// SPDX-License-Identifier: GPL-2.0 /* * Device Tree for ULCB + Simple Audio Card (MIXer) * * Copyright (C) 2022 Renesas Electronics Corp. */ /* * Note: * The HDMI output is ignored due to the limited number of subdevices * * (A) CPU0 (2ch) <----> (2ch) (X) ak4613 (MIX-0) * (B) CPU1 (2ch) --/ (MIX-1) * * (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 { #address-cells = <1>; #size-cells = <0>; compatible = "simple-scu-audio-card"; label = "snd-ulcb-mix"; simple-audio-card,prefix = "ak4613"; simple-audio-card,routing = "ak4613 Playback", "DAI0 Playback", "ak4613 Playback", "DAI1 Playback", "DAI0 Capture", "ak4613 Capture"; simple-audio-card,dai-link@0 { #address-cells = <1>; #size-cells = <0>; reg = <0>; convert-rate = <48000>; /* * (A) CPU0 */ cpu@0 { reg = <0>; bitclock-master; frame-master; sound-dai = <&rcar_sound 0>; }; /* * (B) CPU1 */ cpu@1 { reg = <1>; sound-dai = <&rcar_sound 1>; }; /* * (X) ak4613 */ codec { prefix = "ak4613"; sound-dai = <&ak4613>; }; }; }; }; &ak4613 { /* * (X) ak4613 */ #sound-dai-cells = <0>; }; &rcar_sound { #address-cells = <1>; #size-cells = <0>; #sound-dai-cells = <1>; rcar_sound,dai@0 { reg = <0>; /* * (A) CPU0 */ dai0 { playback = <&src1 &ctu02 &mix0 &dvc0 &ssi0>; capture = <&ssi1 &src0 &dvc1>; }; /* * (B) CPU1 */ dai1 { playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>; }; }; };