[PATCH v2 05/10] arm64: dts: qcom: sc8280xp-arcata: Enable 4-lane DP support
From: Jérôme de Bretagne via B4 Relay
Date: Fri May 22 2026 - 06:52:42 EST
From: Jérôme de Bretagne <jerome.debretagne@xxxxxxxxx>
Allow up to 4 lanes for the DisplayPort link from the PHYs to the
controllers and allow mode-switch events to reach the QMP Combo PHYs
for the 2 left-side USB-C ports.
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
Signed-off-by: Jérôme de Bretagne <jerome.debretagne@xxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sc8280xp-microsoft-arcata.dts | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-arcata.dts b/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-arcata.dts
index 9abb52e3763715c8f72f8c95c068fd0b32901a1d..10fafd752734450ecddb2113ff972a08793a763c 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-arcata.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-arcata.dts
@@ -494,7 +494,7 @@ &mdss0_dp0 {
};
&mdss0_dp0_out {
- data-lanes = <0 1>;
+ data-lanes = <0 1 2 3>;
remote-endpoint = <&usb_0_qmpphy_dp_in>;
};
@@ -503,7 +503,7 @@ &mdss0_dp1 {
};
&mdss0_dp1_out {
- data-lanes = <0 1>;
+ data-lanes = <0 1 2 3>;
remote-endpoint = <&usb_1_qmpphy_dp_in>;
};
@@ -840,6 +840,7 @@ &usb_0_qmpphy {
vdda-phy-supply = <&vreg_l9d>;
vdda-pll-supply = <&vreg_l4d>;
+ mode-switch;
orientation-switch;
status = "okay";
@@ -877,6 +878,7 @@ &usb_1_qmpphy {
vdda-phy-supply = <&vreg_l4b>;
vdda-pll-supply = <&vreg_l3b>;
+ mode-switch;
orientation-switch;
status = "okay";
--
2.47.3