linux-kernel - [PATCH 09/12] arm64: dts: mediatek: mt8395-radxa-nio-12l: Add HDMI sound output support

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Message-Id: <20251209-mtk-genio-evk-hdmi-support-v1-9-9a6106effba6@collabora.com>
Date: Tue, 09 Dec 2025 17:34:39 +0100
From: Louis-Alexis Eyraud <louisalexis.eyraud@...labora.com>
To: Chunfeng Yun <chunfeng.yun@...iatek.com>, Vinod Koul <vkoul@...nel.org>, 
 Neil Armstrong <neil.armstrong@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Chun-Kuang Hu <chunkuang.hu@...nel.org>, 
 Philipp Zabel <p.zabel@...gutronix.de>, 
 Guillaume Ranquet <granquet@...libre.com>
Cc: kernel@...labora.com, Krzysztof Kozlowski <krzk@...nel.org>, 
 linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org, 
 linux-phy@...ts.infradead.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Louis-Alexis Eyraud <louisalexis.eyraud@...labora.com>
Subject: [PATCH 09/12] arm64: dts: mediatek: mt8395-radxa-nio-12l: Add HDMI
 sound output support

Add in the sound node a new dai-link for ETDM3_OUT_BE to add the sound
output support through the HDMI TX connector.

Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@...labora.com>
---
 arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts b/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts
index b0e18876bd5d2341c6f17f47e9f11433be807ccd..1cd4b84e98615be6c5cb13d01b7baed0e017c3be 100644
--- a/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts
@@ -1072,6 +1072,14 @@ codec {
 			sound-dai = <&pmic 0>;
 		};
 	};
+
+	hdmi-dai-link {
+		link-name = "ETDM3_OUT_BE";
+
+		codec {
+			sound-dai = <&hdmi 0>;
+		};
+	};
 };
 
 &spi1 {

-- 
2.52.0