From a1338b39c14ddf50b841e891833786037dec6de4 Mon Sep 17 00:00:00 2001 From: Neil Armstrong Date: Wed, 19 Nov 2025 09:45:42 +0100 Subject: [PATCH] arm64: dts: qcom: x1e78100-lenovo-thinkpad-t14s: add HDMI nodes The Thinkpad T14s embeds a transparent 4lanes DP->HDMI transceiver connected to the third QMP Combo PHY 4 lanes. Add all the data routing, disable mode switching and specify the QMP Combo PHY should be in DP-Only mode to route the 4 lanes to the underlying DP phy. Reviewed-by: Konrad Dybcio Reviewed-by: Dmitry Baryshkov Signed-off-by: Neil Armstrong Link: https://lore.kernel.org/r/20251119-topic-x1e80100-hdmi-v7-3-2bee0e66cc1b@linaro.org Signed-off-by: Bjorn Andersson --- .../qcom/x1e78100-lenovo-thinkpad-t14s.dtsi | 81 +++++++++++++++++++ 1 file changed, 81 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi index b45e377a22c62..4d7fd51f370b7 100644 --- a/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi +++ b/arch/arm64/boot/dts/qcom/x1e78100-lenovo-thinkpad-t14s.dtsi @@ -62,6 +62,45 @@ }; }; + hdmi-bridge { + compatible = "realtek,rtd2171"; + + 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", @@ -1076,6 +1115,14 @@ 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; @@ -1371,6 +1418,12 @@ output-low; }; + hdmi_hpd_default: hdmi-hpd-default-state { + pins = "gpio126"; + function = "usb2_dp"; + bias-disable; + }; + tpad_default: tpad-default-state { pins = "gpio3"; function = "gpio"; @@ -1602,6 +1655,34 @@ 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"; }; -- 2.47.3