linux-kernel - [PATCH 06/14] arm64: dts: qcom: sm8650-hdk: Set up 4-lane DP

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Message-Id: <20250821-topic-x1e80100-4lanes-v1-6-0b1a0d093cd5@linaro.org>
Date: Thu, 21 Aug 2025 15:37:25 +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 06/14] arm64: dts: qcom: sm8650-hdk: 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/sm8650-hdk.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8650-hdk.dts b/arch/arm64/boot/dts/qcom/sm8650-hdk.dts
index a00da76a60620b998973cab189f12eeaa0a448fa..5029c8bfec5921074ae6e1171bc3685ed9407278 100644
--- a/arch/arm64/boot/dts/qcom/sm8650-hdk.dts
+++ b/arch/arm64/boot/dts/qcom/sm8650-hdk.dts
@@ -942,7 +942,7 @@ &mdss_dp0 {
 };
 
 &mdss_dp0_out {
-	data-lanes = <0 1>;
+	data-lanes = <0 1 2 3>;
 };
 
 &pcie0 {

-- 
2.34.1