arm64: dts: qcom: sm8450-hdk: Enable HDMI Display

Add the HDMI display nodes and link it to DSI.
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221207012803.114959-6-dmitry.baryshkov@linaro.org

arch/arm64/boot/dts/qcom/sm8450-hdk.dts

@@ -21,6 +21,17 @@ chosen {
 		stdout-path = "serial0:115200n8";
 	};
 
+	hdmi-out {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_connector_out: endpoint {
+				remote-endpoint = <&lt9611_out>;
+			};
+		};
+	};
+
 	lt9611_1v2: lt9611-vdd12-regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "LT9611_1V2";
@@ -393,6 +404,27 @@ lt9611_codec: hdmi-bridge@2b {
 
 		pinctrl-names = "default";
 		pinctrl-0 = <&lt9611_irq_pin &lt9611_rst_pin>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				lt9611_a: endpoint {
+					remote-endpoint = <&mdss_dsi0_out>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+
+				lt9611_out: endpoint {
+					remote-endpoint = <&hdmi_connector_out>;
+				};
+			};
+		};
 	};
 };
 
@@ -405,6 +437,11 @@ &mdss_dsi0 {
 	status = "okay";
 };
 
+&mdss_dsi0_out {
+	remote-endpoint = <&lt9611_a>;
+	data-lanes = <0 1 2 3>;
+};
+
 &mdss_dsi0_phy {
 	vdds-supply = <&vreg_l5b_0p88>;
 	status = "okay";