From: Maud Spierings <maud_spierings@hotmail.com>

Enable the HDMI port on left side of the laptop.

The display signal is routed through a simple Displayport to HDMI
bridge.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Maud Spierings <maud_spierings@hotmail.com>
---
 .../boot/dts/qcom/x1e80100-asus-vivobook-s15.dts   | 81 ++++++++++++++++++++++
 1 file changed, 81 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100-asus-vivobook-s15.dts b/arch/arm64/boot/dts/qcom/x1e80100-asus-vivobook-s15.dts
index ea8ad67e511f..d5794189b98b 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-asus-vivobook-s15.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-asus-vivobook-s15.dts
@@ -37,6 +37,45 @@ switch-lid {
 		};
 	};
 
+	hdmi-bridge {
+		compatible = "parade,ps185hdm";
+
+		pinctrl-0 = <&hdmi_hpd_default>;
+		pinctrl-names = "default";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				hdmi_bridge_dp_in: endpoint {
+					remote-endpoint = <&usb_1_ss2_qmpphy_out_dp>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+
+				hdmi_bridge_tmds_out: endpoint {
+					remote-endpoint = <&hdmi_con>;
+				};
+			};
+		};
+	};
+
+	hdmi-connector {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_con: endpoint {
+				remote-endpoint = <&hdmi_bridge_tmds_out>;
+			};
+		};
+	};
+
 	pmic-glink {
 		compatible = "qcom,x1e80100-pmic-glink",
 			     "qcom,sm8550-pmic-glink",
@@ -814,6 +853,14 @@ &mdss_dp1_out {
 	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
 };
 
+&mdss_dp2 {
+	status = "okay";
+};
+
+&mdss_dp2_out {
+	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
+};
+
 &mdss_dp3 {
 	/delete-property/ #sound-dai-cells;
 
@@ -1047,6 +1094,12 @@ hall_int_n_default: hall-int-n-state {
 		bias-disable;
 	};
 
+	hdmi_hpd_default: hdmi-hpd-default-state {
+		pins = "gpio126";
+		function = "usb2_dp";
+		bias-disable;
+	};
+
 	kybd_default: kybd-default-state {
 		pins = "gpio67";
 		function = "gpio";
@@ -1243,6 +1296,34 @@ &usb_1_ss1_qmpphy_out {
 	remote-endpoint = <&retimer_ss1_ss_in>;
 };
 
+&usb_1_ss2_qmpphy {
+	vdda-phy-supply = <&vreg_l2j_1p2>;
+	vdda-pll-supply = <&vreg_l2d_0p9>;
+
+	/delete-property/ mode-switch;
+	/delete-property/ orientation-switch;
+
+	status = "okay";
+
+	ports {
+		port@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			/delete-node/ endpoint;
+
+			usb_1_ss2_qmpphy_out_dp: endpoint@0 {
+				reg = <0>;
+
+				data-lanes = <3 2 1 0>;
+				remote-endpoint = <&hdmi_bridge_dp_in>;
+			};
+
+			/* No USB3 lanes connected */
+		};
+	};
+};
+
 &usb_2 {
 	status = "okay";
 };

-- 
2.52.0

On Sat, Dec 20, 2025 at 12:38:58PM +0100, Maud Spierings via B4 Relay wrote:
> From: Maud Spierings <maud_spierings@hotmail.com>
> 
> Enable the HDMI port on left side of the laptop.
> 
> The display signal is routed through a simple Displayport to HDMI
> bridge.
> 
> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
> Signed-off-by: Maud Spierings <maud_spierings@hotmail.com>
> ---
>  .../boot/dts/qcom/x1e80100-asus-vivobook-s15.dts   | 81 ++++++++++++++++++++++
>  1 file changed, 81 insertions(+)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>


-- 
With best wishes
Dmitry