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// SPDX-License-Identifier: GPL-2.0
/*
* Device Tree for ULCB + Audio Graph 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 = "audio-graph-card";
label = "snd-ulcb";
dais = <&snd_ulcb1 /* (A) CPU0 <-> ak4613 */
&snd_ulcb2 /* (B) CPU1 -> HDMI */
>;
};
};
&ak4613 {
#sound-dai-cells = <0>;
port {
/*
* (A) CPU0 <-> ak4613
*/
ak4613_endpoint: endpoint {
remote-endpoint = <&rsnd_for_ak4613>;
};
};
};
&hdmi0 {
ports {
port@2 {
/*
* (B) CPU1 -> HDMI
*/
dw_hdmi0_snd_in: endpoint {
remote-endpoint = <&rsnd_for_hdmi>;
};
};
};
};
&rcar_sound {
#address-cells = <1>;
#size-cells = <0>;
ports@0 {
#address-cells = <1>;
#size-cells = <0>;
reg = <0>;
snd_ulcb1: port@0 {
/*
* (A) CPU0 <-> ak4613
*/
reg = <0>;
rsnd_for_ak4613: endpoint {
remote-endpoint = <&ak4613_endpoint>;
bitclock-master;
frame-master;
playback = <&ssi0>, <&src0>, <&dvc0>;
capture = <&ssi1>, <&src1>, <&dvc1>;
};
};
snd_ulcb2: port@1 {
/*
* (B) CPU1 -> HDMI
*/
reg = <1>;
rsnd_for_hdmi: endpoint {
remote-endpoint = <&dw_hdmi0_snd_in>;
bitclock-master;
frame-master;
playback = <&ssi2>;
};
};
};
};
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