summaryrefslogtreecommitdiff
path: root/drivers/iio/accel/st_accel_i2c.c
blob: 3f02fd5d5946505fc4f1c88cedeaa0ed76f84d16 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
// SPDX-License-Identifier: GPL-2.0-only
/*
 * STMicroelectronics accelerometers driver
 *
 * Copyright 2012-2013 STMicroelectronics Inc.
 *
 * Denis Ciocca <denis.ciocca@st.com>
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/acpi.h>
#include <linux/i2c.h>
#include <linux/iio/iio.h>

#include <linux/iio/common/st_sensors_i2c.h>
#include "st_accel.h"

static const struct of_device_id st_accel_of_match[] = {
	{
		/* An older compatible */
		.compatible = "st,lis3lv02d",
		.data = LIS3LV02DL_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis3lv02dl-accel",
		.data = LIS3LV02DL_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm303dlh-accel",
		.data = LSM303DLH_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm303dlhc-accel",
		.data = LSM303DLHC_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis3dh-accel",
		.data = LIS3DH_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm330d-accel",
		.data = LSM330D_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm330dl-accel",
		.data = LSM330DL_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm330dlc-accel",
		.data = LSM330DLC_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis331dl-accel",
		.data = LIS331DL_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis331dlh-accel",
		.data = LIS331DLH_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm303dl-accel",
		.data = LSM303DL_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm303dlm-accel",
		.data = LSM303DLM_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm330-accel",
		.data = LSM330_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm303agr-accel",
		.data = LSM303AGR_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis2dh12-accel",
		.data = LIS2DH12_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,h3lis331dl-accel",
		.data = H3LIS331DL_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis3l02dq",
		.data = LIS3L02DQ_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lng2dm-accel",
		.data = LNG2DM_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis2dw12",
		.data = LIS2DW12_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis3de",
		.data = LIS3DE_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis2de12",
		.data = LIS2DE12_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis2hh12",
		.data = LIS2HH12_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lis302dl",
		.data = LIS302DL_ACCEL_DEV_NAME,
	},
	{
		.compatible = "st,lsm303c-accel",
		.data = LSM303C_ACCEL_DEV_NAME,
	},
	{
		.compatible = "silan,sc7a20",
		.data = SC7A20_ACCEL_DEV_NAME,
	},
	{},
};
MODULE_DEVICE_TABLE(of, st_accel_of_match);

#ifdef CONFIG_ACPI
static const struct acpi_device_id st_accel_acpi_match[] = {
	{"SMO8840", (kernel_ulong_t)LIS2DH12_ACCEL_DEV_NAME},
	{"SMO8A90", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME},
	{ },
};
MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match);
#endif

static const struct i2c_device_id st_accel_id_table[] = {
	{ LSM303DLH_ACCEL_DEV_NAME },
	{ LSM303DLHC_ACCEL_DEV_NAME },
	{ LIS3DH_ACCEL_DEV_NAME },
	{ LSM330D_ACCEL_DEV_NAME },
	{ LSM330DL_ACCEL_DEV_NAME },
	{ LSM330DLC_ACCEL_DEV_NAME },
	{ LIS331DLH_ACCEL_DEV_NAME },
	{ LSM303DL_ACCEL_DEV_NAME },
	{ LSM303DLM_ACCEL_DEV_NAME },
	{ LSM330_ACCEL_DEV_NAME },
	{ LSM303AGR_ACCEL_DEV_NAME },
	{ LIS2DH12_ACCEL_DEV_NAME },
	{ LIS3L02DQ_ACCEL_DEV_NAME },
	{ LNG2DM_ACCEL_DEV_NAME },
	{ H3LIS331DL_ACCEL_DEV_NAME },
	{ LIS331DL_ACCEL_DEV_NAME },
	{ LIS3LV02DL_ACCEL_DEV_NAME },
	{ LIS2DW12_ACCEL_DEV_NAME },
	{ LIS3DE_ACCEL_DEV_NAME },
	{ LIS2DE12_ACCEL_DEV_NAME },
	{ LIS2HH12_ACCEL_DEV_NAME },
	{ LIS302DL_ACCEL_DEV_NAME },
	{ LSM303C_ACCEL_DEV_NAME },
	{ SC7A20_ACCEL_DEV_NAME },
	{},
};
MODULE_DEVICE_TABLE(i2c, st_accel_id_table);

static int st_accel_i2c_probe(struct i2c_client *client)
{
	const struct st_sensor_settings *settings;
	struct st_sensor_data *adata;
	struct iio_dev *indio_dev;
	int ret;

	st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name));

	settings = st_accel_get_settings(client->name);
	if (!settings) {
		dev_err(&client->dev, "device name %s not recognized.\n",
			client->name);
		return -ENODEV;
	}

	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata));
	if (!indio_dev)
		return -ENOMEM;

	adata = iio_priv(indio_dev);
	adata->sensor_settings = (struct st_sensor_settings *)settings;

	ret = st_sensors_i2c_configure(indio_dev, client);
	if (ret < 0)
		return ret;

	ret = st_sensors_power_enable(indio_dev);
	if (ret)
		return ret;

	return st_accel_common_probe(indio_dev);
}

static struct i2c_driver st_accel_driver = {
	.driver = {
		.name = "st-accel-i2c",
		.of_match_table = st_accel_of_match,
		.acpi_match_table = ACPI_PTR(st_accel_acpi_match),
	},
	.probe_new = st_accel_i2c_probe,
	.id_table = st_accel_id_table,
};
module_i2c_driver(st_accel_driver);

MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver");
MODULE_LICENSE("GPL v2");
MODULE_IMPORT_NS(IIO_ST_SENSORS);