diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2013-09-28 13:31:00 +0400 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2013-10-01 19:19:12 +0400 |
| commit | d88c89db9a7550c2ed6551f73b6702faee190434 (patch) | |
| tree | 77c663ba5cd6db29210efdee55944471bf8b4be7 /drivers/iio/adc/ad7476.c | |
| parent | 2ebc39c0bbb30d6f06c3fe65c458e546db275f6d (diff) | |
| download | linux-d88c89db9a7550c2ed6551f73b6702faee190434.tar.xz | |
iio:ad7476: Report scale as fractional value
Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/adc/ad7476.c')
| -rw-r--r-- | drivers/iio/adc/ad7476.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c index 8d808b9de909..d141d452c3d1 100644 --- a/drivers/iio/adc/ad7476.c +++ b/drivers/iio/adc/ad7476.c @@ -127,10 +127,9 @@ static int ad7476_read_raw(struct iio_dev *indio_dev, } else { scale_uv = st->chip_info->int_vref_uv; } - scale_uv >>= chan->scan_type.realbits; - *val = scale_uv / 1000; - *val2 = (scale_uv % 1000) * 1000; - return IIO_VAL_INT_PLUS_MICRO; + *val = scale_uv / 1000; + *val2 = chan->scan_type.realbits; + return IIO_VAL_FRACTIONAL_LOG2; } return -EINVAL; } |