From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark Brown <broonie@kernel.org>
Subject: Re: [PATCH 3/4 v7] ASoC: dwc: Add PIO PCM extension
Date: Wed, 25 May 2016 11:18:01 +0100
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To: Jose Abreu <Jose.Abreu@synopsys.com>
Cc: Rob Herring <robh@kernel.org>, alsa-devel@alsa-project.org, Liam Girdwood <lgirdwood@gmail.com>, linux-kernel@vger.kernel.org, Alexey Brodkin <Alexey.Brodkin@synopsys.com>, Takashi Iwai <tiwai@suse.com>, devicetree@vger.kernel.org, Carlos Palminha <CARLOS.PALMINHA@synopsys.com>, linux-snps-arc@lists.infradead.org
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On Wed, May 25, 2016 at 11:11:47AM +0100, Jose Abreu wrote:

> I think I will take the second option. Something like this:
> "
>     ret = snd_dmaengine_pcm_register(...)
>     if (ret == -EPROBE_DEFER)
>         return ret;
>     else
>         pio_register(...);
> "?

Sure.  You should print a diagnostic if you fail to get the DMA, for any
real system it's going to be a bug.

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