Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
---
drivers/staging/iio/adc/ad799x_core.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
index 3f5142b..eb6a690 100644
--- a/drivers/staging/iio/adc/ad799x_core.c
+++ b/drivers/staging/iio/adc/ad799x_core.c
@@ -163,7 +163,6 @@ static int ad799x_read_raw(struct iio_dev *indio_dev,
{
int ret;
struct ad799x_state *st = iio_priv(indio_dev);
- unsigned int scale_uv;
switch (m) {
case IIO_CHAN_INFO_RAW:
@@ -180,10 +179,9 @@ static int ad799x_read_raw(struct iio_dev *indio_dev,
RES_MASK(chan->scan_type.realbits);
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
- scale_uv = (st->int_vref_mv * 1000) >> chan->scan_type.realbits;
- *val = scale_uv / 1000;
- *val2 = (scale_uv % 1000) * 1000;
- return IIO_VAL_INT_PLUS_MICRO;
+ *val = st->int_vref_mv;
+ *val2 = chan->scan_type.realbits;
+ return IIO_VAL_FRACTIONAL_LOG2;
}
return -EINVAL;
}
--
1.8.0
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