Just some small comments.
On Wed, Apr 01, 2020 at 04:45:37PM +0800, Shengjiu Wang wrote:
> In order to align with new ESARC, we add new property fsl,asrc-format.
> The fsl,asrc-format can replace the fsl,asrc-width, driver
> can accept format from devicetree, don't need to convert it to
> format through width.
>
> Signed-off-by: Shengjiu Wang <shengjiu.wang@xxxxxxx>
> ---
> sound/soc/fsl/fsl_asrc.c | 40 ++++++++++++++++++++++--------------
> sound/soc/fsl/fsl_asrc.h | 4 ++--
> sound/soc/fsl/fsl_asrc_dma.c | 15 +++++++++++---
> 3 files changed, 39 insertions(+), 20 deletions(-)
>
> diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c
> index 4d3e51bfa949..eea19e2b723b 100644
> --- a/sound/soc/fsl/fsl_asrc.c
> +++ b/sound/soc/fsl/fsl_asrc.c
> @@ -1052,16 +1047,31 @@ static int fsl_asrc_probe(struct platform_device *pdev)
> return ret;
> }
>
> - ret = of_property_read_u32(np, "fsl,asrc-width",
> - &asrc->asrc_width);
> + ret = of_property_read_u32(np, "fsl,asrc-format", &asrc->asrc_format);
> if (ret) {
> - dev_err(&pdev->dev, "failed to get output width\n");
> - return ret;
> + ret = of_property_read_u32(np, "fsl,asrc-width", &width);
> + if (ret) {
> + dev_err(&pdev->dev, "failed to get output width\n");
Similar to the comments against sound card driver:
"failed to decide output format"
> + return ret;
> + }
> +
> + switch (width) {
> + case 16:
> + asrc->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
> + break;
> + case 24:
> + asrc->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
> + break;
> + default:
> + dev_warn(&pdev->dev, "unsupported width, switching to 24bit\n");
Should match what the code does after the change:
+ dev_warn(&pdev->dev,
+ "unsupported width, use default S24_LE\n");
> + asrc->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
> + break;
> + }
> }
>
> - if (asrc->asrc_width != 16 && asrc->asrc_width != 24) {
> - dev_warn(&pdev->dev, "unsupported width, switching to 24bit\n");
> - asrc->asrc_width = 24;
> + if (!(FSL_ASRC_FORMATS & (1ULL << asrc->asrc_format))) {
> + dev_warn(&pdev->dev, "unsupported format, switching to S24_LE\n");
Could fit 80 characters:
+ dev_warn(&pdev->dev, "unsupported width, use default S24_LE\n");
> diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c
> index 5fe83aece25b..b15946e03380 100644
> --- a/sound/soc/fsl/fsl_asrc_dma.c
> +++ b/sound/soc/fsl/fsl_asrc_dma.c
> @@ -230,10 +230,19 @@ static int fsl_asrc_dma_hw_params(struct snd_soc_component *component,
> return -EINVAL;
> }
>
> - if (asrc->asrc_width == 16)
> + bits = snd_pcm_format_physical_width(asrc->asrc_format);
Can we just use 'width' to match the function name?
