Re: [alsa-devel] [PATCH 0/2] Graph fixes for using multiple endpoints per port

* Kuninori Morimoto kuninori.morimoto.gx@renesas.com [181211 05:30]:

Hi Tony, again

...

...

mcbsp3_port: port {

• cpu_dai3: endpoint {
  

• cpu_dai3: endpoint@0 {
  dai-format = "dsp_a";
  frame-master = <&cpcap_audio_codec1>;
  bitclock-master = <&cpcap_audio_codec1>;
  remote-endpoint = <&cpcap_audio_codec1>;
  

  };

• cpu_dai_mdm: endpoint@1 {
  

• 	dai-format = "dsp_a";
  

• 	frame-master = <&cpcap_audio_codec1>;
  

• 	bitclock-master = <&cpcap_audio_codec1>;
  

• 	remote-endpoint = <&mot_mdm6600_audio_codec0>;
  

• };
  

audio-graph-scu-card and my posting merged audio-graph-card are assuming multi-endpoint will be used for DPCM purpose.

But, above endpoint connection seems you want to is not DPCM (?), I'm not sure.

Yes DPCM should work nicely here :)

So to recap, Sebastian already added the cpcap codec a while back, please see arch/arm/boot/dts/omap4-droid4-xt894.dts for the soundcard node. Then see the link below for an earlier email describing how the various components are wired for TDM [0].

Hope that clarifies things a bit more,

Tony

[0] https://lkml.org/lkml/2018/3/28/405