linux-kernel - [PATCH] arm64: dts: rockchip: add SPDIF audio to Beelink A1

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Message-Id: <20250828164300.3829488-1-christianshewitt@gmail.com>
Date: Thu, 28 Aug 2025 16:43:00 +0000
From: Christian Hewitt <christianshewitt@...il.com>
To: Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Heiko Stuebner <heiko@...ech.de>,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Cc: Alex Bee <knaerzche@...il.com>
Subject: [PATCH] arm64: dts: rockchip: add SPDIF audio to Beelink A1

From: Alex Bee <knaerzche@...il.com>

Add the required nodes to enable SPDIF audio output on
the Beelink A1 set-top-box.

Signed-off-by: Alex Bee <knaerzche@...il.com>
Signed-off-by: Christian Hewitt <christianshewitt@...il.com>
---
 arch/arm64/boot/dts/rockchip/rk3328-a1.dts | 23 ++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3328-a1.dts b/arch/arm64/boot/dts/rockchip/rk3328-a1.dts
index f7c4578865c5..b276a29bdd85 100644
--- a/arch/arm64/boot/dts/rockchip/rk3328-a1.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3328-a1.dts
@@ -58,6 +58,24 @@ ir-receiver {
 		gpios = <&gpio2 RK_PA2 GPIO_ACTIVE_LOW>;
 		linux,rc-map-name = "rc-beelink-gs1";
 	};
+
+	spdif_sound: spdif-sound {
+		compatible = "simple-audio-card";
+		simple-audio-card,name = "SPDIF";
+
+		simple-audio-card,cpu {
+			sound-dai = <&spdif>;
+		};
+
+		simple-audio-card,codec {
+			sound-dai = <&spdif_dit>;
+		};
+	};
+
+	spdif_dit: spdif-dit {
+		compatible = "linux,spdif-dit";
+		#sound-dai-cells = <0>;
+	};
 };
 
 &analog_sound {
@@ -325,6 +343,11 @@ &sdmmc {
 	status = "okay";
 };
 
+&spdif {
+	pinctrl-0 = <&spdifm0_tx>;
+	status = "okay";
+};
+
 &tsadc {
 	rockchip,hw-tshut-mode = <0>;
 	rockchip,hw-tshut-polarity = <0>;
-- 
2.34.1