[PATCH v3 09/12] ASoC: dmaengine_pcm: add snd_dmaengine_generic_pcm_open()

[Mark Brown]

On Thu, Mar 07, 2013 at 09:18:04AM +0000, Russell King - ARM Linux wrote:
> On Thu, Mar 07, 2013 at 10:33:19AM +0800, Mark Brown wrote:

> > Could you go into more detail here please?  Looking at the code I'm not
> > seeing any allocations done by the library code at all, the allocations
> > are all done by the individual platform DMA drivers so I don't see
> > anything stopping them doing what they need.

> I don't know what else you require apart from the description above.  Isn't
> it rather obvious that you can't preallocate the ALSA buffer against the
> DMA engine device if you can only obtain the DMA engine device in the open
> function?

The bit I'm missing is why this is particularly hard to change, it
doesn't seem like a massive refactoring and there's not many users.
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