On Thu, Sep 19, 2019 at 08:11:40PM +0800, Shengjiu Wang wrote:
> The ASRC support 24bit/16bit/8bit input width, which is
> data width, not slot width.
>
> For the S20_3LE format, the data with is 20bit, slot width
> is 24bit, if we set ASRMCR1n.IWD to be 24bits, the result
> is the volume is lower than expected, it likes 24bit data
> right shift 4 bits
>
> So replace S20_3LE with S24_3LE in supported list and add S8
> format in TX supported list
>
> Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx>
Acked-by: Nicolin Chen <nicoleotsuka@xxxxxxxxx>
> ---
> sound/soc/fsl/fsl_asrc.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c
> index 4d3804a1ea55..584badf956d2 100644
> --- a/sound/soc/fsl/fsl_asrc.c
> +++ b/sound/soc/fsl/fsl_asrc.c
> @@ -624,7 +624,7 @@ static int fsl_asrc_dai_probe(struct snd_soc_dai *dai)
>
> #define FSL_ASRC_FORMATS (SNDRV_PCM_FMTBIT_S24_LE | \
> SNDRV_PCM_FMTBIT_S16_LE | \
> - SNDRV_PCM_FMTBIT_S20_3LE)
> + SNDRV_PCM_FMTBIT_S24_3LE)
>
> static struct snd_soc_dai_driver fsl_asrc_dai = {
> .probe = fsl_asrc_dai_probe,
> @@ -635,7 +635,8 @@ static struct snd_soc_dai_driver fsl_asrc_dai = {
> .rate_min = 5512,
> .rate_max = 192000,
> .rates = SNDRV_PCM_RATE_KNOT,
> - .formats = FSL_ASRC_FORMATS,
> + .formats = FSL_ASRC_FORMATS |
> + SNDRV_PCM_FMTBIT_S8,
> },
> .capture = {
> .stream_name = "ASRC-Capture",
> --
> 2.21.0
>
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