[alsa-devel] [PATCH v3] ASoC: dapm: Add new widget type snd_soc_dapm_dsp_component

[Mark Brown]

On Fri, Jun 16, 2017 at 03:06:38PM +0100, Liam Girdwood wrote:
> On Fri, 2017-06-16 at 13:26 +0100, Liam Girdwood wrote:

> > Ok, I can redo and use specific types, but there still is a problem of
> > how do we configure a pipeline (a collection of widgets, where several
> > pipelines can make a path from PCM to DAI). This configuration data is
> > not hw/sw params type data, but more DSP scheduling type data. My
> > original thought was the pipeline widget, as there is nothing else that
> > cleanly fits into the ABI and that the pipeline scheduling data is DAPM
> > widget/graph related anyway.

> > Another alternative is extending the topology ABI and introduce a
> > pipeline object that would be ignore by the core and just used by
> > certain drivers and firmwares ?

> I think I'm tending towards having a scheduler widget now (instead of a
> pipeline widget) and that would be a valid part of the graph and also
> discoverable via debugfs etc.

Ah, I see what you're going for with that now I think.  So something
that looks in DAPM terms a bit like a supply widget (in that it's not
really part of the path itself but provides things the path needs in
order to function)?  I think that makes sense to me now too.
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