[alsa-devel] asoc multi-component: almost there!

[Liam Girdwood]

On Mon, 2010-07-26 at 17:37 -0500, Timur Tabi wrote:
> Liam,
> 
> I almost got it working.  I can generate names that match, so it finds it:
> 
> soc_bind_dai_link:1136 cpu_dai->name=e0016000.ssi,
> dai_link->cpu_dai_name=e0016000.ssi
> soc_bind_dai_link:1159 codec->name=cs4270-codec.0-004f,
> dai_link->codec_name=cs4270-codec.0-004f
> soc_bind_dai_link:1169 codec_dai->name=e0016000.ssi,
> dai_link->codec_dai_name=cs4270-hifi
> soc_bind_dai_link:1169 codec_dai->name=cs4270-hifi,
> dai_link->codec_dai_name=cs4270-hifi
> soc_bind_dai_link:1194 platform->name=e0021180.dma-channel,
> dai_link->platform_name=e0021100.dma-channel
> soc_bind_dai_link:1194 platform->name=e0021100.dma-channel,
> dai_link->platform_name=e0021100.dma-channel
> soc_bind_dai_link:1136 cpu_dai->name=e0016000.ssi,
> dai_link->cpu_dai_name=e0016000.ssi
> soc_bind_dai_link:1159 codec->name=cs4270-codec.0-004f,
> dai_link->codec_name=cs4270-codec.0-004f
> soc_bind_dai_link:1169 codec_dai->name=e0016000.ssi,
> dai_link->codec_dai_name=cs4270-hifi
> soc_bind_dai_link:1169 codec_dai->name=cs4270-hifi,
> dai_link->codec_dai_name=cs4270-hifi
> soc_bind_dai_link:1194 platform->name=e0021180.dma-channel,
> dai_link->platform_name=e0021180.dma-channel
> asoc: cs4270-hifi <-> e0016000.ssi mapping ok
> 
> but then I get this:
> 
> sysfs: cannot create duplicate filename '/devices/platform/soc-audio/cs4270'
> 
> I'm registering two DAIs -- one for playback, one for capture, but I'm
> using the same name for the codec DAI.  How do I resolve this?
> 

Ah ok, I thought you meant two CODEC DAIs earlier rather than two
machine DAI links. 

Each machine DAI link now has a sysfs entry so we can inspect its
configuration/status now. Hence each machine DAI link must be named
differently. You could have a "cs4270 playback" and "cs4270 capture" DAI
links now.

Thanks

Liam
-- 
Freelance Developer, SlimLogic Ltd
ASoC and Voltage Regulator Maintainer.
http://www.slimlogic.co.uk