1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * STMicroelectronics gyroscopes 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.h>
 17#include <linux/iio/common/st_sensors_i2c.h>
 18#include "st_gyro.h"
 19
 20static const struct of_device_id st_gyro_of_match[] = {
 21	{
 22		.compatible = "st,l3g4200d-gyro",
 23		.data = L3G4200D_GYRO_DEV_NAME,
 24	},
 25	{
 26		.compatible = "st,lsm330d-gyro",
 27		.data = LSM330D_GYRO_DEV_NAME,
 28	},
 29	{
 30		.compatible = "st,lsm330dl-gyro",
 31		.data = LSM330DL_GYRO_DEV_NAME,
 32	},
 33	{
 34		.compatible = "st,lsm330dlc-gyro",
 35		.data = LSM330DLC_GYRO_DEV_NAME,
 36	},
 37	{
 38		.compatible = "st,l3gd20-gyro",
 39		.data = L3GD20_GYRO_DEV_NAME,
 40	},
 41	{
 42		.compatible = "st,l3gd20h-gyro",
 43		.data = L3GD20H_GYRO_DEV_NAME,
 44	},
 45	{
 46		.compatible = "st,l3g4is-gyro",
 47		.data = L3G4IS_GYRO_DEV_NAME,
 48	},
 49	{
 50		.compatible = "st,lsm330-gyro",
 51		.data = LSM330_GYRO_DEV_NAME,
 52	},
 53	{
 54		.compatible = "st,lsm9ds0-gyro",
 55		.data = LSM9DS0_GYRO_DEV_NAME,
 56	},
 57	{},
 58};
 59MODULE_DEVICE_TABLE(of, st_gyro_of_match);
 60
 61static int st_gyro_i2c_probe(struct i2c_client *client)
 62{
 63	const struct st_sensor_settings *settings;
 64	struct st_sensor_data *gdata;
 65	struct iio_dev *indio_dev;
 66	int err;
 67
 68	st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name));
 69
 70	settings = st_gyro_get_settings(client->name);
 71	if (!settings) {
 72		dev_err(&client->dev, "device name %s not recognized.\n",
 73			client->name);
 74		return -ENODEV;
 75	}
 76
 77	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*gdata));
 78	if (!indio_dev)
 79		return -ENOMEM;
 80
 81	gdata = iio_priv(indio_dev);
 82	gdata->sensor_settings = (struct st_sensor_settings *)settings;
 83
 84	err = st_sensors_i2c_configure(indio_dev, client);
 85	if (err < 0)
 86		return err;
 87
 88	err = st_sensors_power_enable(indio_dev);
 89	if (err)
 90		return err;
 91
 92	return st_gyro_common_probe(indio_dev);
 93}
 94
 95static const struct i2c_device_id st_gyro_id_table[] = {
 96	{ L3G4200D_GYRO_DEV_NAME },
 97	{ LSM330D_GYRO_DEV_NAME },
 98	{ LSM330DL_GYRO_DEV_NAME },
 99	{ LSM330DLC_GYRO_DEV_NAME },
100	{ L3GD20_GYRO_DEV_NAME },
101	{ L3GD20H_GYRO_DEV_NAME },
102	{ L3G4IS_GYRO_DEV_NAME },
103	{ LSM330_GYRO_DEV_NAME },
104	{ LSM9DS0_GYRO_DEV_NAME },
105	{},
106};
107MODULE_DEVICE_TABLE(i2c, st_gyro_id_table);
108
109static struct i2c_driver st_gyro_driver = {
110	.driver = {
111		.name = "st-gyro-i2c",
112		.of_match_table = st_gyro_of_match,
113	},
114	.probe = st_gyro_i2c_probe,
115	.id_table = st_gyro_id_table,
116};
117module_i2c_driver(st_gyro_driver);
118
119MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
120MODULE_DESCRIPTION("STMicroelectronics gyroscopes i2c driver");
121MODULE_LICENSE("GPL v2");
122MODULE_IMPORT_NS(IIO_ST_SENSORS);