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Commit 9324131b authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Jonathan Cameron
Browse files

staging:iio:ad7606: Report scale as fractional value 



Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent d6570b33

drivers/staging/iio/adc/ad7606_core.c

+3 −6
Original line number Diff line number Diff line
@@ -85,7 +85,6 @@ static int ad7606_read_raw(struct iio_dev *indio_dev, 
{

	int ret;

	struct ad7606_state *st = iio_priv(indio_dev);

	unsigned int scale_uv;



	switch (m) {

	case IIO_CHAN_INFO_RAW:
@@ -101,11 +100,9 @@ static int ad7606_read_raw(struct iio_dev *indio_dev, 
		*val = (short) ret;

		return IIO_VAL_INT;

	case IIO_CHAN_INFO_SCALE:

		scale_uv = (st->range * 1000 * 2)

			>> st->chip_info->channels[0].scan_type.realbits;

		*val =  scale_uv / 1000;

		*val2 = (scale_uv % 1000) * 1000;

		return IIO_VAL_INT_PLUS_MICRO;

		*val = st->range * 2;

		*val2 = st->chip_info->channels[0].scan_type.realbits;

		return IIO_VAL_FRACTIONAL_LOG2;

	}

	return -EINVAL;

}