linux-kernel - [PATCH 14/14] arm64: dts: qcom: x1e80100-qcp: Set up 4-lane DP

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Message-Id: <20250821-topic-x1e80100-4lanes-v1-14-0b1a0d093cd5@linaro.org>
Date: Thu, 21 Aug 2025 15:37:33 +0200
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, Neil Armstrong <neil.armstrong@...aro.org>
Subject: [PATCH 14/14] arm64: dts: qcom: x1e80100-qcp: Set up 4-lane DP

Allow up to 4 lanes for the DisplayPort link from the PHYs to the
controllers now the mode-switch events can reach the QMP Combo PHYs.

Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
---
 arch/arm64/boot/dts/qcom/x1e80100-qcp.dts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts b/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
index 9369b76c668b5c008fefd85d5ca18e87ab9ce93f..60a0318b696abd8748f42f1e53597fa710df6f7c 100644
--- a/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
+++ b/arch/arm64/boot/dts/qcom/x1e80100-qcp.dts
@@ -890,7 +890,7 @@ &mdss_dp0 {
 };
 
 &mdss_dp0_out {
-	data-lanes = <0 1>;
+	data-lanes = <0 1 2 3>;
 	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
 };
 
@@ -899,7 +899,7 @@ &mdss_dp1 {
 };
 
 &mdss_dp1_out {
-	data-lanes = <0 1>;
+	data-lanes = <0 1 2 3>;
 	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
 };
 
@@ -908,7 +908,7 @@ &mdss_dp2 {
 };
 
 &mdss_dp2_out {
-	data-lanes = <0 1>;
+	data-lanes = <0 1 2 3>;
 	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
 };
 

-- 
2.34.1