYRO_DEV_NAME },
59 	{ LSM330_GYRO_DEV_NAME },
60 	{},
61 };
62 MODULE_DEVICE_TABLE(i2c, st_gyro_id_table);
63 
64 static struct i2c_driver st_gyro_driver = {
65 	.driver = {
66 		.owner = THIS_MODULE,
67 		.name = "st-gyro-i2c",
68 	},
69 	.probe = st_gyro_i2c_probe,
70 	.remove = st_gyro_i2c_remove,
71 	.id_table = st_gyro_id_table,
72 };
73 module_i2c_driver(st_gyro_driver);
74 
75 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
76 MODULE_DESCRIPTION("STMicroelectronics gyroscopes i2c driver");
77 MODULE_LICENSE("GPL v2");
78