127 lines
2.9 KiB
C
127 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* STMicroelectronics pressures driver
|
|
*
|
|
* Copyright 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_pressure.h"
|
|
|
|
/*
|
|
* For new single-chip sensors use <device_name> as compatible string.
|
|
* For old single-chip devices keep <device_name>-press to maintain
|
|
* compatibility
|
|
*/
|
|
static const struct of_device_id st_press_of_match[] = {
|
|
{
|
|
.compatible = "st,lps001wp-press",
|
|
.data = LPS001WP_PRESS_DEV_NAME,
|
|
},
|
|
{
|
|
.compatible = "st,lps25h-press",
|
|
.data = LPS25H_PRESS_DEV_NAME,
|
|
},
|
|
{
|
|
.compatible = "st,lps331ap-press",
|
|
.data = LPS331AP_PRESS_DEV_NAME,
|
|
},
|
|
{
|
|
.compatible = "st,lps22hb-press",
|
|
.data = LPS22HB_PRESS_DEV_NAME,
|
|
},
|
|
{
|
|
.compatible = "st,lps33hw",
|
|
.data = LPS33HW_PRESS_DEV_NAME,
|
|
},
|
|
{
|
|
.compatible = "st,lps35hw",
|
|
.data = LPS35HW_PRESS_DEV_NAME,
|
|
},
|
|
{
|
|
.compatible = "st,lps22hh",
|
|
.data = LPS22HH_PRESS_DEV_NAME,
|
|
},
|
|
{
|
|
.compatible = "st,lps22df",
|
|
.data = LPS22DF_PRESS_DEV_NAME,
|
|
},
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, st_press_of_match);
|
|
|
|
static int st_press_spi_probe(struct spi_device *spi)
|
|
{
|
|
const struct st_sensor_settings *settings;
|
|
struct st_sensor_data *press_data;
|
|
struct iio_dev *indio_dev;
|
|
int err;
|
|
|
|
st_sensors_dev_name_probe(&spi->dev, spi->modalias, sizeof(spi->modalias));
|
|
|
|
settings = st_press_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(*press_data));
|
|
if (!indio_dev)
|
|
return -ENOMEM;
|
|
|
|
press_data = iio_priv(indio_dev);
|
|
press_data->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;
|
|
|
|
return st_press_common_probe(indio_dev);
|
|
}
|
|
|
|
static const struct spi_device_id st_press_id_table[] = {
|
|
{ LPS001WP_PRESS_DEV_NAME },
|
|
{ LPS25H_PRESS_DEV_NAME },
|
|
{ LPS331AP_PRESS_DEV_NAME },
|
|
{ LPS22HB_PRESS_DEV_NAME },
|
|
{ LPS33HW_PRESS_DEV_NAME },
|
|
{ LPS35HW_PRESS_DEV_NAME },
|
|
{ LPS22HH_PRESS_DEV_NAME },
|
|
{ LPS22DF_PRESS_DEV_NAME },
|
|
{ "lps001wp-press" },
|
|
{ "lps25h-press", },
|
|
{ "lps331ap-press" },
|
|
{ "lps22hb-press" },
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(spi, st_press_id_table);
|
|
|
|
static struct spi_driver st_press_driver = {
|
|
.driver = {
|
|
.name = "st-press-spi",
|
|
.of_match_table = st_press_of_match,
|
|
},
|
|
.probe = st_press_spi_probe,
|
|
.id_table = st_press_id_table,
|
|
};
|
|
module_spi_driver(st_press_driver);
|
|
|
|
MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
|
|
MODULE_DESCRIPTION("STMicroelectronics pressures spi driver");
|
|
MODULE_LICENSE("GPL v2");
|
|
MODULE_IMPORT_NS(IIO_ST_SENSORS);
|