// SPDX-License-Identifier: GPL-2.0-only
/*
 * STMicroelectronics magnetometers 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/i2c.h>
#include <linux/iio/iio.h>

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

static const struct of_device_id st_magn_of_match[] = {
        {
                .compatible = "st,lsm303dlh-magn",
                .data = LSM303DLH_MAGN_DEV_NAME,
        },
        {
                .compatible = "st,lsm303dlhc-magn",
                .data = LSM303DLHC_MAGN_DEV_NAME,
        },
        {
                .compatible = "st,lsm303dlm-magn",
                .data = LSM303DLM_MAGN_DEV_NAME,
        },
        {
                .compatible = "st,lis3mdl-magn",
                .data = LIS3MDL_MAGN_DEV_NAME,
        },
        {
                .compatible = "st,lsm303agr-magn",
                .data = LSM303AGR_MAGN_DEV_NAME,
        },
        {
                .compatible = "st,lis2mdl",
                .data = LIS2MDL_MAGN_DEV_NAME,
        },
        {
                .compatible = "st,lsm9ds1-magn",
                .data = LSM9DS1_MAGN_DEV_NAME,
        },
        {
                .compatible = "st,iis2mdc",
                .data = IIS2MDC_MAGN_DEV_NAME,
        },
        {
                .compatible = "st,lsm303c-magn",
                .data = LSM303C_MAGN_DEV_NAME,
        },
        { }
};
MODULE_DEVICE_TABLE(of, st_magn_of_match);

static int st_magn_i2c_probe(struct i2c_client *client)
{
        const struct st_sensor_settings *settings;
        struct st_sensor_data *mdata;
        struct iio_dev *indio_dev;
        int err;

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

        settings = st_magn_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(*mdata));
        if (!indio_dev)
                return -ENOMEM;

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

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

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

        return st_magn_common_probe(indio_dev);
}

static const struct i2c_device_id st_magn_id_table[] = {
        { LSM303DLH_MAGN_DEV_NAME },
        { LSM303DLHC_MAGN_DEV_NAME },
        { LSM303DLM_MAGN_DEV_NAME },
        { LIS3MDL_MAGN_DEV_NAME },
        { LSM303AGR_MAGN_DEV_NAME },
        { LIS2MDL_MAGN_DEV_NAME },
        { LSM9DS1_MAGN_DEV_NAME },
        { IIS2MDC_MAGN_DEV_NAME },
        { LSM303C_MAGN_DEV_NAME },
        { }
};
MODULE_DEVICE_TABLE(i2c, st_magn_id_table);

static struct i2c_driver st_magn_driver = {
        .driver = {
                .name = "st-magn-i2c",
                .of_match_table = st_magn_of_match,
        },
        .probe = st_magn_i2c_probe,
        .id_table = st_magn_id_table,
};
module_i2c_driver(st_magn_driver);

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