Commit 697dd494 authored by Alex Bee's avatar Alex Bee Committed by Heiko Stuebner
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arm64: dts: rockchip: add SPDIF node for ROCK Pi 4 



Add a SPDIF audio-graph-card to ROCK Pi 4 device tree.

It's not enabled by default since all dma channels are used by
the (already) enabled i2s0/1/2 and the pin is muxed with GPIO4_C5
which might be in use already.
If enabled SPDIF_TX will be available at pin #15.

Signed-off-by: default avatarAlex Bee <knaerzche@gmail.com>
Link: https://lore.kernel.org/r/20210618181256.27992-6-knaerzche@gmail.com


Signed-off-by: default avatarHeiko Stuebner <heiko@sntech.de>
parent 65bd2b8b

arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi

+26 −0
Original line number Diff line number Diff line
@@ -42,6 +42,23 @@ 
		dais = <&i2s0_p0>;

	};



	sound-dit {

		compatible = "audio-graph-card";

		label = "SPDIF";

		dais = <&spdif_p0>;

	};



	spdif-dit {

		compatible = "linux,spdif-dit";

		#sound-dai-cells = <0>;



		port {

			dit_p0_0: endpoint {

				remote-endpoint = <&spdif_p0_0>;

			};

		};

	};



	vcc12v_dcin: dc-12v {

		compatible = "regulator-fixed";

		regulator-name = "vcc12v_dcin";
@@ -631,6 +648,15 @@ 
	status = "okay";

};



&spdif {



	spdif_p0: port {

		spdif_p0_0: endpoint {

			remote-endpoint = <&dit_p0_0>;

		};

	};

};



&tcphy0 {

	status = "okay";

};