Re: [RFC PATCH 1/3] ALSA:hda: Simplify and clear calculating SDxFMT

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On Thu, 05 Sep 2019 07:32:59 +0200,
Pawel Harlozinski wrote:
> 
> Set SDxFMT based only on given format, due to maxbps not always being set.
> Split cases for formats 20,24,32 bits.
> For format SNDRV_PCM_FORMAT_FLOAT_LE width is equal 32 so it will end up
> with same mask.

This function corresponds to snd_hdac_query_supported_pcm(), so this
patch breaks.

Basically the cases of 20 and 24 are superfluous and can be dropped.
It's there just to be sure.


Takashi

> 
> Signed-off-by: Pawel Harlozinski <pawel.harlozinski@xxxxxxxxxxxxxxx>
> ---
>  sound/hda/hdac_device.c | 11 +++++------
>  1 file changed, 5 insertions(+), 6 deletions(-)
> 
> diff --git a/sound/hda/hdac_device.c b/sound/hda/hdac_device.c
> index b26cc93e7e10..add758e11b85 100644
> --- a/sound/hda/hdac_device.c
> +++ b/sound/hda/hdac_device.c
> @@ -759,14 +759,13 @@ unsigned int snd_hdac_calc_stream_format(unsigned int rate,
>  		val |= AC_FMT_BITS_16;
>  		break;
>  	case 20:
> +		val |= AC_FMT_BITS_20;
> +		break;
>  	case 24:
> +		val |= AC_FMT_BITS_24;
> +		break;
>  	case 32:
> -		if (maxbps >= 32 || format == SNDRV_PCM_FORMAT_FLOAT_LE)
> -			val |= AC_FMT_BITS_32;
> -		else if (maxbps >= 24)
> -			val |= AC_FMT_BITS_24;
> -		else
> -			val |= AC_FMT_BITS_20;
> +		val |= AC_FMT_BITS_32;
>  		break;
>  	default:
>  		return 0;
> -- 
> 2.17.1
> 
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