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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * STMicroelectronics magnetometers driver4 *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_magn.h"19 20static const struct of_device_id st_magn_of_match[] = {21 {22 .compatible = "st,lsm303dlh-magn",23 .data = LSM303DLH_MAGN_DEV_NAME,24 },25 {26 .compatible = "st,lsm303dlhc-magn",27 .data = LSM303DLHC_MAGN_DEV_NAME,28 },29 {30 .compatible = "st,lsm303dlm-magn",31 .data = LSM303DLM_MAGN_DEV_NAME,32 },33 {34 .compatible = "st,lis3mdl-magn",35 .data = LIS3MDL_MAGN_DEV_NAME,36 },37 {38 .compatible = "st,lsm303agr-magn",39 .data = LSM303AGR_MAGN_DEV_NAME,40 },41 {42 .compatible = "st,lis2mdl",43 .data = LIS2MDL_MAGN_DEV_NAME,44 },45 {46 .compatible = "st,lsm9ds1-magn",47 .data = LSM9DS1_MAGN_DEV_NAME,48 },49 {50 .compatible = "st,iis2mdc",51 .data = IIS2MDC_MAGN_DEV_NAME,52 },53 {54 .compatible = "st,lsm303c-magn",55 .data = LSM303C_MAGN_DEV_NAME,56 },57 {},58};59MODULE_DEVICE_TABLE(of, st_magn_of_match);60 61static int st_magn_i2c_probe(struct i2c_client *client)62{63 const struct st_sensor_settings *settings;64 struct st_sensor_data *mdata;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_magn_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(*mdata));78 if (!indio_dev)79 return -ENOMEM;80 81 mdata = iio_priv(indio_dev);82 mdata->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_magn_common_probe(indio_dev);93}94 95static const struct i2c_device_id st_magn_id_table[] = {96 { LSM303DLH_MAGN_DEV_NAME },97 { LSM303DLHC_MAGN_DEV_NAME },98 { LSM303DLM_MAGN_DEV_NAME },99 { LIS3MDL_MAGN_DEV_NAME },100 { LSM303AGR_MAGN_DEV_NAME },101 { LIS2MDL_MAGN_DEV_NAME },102 { LSM9DS1_MAGN_DEV_NAME },103 { IIS2MDC_MAGN_DEV_NAME },104 { LSM303C_MAGN_DEV_NAME },105 {},106};107MODULE_DEVICE_TABLE(i2c, st_magn_id_table);108 109static struct i2c_driver st_magn_driver = {110 .driver = {111 .name = "st-magn-i2c",112 .of_match_table = st_magn_of_match,113 },114 .probe = st_magn_i2c_probe,115 .id_table = st_magn_id_table,116};117module_i2c_driver(st_magn_driver);118 119MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");120MODULE_DESCRIPTION("STMicroelectronics magnetometers i2c driver");121MODULE_LICENSE("GPL v2");122MODULE_IMPORT_NS(IIO_ST_SENSORS);123