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author | Denis Ciocca <denis.ciocca@gmail.com> | 2013-01-25 23:44:00 +0000 |
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committer | Jonathan Cameron <jic23@kernel.org> | 2013-01-31 17:56:43 +0000 |
commit | d62511689de5d34d3a07c43db1f46a234bb77b5f (patch) | |
tree | 945bdd5e1ab436db7ed3c1d58966cb7291320662 /drivers/iio/accel/st_accel_spi.c | |
parent | 23491b513bcd3dfe4ddb94547d73d9deb94eda44 (diff) | |
download | op-kernel-dev-d62511689de5d34d3a07c43db1f46a234bb77b5f.zip op-kernel-dev-d62511689de5d34d3a07c43db1f46a234bb77b5f.tar.gz |
iio:accel: Add STMicroelectronics accelerometers driver
This patch adds a generic accelerometer driver for STMicroelectronics
accelerometers, currently it supports:
LSM303DLH, LSM303DLHC, LIS3DH, LSM330D, LSM330DL, LSM330DLC,
LIS331DLH, LSM303DL, LSM303DLM, LSM330.
Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/accel/st_accel_spi.c')
-rw-r--r-- | drivers/iio/accel/st_accel_spi.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/drivers/iio/accel/st_accel_spi.c b/drivers/iio/accel/st_accel_spi.c new file mode 100644 index 0000000..dbd45c0 --- /dev/null +++ b/drivers/iio/accel/st_accel_spi.c @@ -0,0 +1,86 @@ +/* + * STMicroelectronics accelerometers 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/trigger.h> + +#include <linux/iio/common/st_sensors.h> +#include <linux/iio/common/st_sensors_spi.h> +#include "st_accel.h" + +static int st_accel_spi_probe(struct spi_device *spi) +{ + struct iio_dev *indio_dev; + struct st_sensor_data *adata; + int err; + + indio_dev = iio_device_alloc(sizeof(*adata)); + if (indio_dev == NULL) { + err = -ENOMEM; + goto iio_device_alloc_error; + } + + adata = iio_priv(indio_dev); + adata->dev = &spi->dev; + + st_sensors_spi_configure(indio_dev, spi, adata); + + err = st_accel_common_probe(indio_dev); + if (err < 0) + goto st_accel_common_probe_error; + + return 0; + +st_accel_common_probe_error: + iio_device_free(indio_dev); +iio_device_alloc_error: + return err; +} + +static int st_accel_spi_remove(struct spi_device *spi) +{ + st_accel_common_remove(spi_get_drvdata(spi)); + + return 0; +} + +static const struct spi_device_id st_accel_id_table[] = { + { LSM303DLH_ACCEL_DEV_NAME }, + { LSM303DLHC_ACCEL_DEV_NAME }, + { LIS3DH_ACCEL_DEV_NAME }, + { LSM330D_ACCEL_DEV_NAME }, + { LSM330DL_ACCEL_DEV_NAME }, + { LSM330DLC_ACCEL_DEV_NAME }, + { LIS331DLH_ACCEL_DEV_NAME }, + { LSM303DL_ACCEL_DEV_NAME }, + { LSM303DLM_ACCEL_DEV_NAME }, + { LSM330_ACCEL_DEV_NAME }, + {}, +}; +MODULE_DEVICE_TABLE(spi, st_accel_id_table); + +static struct spi_driver st_accel_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "st-accel-spi", + }, + .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"); |