st_accel_i2c.c

  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,lis2ds12",
107		.data = LIS2DS12_ACCEL_DEV_NAME,
108	},
109	{
110		.compatible = "st,lis2hh12",
111		.data = LIS2HH12_ACCEL_DEV_NAME,
112	},
113	{
114		.compatible = "st,lis302dl",
115		.data = LIS302DL_ACCEL_DEV_NAME,
116	},
117	{
118		.compatible = "st,lsm303c-accel",
119		.data = LSM303C_ACCEL_DEV_NAME,
120	},
121	{
122		.compatible = "silan,sc7a20",
123		.data = SC7A20_ACCEL_DEV_NAME,
124	},
125	{
126		.compatible = "st,iis328dq",
127		.data = IIS328DQ_ACCEL_DEV_NAME,
128	},
129	{ }
130};
131MODULE_DEVICE_TABLE(of, st_accel_of_match);
132
133static const struct acpi_device_id st_accel_acpi_match[] = {
134	{"SMO8840", (kernel_ulong_t)LIS2DH12_ACCEL_DEV_NAME},
135	{"SMO8A90", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME},
136	{ }
137};
138MODULE_DEVICE_TABLE(acpi, st_accel_acpi_match);
139
140static const struct i2c_device_id st_accel_id_table[] = {
141	{ LSM303DLH_ACCEL_DEV_NAME },
142	{ LSM303DLHC_ACCEL_DEV_NAME },
143	{ LIS3DH_ACCEL_DEV_NAME },
144	{ LSM330D_ACCEL_DEV_NAME },
145	{ LSM330DL_ACCEL_DEV_NAME },
146	{ LSM330DLC_ACCEL_DEV_NAME },
147	{ LIS331DLH_ACCEL_DEV_NAME },
148	{ LSM303DL_ACCEL_DEV_NAME },
149	{ LSM303DLM_ACCEL_DEV_NAME },
150	{ LSM330_ACCEL_DEV_NAME },
151	{ LSM303AGR_ACCEL_DEV_NAME },
152	{ LIS2DH12_ACCEL_DEV_NAME },
153	{ LIS3L02DQ_ACCEL_DEV_NAME },
154	{ LNG2DM_ACCEL_DEV_NAME },
155	{ H3LIS331DL_ACCEL_DEV_NAME },
156	{ LIS331DL_ACCEL_DEV_NAME },
157	{ LIS3LV02DL_ACCEL_DEV_NAME },
158	{ LIS2DW12_ACCEL_DEV_NAME },
159	{ LIS3DE_ACCEL_DEV_NAME },
160	{ LIS2DE12_ACCEL_DEV_NAME },
161	{ LIS2DS12_ACCEL_DEV_NAME },
162	{ LIS2HH12_ACCEL_DEV_NAME },
163	{ LIS302DL_ACCEL_DEV_NAME },
164	{ LSM303C_ACCEL_DEV_NAME },
165	{ SC7A20_ACCEL_DEV_NAME },
166	{ IIS328DQ_ACCEL_DEV_NAME },
167	{ }
168};
169MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
170
171static int st_accel_i2c_probe(struct i2c_client *client)
172{
173	const struct st_sensor_settings *settings;
174	struct st_sensor_data *adata;
175	struct iio_dev *indio_dev;
176	int ret;
177
178	st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name));
179
180	settings = st_accel_get_settings(client->name);
181	if (!settings) {
182		dev_err(&client->dev, "device name %s not recognized.\n",
183			client->name);
184		return -ENODEV;
185	}
186
187	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adata));
188	if (!indio_dev)
189		return -ENOMEM;
190
191	adata = iio_priv(indio_dev);
192	adata->sensor_settings = (struct st_sensor_settings *)settings;
193
194	ret = st_sensors_i2c_configure(indio_dev, client);
195	if (ret < 0)
196		return ret;
197
198	ret = st_sensors_power_enable(indio_dev);
199	if (ret)
200		return ret;
201
202	return st_accel_common_probe(indio_dev);
203}
204
205static struct i2c_driver st_accel_driver = {
206	.driver = {
207		.name = "st-accel-i2c",
208		.of_match_table = st_accel_of_match,
209		.acpi_match_table = st_accel_acpi_match,
210	},
211	.probe = st_accel_i2c_probe,
212	.id_table = st_accel_id_table,
213};
214module_i2c_driver(st_accel_driver);
215
216MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
217MODULE_DESCRIPTION("STMicroelectronics accelerometers i2c driver");
218MODULE_LICENSE("GPL v2");
219MODULE_IMPORT_NS("IIO_ST_SENSORS");