diff options
Diffstat (limited to 'dts/src/arm64/renesas/ulcb-audio-graph-card.dtsi')
| -rw-r--r-- | dts/src/arm64/renesas/ulcb-audio-graph-card.dtsi | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/dts/src/arm64/renesas/ulcb-audio-graph-card.dtsi b/dts/src/arm64/renesas/ulcb-audio-graph-card.dtsi new file mode 100644 index 0000000000..3f1df6ee17 --- /dev/null +++ b/dts/src/arm64/renesas/ulcb-audio-graph-card.dtsi @@ -0,0 +1,90 @@ +// 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>; + }; + }; + }; +}; |