[alsa-devel] [PATCH v2 2/6] ASoC: Allow the DAPM routes to be stored in device tree

Mark Brown broonie at opensource.wolfsonmicro.com
Tue Dec 13 05:07:29 CET 2011

On Mon, Dec 12, 2011 at 11:34:13AM -0800, Stephen Warren wrote:
> Mark Brown wrote at Saturday, December 10, 2011 5:49 AM:

> > It's starting to get an idiomatic way of representing the external
> > nodes, HDA is probably a good source of inspiration :)  We do need to
> > have a think about the jacks, though - simple ones are fine but
> > multifinction is more fun.

> I just wanted to confirm that you're talking about multiple audio
> functions here (e.g. mic+headphones), rather than mixing audio with
> other features (e.g. s-video + line out). I don't think the latter has


> any kind of representation in the kernel right now though? That said,

Depends; if you listen to Lennart and Kay it's totally there already and
there's nothing to worry about.

> it might be a good idea to represent jacks outside any audio complex
> DT node, so that they could host functionality of different types if
> the HW does so...

Clearly, and even audio jacks have non-audio functionality like buttons.

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