Messages in this thread | | | Date | Wed, 28 Mar 2018 10:29:10 +0800 | From | Mark Brown <> | Subject | Re: omap4-droid4: voice call support was Re: [PATCHv5,5/5] ARM: dts: omap4-droid4: add soundcard |
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On Wed, Mar 28, 2018 at 12:22:37AM +0200, Sebastian Reichel wrote: > On Tue, Mar 27, 2018 at 08:14:41PM +0800, Mark Brown wrote:
> > No, this is exactly the sort of use case with multiple DAIs that the > > graph card is intended to enable over the old simple-card.
> +----------+ +-------------+ > | OMAP4 | | CPCAP | > | | | | > | [McBSP2] | <-----> | [HiFi DAI] | > | | | | > | [McBSP3] | <--+--> | [Voice DAI] | > | | | | | > +----------+ | +-------------+ > | > +----------+ | +-------------+ > | MDM6600 | | | WL1285 | > | | | | | > | [DAI] | <--+--> | [DAI] | > | | | | > +----------+ +-------------+
> Legend: > OMAP4 = SoC running Linux > CPCAP = Audio codec > MDM6600 = Baseband > WL1285 = Bluetooth
> Re-reading the audio-graph-card binding document I still don't see > how the network (OMAP.McBSP3, CPCAP.Voice, MDM6600, WL1285) is > supposed to look like. It seems to expect point-to-point DAI > connections.
Ugh, a TDM mux? That's really unusual and not particularly supported yet, you'd need to extend the graph card to do it. It's where things should end up for a generic card though. [unhandled content-type:application/pgp-signature] | |