diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2013-06-14 16:58:00 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2013-06-14 21:50:51 +0100 |
| commit | 73a4445f302f6bf54940d36659bb008d018cef98 (patch) | |
| tree | be121d41294a9a6ab16ae46ea0e46ab618782a97 | |
| parent | ab52a9580fb0f32a033cca8761616ed16708fc03 (diff) | |
staging:iio:ad7291: Use IIO_VAL_FRACTIONAL_LOG2
This is a bit more straight forward and also allows better precession when using
the an in-kernel consumer.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
| -rw-r--r-- | drivers/staging/iio/adc/ad7291.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c index d088c662d5cd..a3a3a2f27584 100644 --- a/drivers/staging/iio/adc/ad7291.c +++ b/drivers/staging/iio/adc/ad7291.c @@ -456,7 +456,6 @@ static int ad7291_read_raw(struct iio_dev *indio_dev, { int ret; struct ad7291_chip_info *chip = iio_priv(indio_dev); - unsigned int scale_uv; u16 regval; s16 signval; @@ -513,10 +512,9 @@ static int ad7291_read_raw(struct iio_dev *indio_dev, case IIO_CHAN_INFO_SCALE: switch (chan->type) { case IIO_VOLTAGE: - scale_uv = (chip->int_vref_mv * 1000) >> AD7291_BITS; - *val = scale_uv / 1000; - *val2 = (scale_uv % 1000) * 1000; - return IIO_VAL_INT_PLUS_MICRO; + *val = chip->int_vref_mv; + *val2 = AD7291_BITS; + return IIO_VAL_FRACTIONAL_LOG2; case IIO_TEMP: /* * One LSB of the ADC corresponds to 0.25 deg C. |