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iio: magnetometer: st_magn_spi: add OF capability to st_magn_spi
Add device tree support for LIS3MDL and LSM303AGR magnetometer sensors Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@st.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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1 changed files with 25 additions and 0 deletions
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@ -18,6 +18,28 @@
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#include <linux/iio/common/st_sensors_spi.h>
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#include "st_magn.h"
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#ifdef CONFIG_OF
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/*
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* For new single-chip sensors use <device_name> as compatible string.
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* For old single-chip devices keep <device_name>-magn to maintain
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* compatibility
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*/
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static const struct of_device_id st_magn_of_match[] = {
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{
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.compatible = "st,lis3mdl-magn",
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.data = LIS3MDL_MAGN_DEV_NAME,
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},
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{
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.compatible = "st,lsm303agr-magn",
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.data = LSM303AGR_MAGN_DEV_NAME,
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},
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{}
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};
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MODULE_DEVICE_TABLE(of, st_magn_of_match);
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#else
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#define st_magn_of_match NULL
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#endif
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static int st_magn_spi_probe(struct spi_device *spi)
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{
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struct iio_dev *indio_dev;
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@ -30,6 +52,8 @@ static int st_magn_spi_probe(struct spi_device *spi)
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mdata = iio_priv(indio_dev);
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st_sensors_of_name_probe(&spi->dev, st_magn_of_match,
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spi->modalias, sizeof(spi->modalias));
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st_sensors_spi_configure(indio_dev, spi, mdata);
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err = st_magn_common_probe(indio_dev);
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@ -57,6 +81,7 @@ MODULE_DEVICE_TABLE(spi, st_magn_id_table);
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static struct spi_driver st_magn_driver = {
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.driver = {
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.name = "st-magn-spi",
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.of_match_table = of_match_ptr(st_magn_of_match),
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},
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.probe = st_magn_spi_probe,
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.remove = st_magn_spi_remove,
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