[PATCH 06/11] arm64: dts: qcom: sc8280xp-arcata: Enable 4-lane DP support

From: Jérôme de Bretagne via B4 Relay

Date: Wed May 20 2026 - 13:37:38 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.

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 50fabf8961fd9869a31f24a69da854348fc1d891..2a6f0c9de7c85a4f0659237846b0430a0b021a40 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-arcata.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-arcata.dts
@@ -511,7 +511,7 @@ &mdss0_dp0 {
};

&mdss0_dp0_out {
- data-lanes = <0 1>;
+ data-lanes = <0 1 2 3>;
remote-endpoint = <&usb_0_qmpphy_dp_in>;
};

@@ -520,7 +520,7 @@ &mdss0_dp1 {
};

&mdss0_dp1_out {
- data-lanes = <0 1>;
+ data-lanes = <0 1 2 3>;
remote-endpoint = <&usb_1_qmpphy_dp_in>;
};

@@ -857,6 +857,7 @@ &usb_0_qmpphy {
vdda-phy-supply = <&vreg_l9d>;
vdda-pll-supply = <&vreg_l4d>;

+ mode-switch;
orientation-switch;

status = "okay";
@@ -894,6 +895,7 @@ &usb_1_qmpphy {
vdda-phy-supply = <&vreg_l4b>;
vdda-pll-supply = <&vreg_l3b>;

+ mode-switch;
orientation-switch;

status = "okay";

--
2.47.3