[alsa-devel] [PATCH 2/3] ASoC: dmaengine: Support custom channel names
broonie at kernel.org
Wed Oct 23 13:30:28 CEST 2013
On Tue, Oct 22, 2013 at 01:45:17PM +0200, Lars-Peter Clausen wrote:
> On 10/19/2013 06:43 PM, Mark Brown wrote:
> > Some devices have more than just simple TX and RX DMA channels, for example
> > modern Samsung I2S IPs support a secondary transmit DMA stream which is
> > mixed into the primary stream during playback. Allow such devices to
> > specify the names of the channels to be requested in their dma_data.
> As shortly discussed yesterday, I think the general idea is fine. But it
> might be better to have the names available at PCM creation time, since this
> allows us to e.g. do proper probe referral and will also have the code take
> the same path in the DT case, no matter if it uses the default names or not.
I agree, but I'm thinking that the way to do this is to get the entire
struct provided earlier so that the compat drivers get to use this stuff
too. Is there any great reason not to do that?
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