linux-kernel - [PATCH v1 2/4] arm64: dts: qcom: x1e001de-devkit: Enable HBR3 on external DPs

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Message-ID: <20250226231436.16138-3-alex.vinarskis@gmail.com>
Date: Thu, 27 Feb 2025 00:12:10 +0100
From: Aleksandrs Vinarskis <alex.vinarskis@...il.com>
To: Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	laurentiu.tudor1@...l.com,
	abel.vesa@...aro.org,
	Aleksandrs Vinarskis <alex.vinarskis@...il.com>
Subject: [PATCH v1 2/4] arm64: dts: qcom: x1e001de-devkit: Enable HBR3 on external DPs

When no link frequencies are set, msm/dp driver defaults to HBR2 speed.
Explicitly list supported frequencies including HBR3/8.1Gbps for all
external DisplayPort(s).

Signed-off-by: Aleksandrs Vinarskis <alex.vinarskis@...il.com>
---
 arch/arm64/boot/dts/qcom/x1e001de-devkit.dts | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/x1e001de-devkit.dts b/arch/arm64/boot/dts/qcom/x1e001de-devkit.dts
index 5e3970b26e2f..602bd793e09c 100644
--- a/arch/arm64/boot/dts/qcom/x1e001de-devkit.dts
+++ b/arch/arm64/boot/dts/qcom/x1e001de-devkit.dts
@@ -942,6 +942,7 @@ &mdss_dp0 {
 
 &mdss_dp0_out {
 	data-lanes = <0 1>;
+	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
 };
 
 &mdss_dp1 {
@@ -950,6 +951,7 @@ &mdss_dp1 {
 
 &mdss_dp1_out {
 	data-lanes = <0 1>;
+	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
 };
 
 &mdss_dp2 {
@@ -958,6 +960,7 @@ &mdss_dp2 {
 
 &mdss_dp2_out {
 	data-lanes = <0 1>;
+	link-frequencies = /bits/ 64 <1620000000 2700000000 5400000000 8100000000>;
 };
 
 &pcie4 {
-- 
2.45.2