[alsa-devel] [RFC 02/11] ASoC: Add dai_ops to set the stream tag.

[Subhransu S. Prusty]

On Mon, Jun 27, 2016 at 06:30:09PM +0100, Mark Brown wrote:
> On Mon, Jun 27, 2016 at 09:17:55AM +0530, Subhransu S. Prusty wrote:
> 
> > Stream tag is unique stream identifier for each HDA stream. It's
> > programmed in both host and codec to identify link the stream is
> > transported.  The platform driver allocates the stream and calls
> > this ops to program the stream tag in the codec dai.
> 
> This seems incredibly HDMI specific...  what are these tags, can we
> represent this as TDM (which seems to be what this is really)?

Hi Mark,

This is HDA specific and the tag is to support use of same DMA channel by
both host and codec.

Regards,
Subhransu

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