1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * STMicroelectronics gyroscopes driver |
4 | * |
5 | * Copyright 2012-2013 STMicroelectronics Inc. |
6 | * |
7 | * Denis Ciocca <denis.ciocca@st.com> |
8 | */ |
9 | |
10 | #include <linux/kernel.h> |
11 | #include <linux/module.h> |
12 | #include <linux/mod_devicetable.h> |
13 | #include <linux/i2c.h> |
14 | #include <linux/iio/iio.h> |
15 | |
16 | #include <linux/iio/common/st_sensors.h> |
17 | #include <linux/iio/common/st_sensors_i2c.h> |
18 | #include "st_gyro.h" |
19 | |
20 | static const struct of_device_id st_gyro_of_match[] = { |
21 | { |
22 | .compatible = "st,l3g4200d-gyro" , |
23 | .data = L3G4200D_GYRO_DEV_NAME, |
24 | }, |
25 | { |
26 | .compatible = "st,lsm330d-gyro" , |
27 | .data = LSM330D_GYRO_DEV_NAME, |
28 | }, |
29 | { |
30 | .compatible = "st,lsm330dl-gyro" , |
31 | .data = LSM330DL_GYRO_DEV_NAME, |
32 | }, |
33 | { |
34 | .compatible = "st,lsm330dlc-gyro" , |
35 | .data = LSM330DLC_GYRO_DEV_NAME, |
36 | }, |
37 | { |
38 | .compatible = "st,l3gd20-gyro" , |
39 | .data = L3GD20_GYRO_DEV_NAME, |
40 | }, |
41 | { |
42 | .compatible = "st,l3gd20h-gyro" , |
43 | .data = L3GD20H_GYRO_DEV_NAME, |
44 | }, |
45 | { |
46 | .compatible = "st,l3g4is-gyro" , |
47 | .data = L3G4IS_GYRO_DEV_NAME, |
48 | }, |
49 | { |
50 | .compatible = "st,lsm330-gyro" , |
51 | .data = LSM330_GYRO_DEV_NAME, |
52 | }, |
53 | { |
54 | .compatible = "st,lsm9ds0-gyro" , |
55 | .data = LSM9DS0_GYRO_DEV_NAME, |
56 | }, |
57 | {}, |
58 | }; |
59 | MODULE_DEVICE_TABLE(of, st_gyro_of_match); |
60 | |
61 | static int st_gyro_i2c_probe(struct i2c_client *client) |
62 | { |
63 | const struct st_sensor_settings *settings; |
64 | struct st_sensor_data *gdata; |
65 | struct iio_dev *indio_dev; |
66 | int err; |
67 | |
68 | st_sensors_dev_name_probe(dev: &client->dev, name: client->name, len: sizeof(client->name)); |
69 | |
70 | settings = st_gyro_get_settings(name: client->name); |
71 | if (!settings) { |
72 | dev_err(&client->dev, "device name %s not recognized.\n" , |
73 | client->name); |
74 | return -ENODEV; |
75 | } |
76 | |
77 | indio_dev = devm_iio_device_alloc(parent: &client->dev, sizeof_priv: sizeof(*gdata)); |
78 | if (!indio_dev) |
79 | return -ENOMEM; |
80 | |
81 | gdata = iio_priv(indio_dev); |
82 | gdata->sensor_settings = (struct st_sensor_settings *)settings; |
83 | |
84 | err = st_sensors_i2c_configure(indio_dev, client); |
85 | if (err < 0) |
86 | return err; |
87 | |
88 | err = st_sensors_power_enable(indio_dev); |
89 | if (err) |
90 | return err; |
91 | |
92 | return st_gyro_common_probe(indio_dev); |
93 | } |
94 | |
95 | static const struct i2c_device_id st_gyro_id_table[] = { |
96 | { L3G4200D_GYRO_DEV_NAME }, |
97 | { LSM330D_GYRO_DEV_NAME }, |
98 | { LSM330DL_GYRO_DEV_NAME }, |
99 | { LSM330DLC_GYRO_DEV_NAME }, |
100 | { L3GD20_GYRO_DEV_NAME }, |
101 | { L3GD20H_GYRO_DEV_NAME }, |
102 | { L3G4IS_GYRO_DEV_NAME }, |
103 | { LSM330_GYRO_DEV_NAME }, |
104 | { LSM9DS0_GYRO_DEV_NAME }, |
105 | {}, |
106 | }; |
107 | MODULE_DEVICE_TABLE(i2c, st_gyro_id_table); |
108 | |
109 | static struct i2c_driver st_gyro_driver = { |
110 | .driver = { |
111 | .name = "st-gyro-i2c" , |
112 | .of_match_table = st_gyro_of_match, |
113 | }, |
114 | .probe = st_gyro_i2c_probe, |
115 | .id_table = st_gyro_id_table, |
116 | }; |
117 | module_i2c_driver(st_gyro_driver); |
118 | |
119 | MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>" ); |
120 | MODULE_DESCRIPTION("STMicroelectronics gyroscopes i2c driver" ); |
121 | MODULE_LICENSE("GPL v2" ); |
122 | MODULE_IMPORT_NS(IIO_ST_SENSORS); |
123 | |