arm64: dts: mediatek: mt8395-nio-12l: Preconfigure DSI0 pipeline

This board can use a MIPI-DSI panel on the DSI0 connector: in
preparation for adding an overlay for the Radxa Display 8HD,
add a pipeline connecting VDOSYS0 components to DSI0.

This pipeline remains disabled by default, as it is expected
to be enabled only by a devicetree overlay that declares the
actual DSI panel node, completing the graph.

Link: https://lore.kernel.org/r/20250213112008.56394-4-angelogioacchino.delregno@collabora.com
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>

1 files changed, 26 insertions, 0 deletions

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 41dc34837b02..7184dc99296c 100644
--- a/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts
+++ b/arch/arm64/boot/dts/mediatek/mt8395-radxa-nio-12l.dts
@@ -172,6 +172,32 @@
 	cpu-supply = <&mt6315_6_vbuck1>;
 };
 
+&dither0_out {
+	remote-endpoint = <&dsi0_in>;
+};
+
+&dsi0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+			dsi0_in: endpoint {
+				remote-endpoint = <&dither0_out>;
+			};
+		};
+
+		port@1 {
+			reg = <1>;
+			dsi0_out: endpoint { };
+		};
+	};
+};
+
 &eth {
 	phy-mode = "rgmii-rxid";
 	phy-handle = <&rgmii_phy>;