diff options
Diffstat (limited to 'drivers/iio/magnetometer/st_magn_spi.c')
| -rw-r--r-- | drivers/iio/magnetometer/st_magn_spi.c | 72 | 
1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/iio/magnetometer/st_magn_spi.c b/drivers/iio/magnetometer/st_magn_spi.c new file mode 100644 index 00000000000..a6143ea51df --- /dev/null +++ b/drivers/iio/magnetometer/st_magn_spi.c @@ -0,0 +1,72 @@ +/* + * STMicroelectronics magnetometers driver + * + * Copyright 2012-2013 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_magn.h" + +static int st_magn_spi_probe(struct spi_device *spi) +{ +	struct iio_dev *indio_dev; +	struct st_sensor_data *mdata; +	int err; + +	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*mdata)); +	if (!indio_dev) +		return -ENOMEM; + +	mdata = iio_priv(indio_dev); +	mdata->dev = &spi->dev; + +	st_sensors_spi_configure(indio_dev, spi, mdata); + +	err = st_magn_common_probe(indio_dev, NULL); +	if (err < 0) +		return err; + +	return 0; +} + +static int st_magn_spi_remove(struct spi_device *spi) +{ +	struct iio_dev *indio_dev = spi_get_drvdata(spi); +	st_magn_common_remove(indio_dev); + +	return 0; +} + +static const struct spi_device_id st_magn_id_table[] = { +	{ LSM303DLHC_MAGN_DEV_NAME }, +	{ LSM303DLM_MAGN_DEV_NAME }, +	{ LIS3MDL_MAGN_DEV_NAME }, +	{}, +}; +MODULE_DEVICE_TABLE(spi, st_magn_id_table); + +static struct spi_driver st_magn_driver = { +	.driver = { +		.owner = THIS_MODULE, +		.name = "st-magn-spi", +	}, +	.probe = st_magn_spi_probe, +	.remove = st_magn_spi_remove, +	.id_table = st_magn_id_table, +}; +module_spi_driver(st_magn_driver); + +MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>"); +MODULE_DESCRIPTION("STMicroelectronics magnetometers spi driver"); +MODULE_LICENSE("GPL v2");  | 
