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 to the togreg branch of iio.git
Thanks,
> ---
> drivers/iio/dac/ad5624r_spi.c | 9 +++------
> 1 file changed, 3 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/iio/dac/ad5624r_spi.c b/drivers/iio/dac/ad5624r_spi.c
> index dbb1289..774dd96 100644
> --- a/drivers/iio/dac/ad5624r_spi.c
> +++ b/drivers/iio/dac/ad5624r_spi.c
> @@ -50,15 +50,12 @@ static int ad5624r_read_raw(struct iio_dev *indio_dev,
> long m)
> {
> struct ad5624r_state *st = iio_priv(indio_dev);
> - unsigned long scale_uv;
>
> switch (m) {
> 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;
> }
>
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