Move the complexity of calculating the fixed point scale to the core.
Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
---
drivers/iio/dac/ad5446.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c
index 6dcb6d9..cb72f01 100644
--- a/drivers/iio/dac/ad5446.c
+++ b/drivers/iio/dac/ad5446.c
@@ -163,18 +163,15 @@ static int ad5446_read_raw(struct iio_dev *indio_dev,
long m)
{
struct ad5446_state *st = iio_priv(indio_dev);
- unsigned long scale_uv;
switch (m) {
case IIO_CHAN_INFO_RAW:
*val = st->cached_val;
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
- scale_uv = (st->vref_mv * 1000) >> chan->scan_type.realbits;
- *val = scale_uv / 1000;
- *val2 = (scale_uv % 1000) * 1000;
- return IIO_VAL_INT_PLUS_MICRO;
-
+ *val = st->vref_mv;
+ *val2 = chan->scan_type.realbits;
+ return IIO_VAL_FRACTIONAL_LOG2;
}
return -EINVAL;
}
--
1.8.0
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