1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * STMicroelectronics accelerometers 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_i2c.h>
17#include "st_accel.h"
18
19static const struct of_device_id st_accel_of_match[] = {
20 {
21 /* An older compatible */
22 .compatible = "st,lis3lv02d",
23 .data = LIS3LV02DL_ACCEL_DEV_NAME,
24 },
25 {
26 .compatible = "st,lis3lv02dl-accel",
27 .data = LIS3LV02DL_ACCEL_DEV_NAME,
28 },
29 {
30 .compatible = "st,lsm303dlh-accel",
31 .data = LSM303DLH_ACCEL_DEV_NAME,
32 },
33 {
34 .compatible = "st,lsm303dlhc-accel",
35 .data = LSM303DLHC_ACCEL_DEV_NAME,
36 },
37 {
38 .compatible = "st,lis3dh-accel",
39 .data = LIS3DH_ACCEL_DEV_NAME,
40 },
41 {
42 .compatible = "st,lsm330d-accel",
43 .data = LSM330D_ACCEL_DEV_NAME,
44 },
45 {
46 .compatible = "st,lsm330dl-accel",
47 .data = LSM330DL_ACCEL_DEV_NAME,
48 },
49 {
50 .compatible = "st,lsm330dlc-accel",
51 .data = LSM330DLC_ACCEL_DEV_NAME,
52 },
53 {
54 .compatible = "st,lis331dl-accel",
55 .data = LIS331DL_ACCEL_DEV_NAME,
56 },
57 {
58 .compatible = "st,lis331dlh-accel",
59 .data = LIS331DLH_ACCEL_DEV_NAME,
60 },
61 {
62 .compatible = "st,lsm303dl-accel",
63 .data = LSM303DL_ACCEL_DEV_NAME,
64 },
65 {
66 .compatible = "st,lsm303dlm-accel",
67 .data = LSM303DLM_ACCEL_DEV_NAME,
68 },
69 {
70 .compatible = "st,lsm330-accel",
71 .data = LSM330_ACCEL_DEV_NAME,
72 },
73 {
74 .compatible = "st,lsm303agr-accel",
75 .data = LSM303AGR_ACCEL_DEV_NAME,
76 },
77 {
78 .compatible = "st,lis2dh12-accel",
79 .data = LIS2DH12_ACCEL_DEV_NAME,
80 },
81 {
82 .compatible = "st,h3lis331dl-accel",
83 .data = H3LIS331DL_ACCEL_DEV_NAME,
84 },
85 {
86 .compatible = "st,lis3l02dq",
87 .data = LIS3L02DQ_ACCEL_DEV_NAME,
88 },
89 {
90 .compatible = "st,lng2dm-accel",
91 .data = LNG2DM_ACCEL_DEV_NAME,
92 },
93 {
94 .compatible = "st,lis2dw12",
95 .data = LIS2DW12_ACCEL_DEV_NAME,
96 },
97 {
98 .compatible = "st,lis3de",
99 .data = LIS3DE_ACCEL_DEV_NAME,
100 },
101 {
102 .compatible = "st,lis2de12",
103 .data = LIS2DE12_ACCEL_DEV_NAME,
104 },
105 {
106 .compatible = "st,lis2hh12",
107 .data = LIS2HH12_ACCEL_DEV_NAME,
108 },
109 {
110 .compatible = "st,lis302dl",
111 .data = LIS302DL_ACCEL_DEV_NAME,
112 },
113 {
114 .compatible = "st,lsm303c-accel",
115 .data = LSM303C_ACCEL_DEV_NAME,
116 },
117 {
118 .compatible = "silan,sc7a20",
119 .data = SC7A20_ACCEL_DEV_NAME,
120 },
121 {
122 .compatible = "st,iis328dq",
123 .data = IIS328DQ_ACCEL_DEV_NAME,
124 },
125 {},
126};
127MODULE_DEVICE_TABLE(of, st_accel_of_match);
128
129static const struct acpi_device_id st_accel_acpi_match[] = {
130 {"SMO8840", (kernel_ulong_t)LIS2DH12_ACCEL_DEV_NAME},
131 {"SMO8A90", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME},
132 { },
133};
134MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match);
135
136static const struct i2c_device_id st_accel_id_table[] = {
137 { LSM303DLH_ACCEL_DEV_NAME },
138 { LSM303DLHC_ACCEL_DEV_NAME },
139 { LIS3DH_ACCEL_DEV_NAME },
140 { LSM330D_ACCEL_DEV_NAME },
141 { LSM330DL_ACCEL_DEV_NAME },
142 { LSM330DLC_ACCEL_DEV_NAME },
143 { LIS331DLH_ACCEL_DEV_NAME },
144 { LSM303DL_ACCEL_DEV_NAME },
145 { LSM303DLM_ACCEL_DEV_NAME },
146 { LSM330_ACCEL_DEV_NAME },
147 { LSM303AGR_ACCEL_DEV_NAME },
148 { LIS2DH12_ACCEL_DEV_NAME },
149 { LIS3L02DQ_ACCEL_DEV_NAME },
150 { LNG2DM_ACCEL_DEV_NAME },
151 { H3LIS331DL_ACCEL_DEV_NAME },
152 { LIS331DL_ACCEL_DEV_NAME },
153 { LIS3LV02DL_ACCEL_DEV_NAME },
154 { LIS2DW12_ACCEL_DEV_NAME },
155 { LIS3DE_ACCEL_DEV_NAME },
156 { LIS2DE12_ACCEL_DEV_NAME },
157 { LIS2HH12_ACCEL_DEV_NAME },
158 { LIS302DL_ACCEL_DEV_NAME },
159 { LSM303C_ACCEL_DEV_NAME },
160 { SC7A20_ACCEL_DEV_NAME },
161 { IIS328DQ_ACCEL_DEV_NAME },
162 {},
163};
164MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
165
166static int st_accel_i2c_probe(struct i2c_client *client)
167{
168 const struct st_sensor_settings *settings;
169 struct st_sensor_data *adata;
170 struct iio_dev *indio_dev;
171 int ret;
172
173 st_sensors_dev_name_probe(dev: &client->dev, name: client->name, len: sizeof(client->name));
174
175 settings = st_accel_get_settings(name: client->name);
176 if (!settings) {
177 dev_err(&client->dev, "device name %s not recognized.\n",
178 client->name);
179 return -ENODEV;
180 }
181
182 indio_dev = devm_iio_device_alloc(parent: &client->dev, sizeof_priv: sizeof(*adata));
183 if (!indio_dev)
184 return -ENOMEM;
185
186 adata = iio_priv(indio_dev);
187 adata->sensor_settings = (struct st_sensor_settings *)settings;
188
189 ret = st_sensors_i2c_configure(indio_dev, client);
190 if (ret < 0)
191 return ret;
192
193 ret = st_sensors_power_enable(indio_dev);
194 if (ret)
195 return ret;
196
197 return st_accel_common_probe(indio_dev);
198}
199
200static struct i2c_driver st_accel_driver = {
201 .driver = {
202 .name = "st-accel-i2c",
203 .of_match_table = st_accel_of_match,
204 .acpi_match_table = st_accel_acpi_match,
205 },
206 .probe = st_accel_i2c_probe,
207 .id_table = st_accel_id_table,
208};
209module_i2c_driver(st_accel_driver);
210
211MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
212MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver");
213MODULE_LICENSE("GPL v2");
214MODULE_IMPORT_NS(IIO_ST_SENSORS);
215

source code of linux/drivers/iio/accel/st_accel_i2c.c