diff options
Diffstat (limited to 'drivers/iio/magnetometer/bmc150_magn.c')
-rw-r--r-- | drivers/iio/magnetometer/bmc150_magn.c | 31 |
1 files changed, 22 insertions, 9 deletions
diff --git a/drivers/iio/magnetometer/bmc150_magn.c b/drivers/iio/magnetometer/bmc150_magn.c index d91cb845e3d6..d4de16750b10 100644 --- a/drivers/iio/magnetometer/bmc150_magn.c +++ b/drivers/iio/magnetometer/bmc150_magn.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Bosch BMC150 three-axis magnetic field sensor driver * @@ -6,15 +7,6 @@ * This code is based on bmm050_api.c authored by contact@bosch.sensortec.com: * * (C) Copyright 2011~2014 Bosch Sensortec GmbH All Rights Reserved - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. */ #include <linux/module.h> @@ -143,6 +135,7 @@ struct bmc150_magn_data { */ struct mutex mutex; struct regmap *regmap; + struct iio_mount_matrix orientation; /* 4 x 32 bits for x, y z, 4 bytes align, 64 bits timestamp */ s32 buffer[6]; struct iio_trigger *dready_trig; @@ -612,6 +605,20 @@ static ssize_t bmc150_magn_show_samp_freq_avail(struct device *dev, return len; } +static const struct iio_mount_matrix * +bmc150_magn_get_mount_matrix(const struct iio_dev *indio_dev, + const struct iio_chan_spec *chan) +{ + struct bmc150_magn_data *data = iio_priv(indio_dev); + + return &data->orientation; +} + +static const struct iio_chan_spec_ext_info bmc150_magn_ext_info[] = { + IIO_MOUNT_MATRIX(IIO_SHARED_BY_DIR, bmc150_magn_get_mount_matrix), + { } +}; + static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(bmc150_magn_show_samp_freq_avail); static struct attribute *bmc150_magn_attributes[] = { @@ -638,6 +645,7 @@ static const struct attribute_group bmc150_magn_attrs_group = { .storagebits = 32, \ .endianness = IIO_LE \ }, \ + .ext_info = bmc150_magn_ext_info, \ } static const struct iio_chan_spec bmc150_magn_channels[] = { @@ -861,6 +869,11 @@ int bmc150_magn_probe(struct device *dev, struct regmap *regmap, data->irq = irq; data->dev = dev; + ret = iio_read_mount_matrix(dev, "mount-matrix", + &data->orientation); + if (ret) + return ret; + if (!name && ACPI_HANDLE(dev)) name = bmc150_magn_match_acpi_device(dev); |