[alsa-devel] [PATCH 2/2] ASoC: omap: Stop DMA re enabling in self linkage mode

Jarkko Nikula jhnikula at gmail.com
Tue Dec 7 17:00:42 CET 2010

On Tue, 7 Dec 2010 16:38:35 +0200
Peter Ujfalusi <peter.ujfalusi at nokia.com> wrote:

> If this could happen, than IMHO it has to be handled by the omap_stop_dma, since 
> other drivers could be hit by the same problem (there might be ERRATA for it 
> already for OMAP4).
I agree with Peter that all DMA stopping related workarounds should be
in omap_stop_dma. I'd expect that DMA is stopped when returning
from there. Commit 9da65a9 was dealing with similar issue so probably
this looping should be implemented somewhere around those lines reading
& clearing the _CCR_EN bit?


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