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 #ifdef CONFIG_OF
22 static const struct of_device_id st_gyro_of_match[] = {
23 {
24 .compatible = "st,l3g4200d-gyro",
25 .data = L3G4200D_GYRO_DEV_NAME,
26 },
27 {
28 .compatible = "st,lsm330d-gyro",
29 .data = LSM330D_GYRO_DEV_NAME,
30 },
31 {
32 .compatible = "st,lsm330dl-gyro",
33 .data = LSM330DL_GYRO_DEV_NAME,
34 },
35 {
36 .compatible = "st,lsm330dlc-gyro",
37 .data = LSM330DLC_GYRO_DEV_NAME,
38 },
39 {
40 .compatible = "st,l3gd20-gyro",
41 .data = L3GD20_GYRO_DEV_NAME,
42 },
43 {
44 .compatible = "st,l3g4is-gyro",
45 .data = L3G4IS_GYRO_DEV_NAME,
46 },
47 {
48 .compatible = "st,lsm330-gyro",
49 .data = LSM330_GYRO_DEV_NAME,
50 },
51 {},
52 };
53 MODULE_DEVICE_TABLE(of, st_gyro_of_match);
54 #else
55 #define st_gyro_of_match NULL
56 #endif
57
st_gyro_i2c_probe(struct i2c_client * client,const struct i2c_device_id * id)58 static int st_gyro_i2c_probe(struct i2c_client *client,
59 const struct i2c_device_id *id)
60 {
61 struct iio_dev *indio_dev;
62 struct st_sensor_data *gdata;
63 int err;
64
65 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*gdata));
66 if (!indio_dev)
67 return -ENOMEM;
68
69 gdata = iio_priv(indio_dev);
70 st_sensors_of_i2c_probe(client, st_gyro_of_match);
71
72 st_sensors_i2c_configure(indio_dev, client, gdata);
73
74 err = st_gyro_common_probe(indio_dev);
75 if (err < 0)
76 return err;
77
78 return 0;
79 }
80
st_gyro_i2c_remove(struct i2c_client * client)81 static int st_gyro_i2c_remove(struct i2c_client *client)
82 {
83 st_gyro_common_remove(i2c_get_clientdata(client));
84
85 return 0;
86 }
87
88 static const struct i2c_device_id st_gyro_id_table[] = {
89 { L3G4200D_GYRO_DEV_NAME },
90 { LSM330D_GYRO_DEV_NAME },
91 { LSM330DL_GYRO_DEV_NAME },
92 { LSM330DLC_GYRO_DEV_NAME },
93 { L3GD20_GYRO_DEV_NAME },
94 { L3G4IS_GYRO_DEV_NAME },
95 { LSM330_GYRO_DEV_NAME },
96 {},
97 };
98 MODULE_DEVICE_TABLE(i2c, st_gyro_id_table);
99
100 static struct i2c_driver st_gyro_driver = {
101 .driver = {
102 .name = "st-gyro-i2c",
103 .of_match_table = of_match_ptr(st_gyro_of_match),
104 },
105 .probe = st_gyro_i2c_probe,
106 .remove = st_gyro_i2c_remove,
107 .id_table = st_gyro_id_table,
108 };
109 module_i2c_driver(st_gyro_driver);
110
111 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
112 MODULE_DESCRIPTION("STMicroelectronics gyroscopes i2c driver");
113 MODULE_LICENSE("GPL v2");
114