From 91c3c30edd0f4280e8736d5c17a1e1e6289a97fc Mon Sep 17 00:00:00 2001 From: Mahadevan P Date: Mon, 20 Apr 2026 15:30:02 +0530 Subject: [PATCH] FROMLIST: arm64: dts: qcom: qcs6490-rb3gen2: Enable 4-lane DisplayPort Alt Mode Add the mode-switch property to the QMP combo PHY so that mode-switch events are routed to it, allowing the PHY to enter DisplayPort Alternate Mode. Expand the DP data-lanes assignment from two to four lanes to make use of the full link bandwidth available in this configuration. Signed-off-by: Mahadevan P Link: https://lore.kernel.org/all/20260420-kodiak_4k-v1-1-83dfc66b8f06@oss.qualcomm.com/ --- arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts index d36937248a31..57eaae45edfc 100644 --- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts +++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts @@ -936,7 +936,7 @@ }; &mdss_dp_out { - data-lanes = <0 1>; + data-lanes = <0 1 2 3>; remote-endpoint = <&usb_dp_qmpphy_dp_in>; }; @@ -1583,6 +1583,7 @@ vdda-phy-supply = <&vreg_l6b_1p2>; vdda-pll-supply = <&vreg_l1b_0p912>; + mode-switch; orientation-switch; status = "okay";