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// SPDX-License-Identifier: GPL-2.0-only
/*
* STMicroelectronics accelerometers 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/spi/spi.h>
#include <linux/iio/iio.h>
#include <linux/iio/common/st_sensors.h>
#include <linux/iio/common/st_sensors_spi.h>
#include "st_accel.h"
/*
* For new single-chip sensors use <device_name> as compatible string.
* For old single-chip devices keep <device_name>-accel to maintain
* compatibility
*/
static const struct of_device_id st_accel_of_match[] = {
{
/* An older compatible */
.compatible = "st,lis302dl-spi",
.data = LIS3LV02DL_ACCEL_DEV_NAME,
},
{
.compatible = "st,lis3lv02dl-accel",
.data = LIS3LV02DL_ACCEL_DEV_NAME,
},
{
.compatible = "st,lis3dh-accel",
.data = LIS3DH_ACCEL_DEV_NAME,
},
{
.compatible = "st,lsm330d-accel",
.data = LSM330D_ACCEL_DEV_NAME,
},
{
.compatible = "st,lsm330dl-accel",
.data = LSM330DL_ACCEL_DEV_NAME,
},
{
.compatible = "st,lsm330dlc-accel",
.data = LSM330DLC_ACCEL_DEV_NAME,
},
{
.compatible = "st,lis331dlh-accel",
.data = LIS331DLH_ACCEL_DEV_NAME,
},
{
.compatible = "st,lsm330-accel",
.data = LSM330_ACCEL_DEV_NAME,
},
{
.compatible = "st,lsm303agr-accel",
.data = LSM303AGR_ACCEL_DEV_NAME,
},
{
.compatible = "st,lis2dh12-accel",
.data = LIS2DH12_ACCEL_DEV_NAME,
},
{
.compatible = "st,lis3l02dq",
.data = LIS3L02DQ_ACCEL_DEV_NAME,
},
{
.compatible = "st,lng2dm-accel",
.data = LNG2DM_ACCEL_DEV_NAME,
},
{
.compatible = "st,h3lis331dl-accel",
.data = H3LIS331DL_ACCEL_DEV_NAME,
},
{
.compatible = "st,lis331dl-accel",
.data = LIS331DL_ACCEL_DEV_NAME,
},
{
.compatible = "st,lis2dw12",
.data = LIS2DW12_ACCEL_DEV_NAME,
},
{
.compatible = "st,lis3dhh",
.data = LIS3DHH_ACCEL_DEV_NAME,
},
{
.compatible = "st,lis3de",
.data = LIS3DE_ACCEL_DEV_NAME,
},
{}
};
MODULE_DEVICE_TABLE(of, st_accel_of_match);
static int st_accel_spi_probe(struct spi_device *spi)
{
const struct st_sensor_settings *settings;
struct st_sensor_data *adata;
struct iio_dev *indio_dev;
int err;
st_sensors_dev_name_probe(&spi->dev, spi->modalias, sizeof(spi->modalias));
settings = st_accel_get_settings(spi->modalias);
if (!settings) {
dev_err(&spi->dev, "device name %s not recognized.\n",
spi->modalias);
return -ENODEV;
}
indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adata));
if (!indio_dev)
return -ENOMEM;
adata = iio_priv(indio_dev);
adata->sensor_settings = (struct st_sensor_settings *)settings;
err = st_sensors_spi_configure(indio_dev, spi);
if (err < 0)
return err;
err = st_sensors_power_enable(indio_dev);
if (err)
return err;
err = st_accel_common_probe(indio_dev);
if (err < 0)
goto st_accel_power_off;
return 0;
st_accel_power_off:
st_sensors_power_disable(indio_dev);
return err;
}
static int st_accel_spi_remove(struct spi_device *spi)
{
struct iio_dev *indio_dev = spi_get_drvdata(spi);
st_sensors_power_disable(indio_dev);
st_accel_common_remove(indio_dev);
return 0;
}
static const struct spi_device_id st_accel_id_table[] = {
{ LIS3DH_ACCEL_DEV_NAME },
{ LSM330D_ACCEL_DEV_NAME },
{ LSM330DL_ACCEL_DEV_NAME },
{ LSM330DLC_ACCEL_DEV_NAME },
{ LIS331DLH_ACCEL_DEV_NAME },
{ LSM330_ACCEL_DEV_NAME },
{ LSM303AGR_ACCEL_DEV_NAME },
{ LIS2DH12_ACCEL_DEV_NAME },
{ LIS3L02DQ_ACCEL_DEV_NAME },
{ LNG2DM_ACCEL_DEV_NAME },
{ H3LIS331DL_ACCEL_DEV_NAME },
{ LIS331DL_ACCEL_DEV_NAME },
{ LIS3LV02DL_ACCEL_DEV_NAME },
{ LIS2DW12_ACCEL_DEV_NAME },
{ LIS3DHH_ACCEL_DEV_NAME },
{ LIS3DE_ACCEL_DEV_NAME },
{},
};
MODULE_DEVICE_TABLE(spi, st_accel_id_table);
static struct spi_driver st_accel_driver = {
.driver = {
.name = "st-accel-spi",
.of_match_table = st_accel_of_match,
},
.probe = st_accel_spi_probe,
.remove = st_accel_spi_remove,
.id_table = st_accel_id_table,
};
module_spi_driver(st_accel_driver);
MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
MODULE_DESCRIPTION("STMicroelectronics accelerometers spi driver");
MODULE_LICENSE("GPL v2");
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