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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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a29c328365
This is a preparatory change required for the addition of temperature sensing front ends. Signed-off-by: Liam Beguin <liambeguin@gmail.com> Reviewed-by: Peter Rosin <peda@axentia.se> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220213025739.2561834-4-liambeguin@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
37 lines
833 B
C
37 lines
833 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2018 Axentia Technologies AB
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*/
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#ifndef __IIO_RESCALE_H__
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#define __IIO_RESCALE_H__
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#include <linux/types.h>
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#include <linux/iio/iio.h>
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struct device;
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struct rescale;
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struct rescale_cfg {
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enum iio_chan_type type;
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int (*props)(struct device *dev, struct rescale *rescale);
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};
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struct rescale {
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const struct rescale_cfg *cfg;
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struct iio_channel *source;
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struct iio_chan_spec chan;
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struct iio_chan_spec_ext_info *ext_info;
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bool chan_processed;
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s32 numerator;
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s32 denominator;
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s32 offset;
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};
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int rescale_process_scale(struct rescale *rescale, int scale_type,
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int *val, int *val2);
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int rescale_process_offset(struct rescale *rescale, int scale_type,
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int scale, int scale2, int schan_off,
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int *val, int *val2);
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#endif /* __IIO_RESCALE_H__ */
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