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/slab.h>
13 #include <linux/acpi.h>
14 #include <linux/i2c.h>
15 #include <linux/iio/iio.h>
16 #include <linux/property.h>
17
18 #include <linux/iio/common/st_sensors_i2c.h>
19 #include "st_accel.h"
20
21 static const struct of_device_id st_accel_of_match[] = {
22 {
23 /* An older compatible */
24 .compatible = "st,lis3lv02d",
25 .data = LIS3LV02DL_ACCEL_DEV_NAME,
26 },
27 {
28 .compatible = "st,lis3lv02dl-accel",
29 .data = LIS3LV02DL_ACCEL_DEV_NAME,
30 },
31 {
32 .compatible = "st,lsm303dlh-accel",
33 .data = LSM303DLH_ACCEL_DEV_NAME,
34 },
35 {
36 .compatible = "st,lsm303dlhc-accel",
37 .data = LSM303DLHC_ACCEL_DEV_NAME,
38 },
39 {
40 .compatible = "st,lis3dh-accel",
41 .data = LIS3DH_ACCEL_DEV_NAME,
42 },
43 {
44 .compatible = "st,lsm330d-accel",
45 .data = LSM330D_ACCEL_DEV_NAME,
46 },
47 {
48 .compatible = "st,lsm330dl-accel",
49 .data = LSM330DL_ACCEL_DEV_NAME,
50 },
51 {
52 .compatible = "st,lsm330dlc-accel",
53 .data = LSM330DLC_ACCEL_DEV_NAME,
54 },
55 {
56 .compatible = "st,lis331dl-accel",
57 .data = LIS331DL_ACCEL_DEV_NAME,
58 },
59 {
60 .compatible = "st,lis331dlh-accel",
61 .data = LIS331DLH_ACCEL_DEV_NAME,
62 },
63 {
64 .compatible = "st,lsm303dl-accel",
65 .data = LSM303DL_ACCEL_DEV_NAME,
66 },
67 {
68 .compatible = "st,lsm303dlm-accel",
69 .data = LSM303DLM_ACCEL_DEV_NAME,
70 },
71 {
72 .compatible = "st,lsm330-accel",
73 .data = LSM330_ACCEL_DEV_NAME,
74 },
75 {
76 .compatible = "st,lsm303agr-accel",
77 .data = LSM303AGR_ACCEL_DEV_NAME,
78 },
79 {
80 .compatible = "st,lis2dh12-accel",
81 .data = LIS2DH12_ACCEL_DEV_NAME,
82 },
83 {
84 .compatible = "st,h3lis331dl-accel",
85 .data = H3LIS331DL_ACCEL_DEV_NAME,
86 },
87 {
88 .compatible = "st,lis3l02dq",
89 .data = LIS3L02DQ_ACCEL_DEV_NAME,
90 },
91 {
92 .compatible = "st,lng2dm-accel",
93 .data = LNG2DM_ACCEL_DEV_NAME,
94 },
95 {
96 .compatible = "st,lis2dw12",
97 .data = LIS2DW12_ACCEL_DEV_NAME,
98 },
99 {
100 .compatible = "st,lis3de",
101 .data = LIS3DE_ACCEL_DEV_NAME,
102 },
103 {
104 .compatible = "st,lis2de12",
105 .data = LIS2DE12_ACCEL_DEV_NAME,
106 },
107 {
108 .compatible = "st,lis2hh12",
109 .data = LIS2HH12_ACCEL_DEV_NAME,
110 },
111 {},
112 };
113 MODULE_DEVICE_TABLE(of, st_accel_of_match);
114
115 #ifdef CONFIG_ACPI
116 static const struct acpi_device_id st_accel_acpi_match[] = {
117 {"SMO8840", (kernel_ulong_t)LIS2DH12_ACCEL_DEV_NAME},
118 {"SMO8A90", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME},
119 { },
120 };
121 MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match);
122 #endif
123
124 static const struct i2c_device_id st_accel_id_table[] = {
125 { LSM303DLH_ACCEL_DEV_NAME },
126 { LSM303DLHC_ACCEL_DEV_NAME },
127 { LIS3DH_ACCEL_DEV_NAME },
128 { LSM330D_ACCEL_DEV_NAME },
129 { LSM330DL_ACCEL_DEV_NAME },
130 { LSM330DLC_ACCEL_DEV_NAME },
131 { LIS331DLH_ACCEL_DEV_NAME },
132 { LSM303DL_ACCEL_DEV_NAME },
133 { LSM303DLM_ACCEL_DEV_NAME },
134 { LSM330_ACCEL_DEV_NAME },
135 { LSM303AGR_ACCEL_DEV_NAME },
136 { LIS2DH12_ACCEL_DEV_NAME },
137 { LIS3L02DQ_ACCEL_DEV_NAME },
138 { LNG2DM_ACCEL_DEV_NAME },
139 { H3LIS331DL_ACCEL_DEV_NAME },
140 { LIS331DL_ACCEL_DEV_NAME },
141 { LIS3LV02DL_ACCEL_DEV_NAME },
142 { LIS2DW12_ACCEL_DEV_NAME },
143 { LIS3DE_ACCEL_DEV_NAME },
144 { LIS2DE12_ACCEL_DEV_NAME },
145 { LIS2HH12_ACCEL_DEV_NAME },
146 {},
147 };
148 MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
149
st_accel_i2c_probe(struct i2c_client * client)150 static int st_accel_i2c_probe(struct i2c_client *client)
151 {
152 const struct st_sensor_settings *settings;
153 struct st_sensor_data *adata;
154 struct iio_dev *indio_dev;
155 int ret;
156
157 st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name));
158
159 settings = st_accel_get_settings(client->name);
160 if (!settings) {
161 dev_err(&client->dev, "device name %s not recognized.\n",
162 client->name);
163 return -ENODEV;
164 }
165
166 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata));
167 if (!indio_dev)
168 return -ENOMEM;
169
170 adata = iio_priv(indio_dev);
171 adata->sensor_settings = (struct st_sensor_settings *)settings;
172
173 ret = st_sensors_i2c_configure(indio_dev, client);
174 if (ret < 0)
175 return ret;
176
177 ret = st_accel_common_probe(indio_dev);
178 if (ret < 0)
179 return ret;
180
181 return 0;
182 }
183
st_accel_i2c_remove(struct i2c_client * client)184 static int st_accel_i2c_remove(struct i2c_client *client)
185 {
186 st_accel_common_remove(i2c_get_clientdata(client));
187
188 return 0;
189 }
190
191 static struct i2c_driver st_accel_driver = {
192 .driver = {
193 .name = "st-accel-i2c",
194 .of_match_table = st_accel_of_match,
195 .acpi_match_table = ACPI_PTR(st_accel_acpi_match),
196 },
197 .probe_new = st_accel_i2c_probe,
198 .remove = st_accel_i2c_remove,
199 .id_table = st_accel_id_table,
200 };
201 module_i2c_driver(st_accel_driver);
202
203 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
204 MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver");
205 MODULE_LICENSE("GPL v2");
206
