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/acpi.h>
14 #include <linux/i2c.h>
15 #include <linux/iio/iio.h>
16
17 #include <linux/iio/common/st_sensors_i2c.h>
18 #include "st_accel.h"
19
20 static const struct of_device_id st_accel_of_match[] = {
21 {
22 /* An older compatible */
23 .compatible = "st,lis3lv02d",
24 .data = LIS3LV02DL_ACCEL_DEV_NAME,
25 },
26 {
27 .compatible = "st,lis3lv02dl-accel",
28 .data = LIS3LV02DL_ACCEL_DEV_NAME,
29 },
30 {
31 .compatible = "st,lsm303dlh-accel",
32 .data = LSM303DLH_ACCEL_DEV_NAME,
33 },
34 {
35 .compatible = "st,lsm303dlhc-accel",
36 .data = LSM303DLHC_ACCEL_DEV_NAME,
37 },
38 {
39 .compatible = "st,lis3dh-accel",
40 .data = LIS3DH_ACCEL_DEV_NAME,
41 },
42 {
43 .compatible = "st,lsm330d-accel",
44 .data = LSM330D_ACCEL_DEV_NAME,
45 },
46 {
47 .compatible = "st,lsm330dl-accel",
48 .data = LSM330DL_ACCEL_DEV_NAME,
49 },
50 {
51 .compatible = "st,lsm330dlc-accel",
52 .data = LSM330DLC_ACCEL_DEV_NAME,
53 },
54 {
55 .compatible = "st,lis331dl-accel",
56 .data = LIS331DL_ACCEL_DEV_NAME,
57 },
58 {
59 .compatible = "st,lis331dlh-accel",
60 .data = LIS331DLH_ACCEL_DEV_NAME,
61 },
62 {
63 .compatible = "st,lsm303dl-accel",
64 .data = LSM303DL_ACCEL_DEV_NAME,
65 },
66 {
67 .compatible = "st,lsm303dlm-accel",
68 .data = LSM303DLM_ACCEL_DEV_NAME,
69 },
70 {
71 .compatible = "st,lsm330-accel",
72 .data = LSM330_ACCEL_DEV_NAME,
73 },
74 {
75 .compatible = "st,lsm303agr-accel",
76 .data = LSM303AGR_ACCEL_DEV_NAME,
77 },
78 {
79 .compatible = "st,lis2dh12-accel",
80 .data = LIS2DH12_ACCEL_DEV_NAME,
81 },
82 {
83 .compatible = "st,h3lis331dl-accel",
84 .data = H3LIS331DL_ACCEL_DEV_NAME,
85 },
86 {
87 .compatible = "st,lis3l02dq",
88 .data = LIS3L02DQ_ACCEL_DEV_NAME,
89 },
90 {
91 .compatible = "st,lng2dm-accel",
92 .data = LNG2DM_ACCEL_DEV_NAME,
93 },
94 {
95 .compatible = "st,lis2dw12",
96 .data = LIS2DW12_ACCEL_DEV_NAME,
97 },
98 {
99 .compatible = "st,lis3de",
100 .data = LIS3DE_ACCEL_DEV_NAME,
101 },
102 {
103 .compatible = "st,lis2de12",
104 .data = LIS2DE12_ACCEL_DEV_NAME,
105 },
106 {
107 .compatible = "st,lis2hh12",
108 .data = LIS2HH12_ACCEL_DEV_NAME,
109 },
110 {
111 .compatible = "st,lis302dl",
112 .data = LIS302DL_ACCEL_DEV_NAME,
113 },
114 {
115 .compatible = "silan,sc7a20",
116 .data = SC7A20_ACCEL_DEV_NAME,
117 },
118 {},
119 };
120 MODULE_DEVICE_TABLE(of, st_accel_of_match);
121
122 #ifdef CONFIG_ACPI
123 static const struct acpi_device_id st_accel_acpi_match[] = {
124 {"SMO8840", (kernel_ulong_t)LIS2DH12_ACCEL_DEV_NAME},
125 {"SMO8A90", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME},
126 { },
127 };
128 MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match);
129 #endif
130
131 static const struct i2c_device_id st_accel_id_table[] = {
132 { LSM303DLH_ACCEL_DEV_NAME },
133 { LSM303DLHC_ACCEL_DEV_NAME },
134 { LIS3DH_ACCEL_DEV_NAME },
135 { LSM330D_ACCEL_DEV_NAME },
136 { LSM330DL_ACCEL_DEV_NAME },
137 { LSM330DLC_ACCEL_DEV_NAME },
138 { LIS331DLH_ACCEL_DEV_NAME },
139 { LSM303DL_ACCEL_DEV_NAME },
140 { LSM303DLM_ACCEL_DEV_NAME },
141 { LSM330_ACCEL_DEV_NAME },
142 { LSM303AGR_ACCEL_DEV_NAME },
143 { LIS2DH12_ACCEL_DEV_NAME },
144 { LIS3L02DQ_ACCEL_DEV_NAME },
145 { LNG2DM_ACCEL_DEV_NAME },
146 { H3LIS331DL_ACCEL_DEV_NAME },
147 { LIS331DL_ACCEL_DEV_NAME },
148 { LIS3LV02DL_ACCEL_DEV_NAME },
149 { LIS2DW12_ACCEL_DEV_NAME },
150 { LIS3DE_ACCEL_DEV_NAME },
151 { LIS2DE12_ACCEL_DEV_NAME },
152 { LIS2HH12_ACCEL_DEV_NAME },
153 { LIS302DL_ACCEL_DEV_NAME },
154 { SC7A20_ACCEL_DEV_NAME },
155 {},
156 };
157 MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
158
st_accel_i2c_probe(struct i2c_client * client)159 static int st_accel_i2c_probe(struct i2c_client *client)
160 {
161 const struct st_sensor_settings *settings;
162 struct st_sensor_data *adata;
163 struct iio_dev *indio_dev;
164 int ret;
165
166 st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name));
167
168 settings = st_accel_get_settings(client->name);
169 if (!settings) {
170 dev_err(&client->dev, "device name %s not recognized.\n",
171 client->name);
172 return -ENODEV;
173 }
174
175 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata));
176 if (!indio_dev)
177 return -ENOMEM;
178
179 adata = iio_priv(indio_dev);
180 adata->sensor_settings = (struct st_sensor_settings *)settings;
181
182 ret = st_sensors_i2c_configure(indio_dev, client);
183 if (ret < 0)
184 return ret;
185
186 ret = st_sensors_power_enable(indio_dev);
187 if (ret)
188 return ret;
189
190 return st_accel_common_probe(indio_dev);
191 }
192
193 static struct i2c_driver st_accel_driver = {
194 .driver = {
195 .name = "st-accel-i2c",
196 .of_match_table = st_accel_of_match,
197 .acpi_match_table = ACPI_PTR(st_accel_acpi_match),
198 },
199 .probe_new = st_accel_i2c_probe,
200 .id_table = st_accel_id_table,
201 };
202 module_i2c_driver(st_accel_driver);
203
204 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
205 MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver");
206 MODULE_LICENSE("GPL v2");
207 MODULE_IMPORT_NS(IIO_ST_SENSORS);
208
