On 09/28/13 10:31, Lars-Peter Clausen wrote:
> Move the complexity of calculating the fixed point scale to the core.
>
> Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
Applied
> ---
> 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;
> }
>
--
To unsubscribe from this list: send the line "unsubscribe linux-iio" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
