Hi Sameer > >> /-----> codec1 endpoint > >> / > >> CPU endpoint \ > >> \-----> codec2 endpoint > > It sounds "Single CPU - Mult Codec" connection, and if my understanding > > was correct, current ASoC is not supporting it so far. > > Yes, this is a typical TDM use case. > __soc_pcm_hw_params() call in soc-pcm.c loops over all CODECs for a > given rtd. So is there something else you are referring to which makes > ASoC core doesn't support it? Oops sorry, I was confused. asymmetry Multi CPU/Codec is supported on ASoC / Card2 on for-6.8 branch. > Also the binding properties of "audio-graph-card2" seem to be different > from "audio-graph-card". I am looking at a simpler extension of existing > bindings for Tegra audio without having to re-write the whole bindings. > If "remote-endpoint" can take phandle array it would be simpler from DT > point of view. Yes, "card2" and "card" are similar but different. I'm not DT-man, but I think remote-endpoint phandle array is not allowed ? If my understanding was correct, you need to use multi endpoint in such case instead of phandle array. CPU port { cpu_endpoint0: endpoint@0 { remote-endpoint = <&codec1_endpoint>; }; cpu_endpoint1: endpoint@1 { remote-endpoint = <&codec2_endpoint>; }; }; Codec1 port { codec1_endpoint: endpoint { remote-endpoint = <&cpu_endpoint0>; }; }; Codec2 port { codec2_endpoint: endpoint { remote-endpoint = <&cpu_endpoint1>; }; }; Thank you for your help !! Best regards --- Renesas Electronics Ph.D. Kuninori Morimoto