291d83f2f4
This patch set magn settings right after probe start. This is done in preparation of regmap that needs different configuration based on multiread bit value. Signed-off-by: Denis Ciocca <denis.ciocca@st.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
125 lines
2.8 KiB
C
125 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* STMicroelectronics magnetometers driver
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*
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* Copyright 2012-2013 STMicroelectronics Inc.
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*
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* Denis Ciocca <denis.ciocca@st.com>
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/i2c.h>
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#include <linux/iio/iio.h>
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#include <linux/iio/common/st_sensors.h>
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#include <linux/iio/common/st_sensors_i2c.h>
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#include "st_magn.h"
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#ifdef CONFIG_OF
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static const struct of_device_id st_magn_of_match[] = {
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{
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.compatible = "st,lsm303dlh-magn",
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.data = LSM303DLH_MAGN_DEV_NAME,
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},
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{
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.compatible = "st,lsm303dlhc-magn",
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.data = LSM303DLHC_MAGN_DEV_NAME,
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},
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{
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.compatible = "st,lsm303dlm-magn",
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.data = LSM303DLM_MAGN_DEV_NAME,
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},
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{
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.compatible = "st,lis3mdl-magn",
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.data = LIS3MDL_MAGN_DEV_NAME,
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},
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{
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.compatible = "st,lsm303agr-magn",
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.data = LSM303AGR_MAGN_DEV_NAME,
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},
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{
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.compatible = "st,lis2mdl",
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.data = LIS2MDL_MAGN_DEV_NAME,
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},
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{
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.compatible = "st,lsm9ds1-magn",
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.data = LSM9DS1_MAGN_DEV_NAME,
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},
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{},
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};
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MODULE_DEVICE_TABLE(of, st_magn_of_match);
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#else
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#define st_magn_of_match NULL
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#endif
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static int st_magn_i2c_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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const struct st_sensor_settings *settings;
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struct st_sensor_data *mdata;
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struct iio_dev *indio_dev;
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int err;
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st_sensors_of_name_probe(&client->dev, st_magn_of_match,
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client->name, sizeof(client->name));
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settings = st_magn_get_settings(client->name);
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if (!settings) {
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dev_err(&client->dev, "device name %s not recognized.\n",
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client->name);
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return -ENODEV;
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}
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indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*mdata));
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if (!indio_dev)
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return -ENOMEM;
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mdata = iio_priv(indio_dev);
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mdata->sensor_settings = (struct st_sensor_settings *)settings;
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st_sensors_i2c_configure(indio_dev, client, mdata);
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err = st_magn_common_probe(indio_dev);
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if (err < 0)
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return err;
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return 0;
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}
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static int st_magn_i2c_remove(struct i2c_client *client)
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{
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struct iio_dev *indio_dev = i2c_get_clientdata(client);
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st_magn_common_remove(indio_dev);
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return 0;
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}
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static const struct i2c_device_id st_magn_id_table[] = {
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{ LSM303DLH_MAGN_DEV_NAME },
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{ LSM303DLHC_MAGN_DEV_NAME },
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{ LSM303DLM_MAGN_DEV_NAME },
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{ LIS3MDL_MAGN_DEV_NAME },
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{ LSM303AGR_MAGN_DEV_NAME },
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{ LIS2MDL_MAGN_DEV_NAME },
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{ LSM9DS1_MAGN_DEV_NAME },
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{},
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};
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MODULE_DEVICE_TABLE(i2c, st_magn_id_table);
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static struct i2c_driver st_magn_driver = {
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.driver = {
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.name = "st-magn-i2c",
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.of_match_table = of_match_ptr(st_magn_of_match),
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},
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.probe = st_magn_i2c_probe,
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.remove = st_magn_i2c_remove,
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.id_table = st_magn_id_table,
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};
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module_i2c_driver(st_magn_driver);
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MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
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MODULE_DESCRIPTION("STMicroelectronics magnetometers i2c driver");
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MODULE_LICENSE("GPL v2");
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