huawei-mrd-kernel/drivers/iio/pressure/st_pressure_spi.c

70 lines
1.5 KiB
C

/*
* STMicroelectronics pressures driver
*
* Copyright 2013 STMicroelectronics Inc.
*
* Denis Ciocca <denis.ciocca@st.com>
*
* Licensed under the GPL-2.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.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"
static int st_press_spi_probe(struct spi_device *spi)
{
struct iio_dev *indio_dev;
struct st_sensor_data *press_data;
int err;
indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*press_data));
if (indio_dev == NULL)
return -ENOMEM;
press_data = iio_priv(indio_dev);
st_sensors_spi_configure(indio_dev, spi, press_data);
err = st_press_common_probe(indio_dev);
if (err < 0)
return err;
return 0;
}
static int st_press_spi_remove(struct spi_device *spi)
{
st_press_common_remove(spi_get_drvdata(spi));
return 0;
}
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 },
{},
};
MODULE_DEVICE_TABLE(spi, st_press_id_table);
static struct spi_driver st_press_driver = {
.driver = {
.name = "st-press-spi",
},
.probe = st_press_spi_probe,
.remove = st_press_spi_remove,
.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");