[alsa-devel] [PATCH 2/2] ASoC: samsung: Use ASoC dmaengine code where possible

Padma Venkat padma.kvr at gmail.com
Tue Nov 26 11:48:41 CET 2013

Hi Mark,

On Tue, Nov 26, 2013 at 3:53 PM, Mark Brown <broonie at kernel.org> wrote:
> On Tue, Nov 26, 2013 at 10:55:17AM +0530, Padma Venkat wrote:
>> I tested this patch set on smdk5420 i2s. During playback audio playing
>> fast and there is underrun error like below.
>> underrun!!! (at least 0.061 ms long)
>> underrun!!! (at least 0.043 ms long)
> This sounds like it's setting the transfer width incorrectly, though I
> can't immediately see how that's changed unless the DMA driver is not
> working correctly.  What exactly did you do to test?

I tried this on linux-samsung tree by applying all the patches from
you and Lars.
I initialised the dma_data for secondary dai as there is a crash with out that.
Then I used aplay after running the mixer settings.
./aplay /mars/share/sounds/alsa/Front_Center.wav


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