// SPDX-License-Identifier: GPL-2.0 /* * Device Tree for ULCB + Kingfisher + Audio Graph Card * * Copyright (C) 2022 Renesas Electronics Corp. */ /* * (A) CPU0 <----> ak4613 * (B) CPU1 ----> HDMI * (C) CPU2 ----> PCM3168A-p (8ch) * (D) CPU3 <---- PCM3168A-c (6ch) * * (A) aplay -D plughw:0,0 xxx.wav * (B) aplay -D plughw:0,1 xxx.wav * (C) aplay -D plughw:0,2 xxx.wav * * (A) arecord -D plughw:0,0 xxx.wav * (D) arecord -D plughw:0,3 xxx.wav */ &sound_card { dais = <&rsnd_port0 /* (A) CPU0 <-> ak4613 */ &rsnd_port1 /* (B) CPU1 -> HDMI */ &rsnd_port2 /* (C) CPU2 -> PCM3168A-p */ &rsnd_port3 /* (D) CPU3 <- PCM3168A-c */ >; }; &pcm3168a { ports { #address-cells = <1>; #size-cells = <0>; mclk-fs = <512>; /* * (C) CPU2 -> PCM3168A-p */ port@0 { reg = <0>; pcm3168a_endpoint_p: endpoint { remote-endpoint = <&rsnd_for_pcm3168a_play>; clocks = <&clksndsel>; }; }; /* * (D) CPU3 <- PCM3168A-c */ port@1 { reg = <1>; pcm3168a_endpoint_c: endpoint { remote-endpoint = <&rsnd_for_pcm3168a_capture>; clocks = <&clksndsel>; }; }; }; }; &rcar_sound { ports { /* rsnd_port0/1 are defined in ulcb.dtsi */ /* * (C) CPU2 -> PCM3168A-p */ rsnd_port2: port@2 { reg = <2>; rsnd_for_pcm3168a_play: endpoint { remote-endpoint = <&pcm3168a_endpoint_p>; bitclock-master; frame-master; dai-tdm-slot-num = <8>; playback = <&ssi3>; }; }; /* * (D) CPU3 <- PCM3168A-c */ rsnd_port3: port@3 { reg = <3>; rsnd_for_pcm3168a_capture: endpoint { remote-endpoint = <&pcm3168a_endpoint_c>; bitclock-master; frame-master; dai-tdm-slot-num = <6>; capture = <&ssi4>; }; }; }; };