[alsa-devel] asoc multi-component: CPU DAI name is wrong

Liam Girdwood lrg at slimlogic.co.uk
Fri Jul 23 20:16:23 CEST 2010


On Thu, 2010-07-22 at 16:57 -0500, Timur Tabi wrote:
> Liam,
> 
> I have this in my machine driver:
> 
> machine_data->dai[0].cpu_dai_name = strrchr(np->full_name, '/') + 1;
> printk(KERN_INFO "%s:%u cpu_dai_name=%s\n", __func__, __LINE__,
> machine_data->dai[0].cpu_dai_name);
> ...
> platform_set_drvdata(sound_device, &machine_data->card);
> ret = platform_device_add(sound_device);
> 
> which displays this message:
> 
> mpc8610_hpcd_probe:316 cpu_dai_name=ssi at 16000
> 
> So my machine driver says the CPU DAI name is "ssi at 16000", and my CPU driver
> does the same thing.  However, I put some printks in soc_bind_dai_link, and
> this is what I see:
> 
> soc_bind_dai_link:1136 cpu_dai->name=e0016000.ssi
> dai_link->cpu_dai_name=ssi at 16000
> soc_bind_dai_link:1136 cpu_dai->name=cs4270-hifi
> dai_link->cpu_dai_name=ssi at 16000
> soc_bind_dai_link:1159 codec->name=0-004f
> dai_link->codec_name=cs4270-codec.0-004f
> soc_bind_dai_link:1193 platform->name=e0021180.dma-channel
> dai_link->platform_name=/soc at e0000000/dma at 21300/dma-channel at 0
> soc_bind_dai_link:1193 platform->name=e0021100.dma-channel
> dai_link->platform_name=/soc at e0000000/dma at 21300/dma-channel at 0
> soc_bind_dai_link:1136 cpu_dai->name=e0016000.ssi
> dai_link->cpu_dai_name=ssi at 16000
> soc_bind_dai_link:1136 cpu_dai->name=cs4270-hifi
> dai_link->cpu_dai_name=ssi at 16000
> soc_bind_dai_link:1159 codec->name=0-004f
> dai_link->codec_name=cs4270-codec.0-004f
> soc_bind_dai_link:1193 platform->name=e0021180.dma-channel
> dai_link->platform_name=/soc at e0000000/dma at 21300/dma-channel at 1
> soc_bind_dai_link:1193 platform->name=e0021100.dma-channel
> dai_link->platform_name=/soc at e0000000/dma at 21300/dma-channel at 1
> 
> Where in the world is "e0016000.ssi" coming from?  Why is ASoC ignoring my
> .cpu_dai_name value?
> 

My mistake, I'd missed something in the forward port. I've fixed the DAI
naming problem and you should see your DAI use the correct name.

Give kernel.org about 30 mins to sync before pulling.

Thanks

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



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