// SPDX-License-Identifier: GPL-2.0 /* * Device Tree for ULCB + Simple Audio Card * * Copyright (C) 2022 Renesas Electronics Corp. */ /* * (A) CPU0 <----> ak4613 * (B) CPU1 ----> HDMI * * (A) aplay -D plughw:0,0 xxx.wav * (B) aplay -D plughw:0,1 xxx.wav * * (A) arecord -D plughw:0,0 xxx.wav */ / { sound_card: sound { compatible = "simple-audio-card"; label = "snd-ulcb"; #address-cells = <1>; #size-cells = <0>; /* * (A) CPU0 <-> ak4613 */ simple-audio-card,dai-link@0 { reg = <0>; cpu { bitclock-master; frame-master; sound-dai = <&rcar_sound 0>; }; codec { sound-dai = <&ak4613>; }; }; /* * (B) CPU1 -> HDMI */ simple-audio-card,dai-link@1 { reg = <1>; cpu { bitclock-master; frame-master; sound-dai = <&rcar_sound 1>; }; codec { sound-dai = <&hdmi0>; }; }; }; }; &ak4613 { /* * (A) CPU0 <-> ak4613 */ #sound-dai-cells = <0>; }; &hdmi0 { /* * (B) CPU1 -> HDMI */ #sound-dai-cells = <0>; }; &rcar_sound { #address-cells = <1>; #size-cells = <0>; #sound-dai-cells = <1>; rcar_sound,dai@0 { reg = <0>; /* * (A) CPU0 <-> ak4613 */ dai0 { playback = <&ssi0 &src0 &dvc0>; capture = <&ssi1 &src1 &dvc1>; }; /* * (B) CPU1 -> HDMI */ dai1 { playback = <&ssi2>; }; }; };