[alsa-devel] [RFC] ASoC: soc-pcm: Add support for unidirectional dai links

[Mark Brown]

On Thu, Aug 29, 2013 at 01:54:59AM -0300, Fabio Estevam wrote:

> @@ -105,11 +105,13 @@ static struct snd_soc_dai_link mxs_sgtl5000_dai[] = {
>  		.stream_name	= "HiFi Playback",
>  		.codec_dai_name	= "sgtl5000",
>  		.ops		= &mxs_sgtl5000_hifi_ops,
> +		.playback_only	= true,
>  	}, {
>  		.name		= "HiFi Rx",
>  		.stream_name	= "HiFi Capture",
>  		.codec_dai_name	= "sgtl5000",
>  		.ops		= &mxs_sgtl5000_hifi_ops,
> +		.capture_only	= true,
>  	},

This doesn't make much sense to me - it should be possible to tell from
the capabilities of the two DAIs on the link if they support both
playback and capture.  Or has the board wired up two bidirectional DAIs
on each link for some reason?
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