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SubjectRe: [PATCH 7/9] dmaengine: Move slave caps to dma_device
On Wed, Oct 01, 2014 at 10:27:05AM +0200, Maxime Ripard wrote:
> On Sat, Sep 27, 2014 at 10:28:47AM +0100, Russell King - ARM Linux wrote:
> > The only way to do this is to either have a flag day, fixing all drivers
> > at once (which isn't going to happen) or leave the caps code as-is, and
> > provide a library function which drivers can hook into the caps callback
> > which retrieves the information from dma_device.
> >
> > That way, DMA engine drivers which are using the new method can just
> > install the new function, and those which haven't been updated with
> > capabilities can carry on as they are, and are detectable to drivers.
>
> Which is pretty much the current behaviour, isn't it?

Yes, because the ASoC code has obviously already thought about this and
solved the lack-of-caps-function problem in a way that permits existing
solutions to continue working.

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