[alsa-devel] omap4-droid4: voice call support was Re: [PATCHv5, 5/5] ARM: dts: omap4-droid4: add soundcard

[Mark Brown]

On Wed, Mar 28, 2018 at 04:02:19PM +0200, Sebastian Reichel wrote:

> In case of the last two variants, the bus clock is provided by
> CPCAP, so it needs to be enabled for any audio stream. I suppose
> the codec <-> codec as part of TDM is out of scope for the graph
> card and we need a Droid 4 specific card driver?

It's definitely pushing it towards being more useful to consider at
least in the short term, basically nobody ever did these TDM muxes since
usually you end up needing something more than just straight digital
data muxing (mixing for example) so things usually get routed through a
chip that can do more with the data.
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