GNU Linux-libre 4.19.314-gnu1
[releases.git] / drivers / iio / gyro / st_gyro_i2c.c
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,l3gd20h-gyro",
45                 .data = L3GD20H_GYRO_DEV_NAME,
46         },
47         {
48                 .compatible = "st,l3g4is-gyro",
49                 .data = L3G4IS_GYRO_DEV_NAME,
50         },
51         {
52                 .compatible = "st,lsm330-gyro",
53                 .data = LSM330_GYRO_DEV_NAME,
54         },
55         {
56                 .compatible = "st,lsm9ds0-gyro",
57                 .data = LSM9DS0_GYRO_DEV_NAME,
58         },
59         {},
60 };
61 MODULE_DEVICE_TABLE(of, st_gyro_of_match);
62 #else
63 #define st_gyro_of_match NULL
64 #endif
65
66 static int st_gyro_i2c_probe(struct i2c_client *client,
67                                                 const struct i2c_device_id *id)
68 {
69         struct iio_dev *indio_dev;
70         struct st_sensor_data *gdata;
71         int err;
72
73         indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*gdata));
74         if (!indio_dev)
75                 return -ENOMEM;
76
77         gdata = iio_priv(indio_dev);
78         st_sensors_of_name_probe(&client->dev, st_gyro_of_match,
79                                  client->name, sizeof(client->name));
80
81         st_sensors_i2c_configure(indio_dev, client, gdata);
82
83         err = st_gyro_common_probe(indio_dev);
84         if (err < 0)
85                 return err;
86
87         return 0;
88 }
89
90 static int st_gyro_i2c_remove(struct i2c_client *client)
91 {
92         st_gyro_common_remove(i2c_get_clientdata(client));
93
94         return 0;
95 }
96
97 static const struct i2c_device_id st_gyro_id_table[] = {
98         { L3G4200D_GYRO_DEV_NAME },
99         { LSM330D_GYRO_DEV_NAME },
100         { LSM330DL_GYRO_DEV_NAME },
101         { LSM330DLC_GYRO_DEV_NAME },
102         { L3GD20_GYRO_DEV_NAME },
103         { L3GD20H_GYRO_DEV_NAME },
104         { L3G4IS_GYRO_DEV_NAME },
105         { LSM330_GYRO_DEV_NAME },
106         { LSM9DS0_GYRO_DEV_NAME },
107         {},
108 };
109 MODULE_DEVICE_TABLE(i2c, st_gyro_id_table);
110
111 static struct i2c_driver st_gyro_driver = {
112         .driver = {
113                 .name = "st-gyro-i2c",
114                 .of_match_table = of_match_ptr(st_gyro_of_match),
115         },
116         .probe = st_gyro_i2c_probe,
117         .remove = st_gyro_i2c_remove,
118         .id_table = st_gyro_id_table,
119 };
120 module_i2c_driver(st_gyro_driver);
121
122 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
123 MODULE_DESCRIPTION("STMicroelectronics gyroscopes i2c driver");
124 MODULE_LICENSE("GPL v2");