linux-kernel - [PATCH v4 2/2] arm64: dts: qcom: sa8775p: Remove max link speed property for PCIe EP

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Message-Id: <20250604-update_phy-v4-2-d04b12bb89f2@quicinc.com>
Date: Wed, 04 Jun 2025 12:05:58 +0530
From: Mrinmay Sarkar <mrinmay.sarkar@....qualcomm.com>
To: Vinod Koul <vkoul@...nel.org>, Kishon Vijay Abraham I <kishon@...nel.org>,
        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-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-phy@...ts.infradead.org, devicetree@...r.kernel.org,
        krishna.chundru@....qualcomm.com, quic_vbadigan@...cinc.com,
        quic_nayiluri@...cinc.com, quic_ramkri@...cinc.com,
        quic_nitegupt@...cinc.com, Mrinmay Sarkar <quic_msarkar@...cinc.com>,
        Mrinmay Sarkar <mrinmay.sarkar@....qualcomm.com>
Subject: [PATCH v4 2/2] arm64: dts: qcom: sa8775p: Remove max link speed
 property for PCIe EP

From: Mrinmay Sarkar <mrinmay.sarkar@....qualcomm.com>

The maximum link speed was previously restricted to Gen3 due to the
absence of Gen4 equalization support in the driver.

As Gen4 equalization is already supported by the PCIe controller
driver, remove the max-link-speed property.

Signed-off-by: Mrinmay Sarkar <mrinmay.sarkar@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/sa8775p.dtsi | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
index 5bd0c03476b143444543c68cd1c1d475c3302555..b001e9a30e863d8964219c8bd61bc328be71b256 100644
--- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
+++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
@@ -6462,7 +6462,6 @@ pcie0_ep: pcie-ep@...0000 {
 		power-domains = <&gcc PCIE_0_GDSC>;
 		phys = <&pcie0_phy>;
 		phy-names = "pciephy";
-		max-link-speed = <3>; /* FIXME: Limiting the Gen speed due to stability issues */
 		num-lanes = <2>;
 		linux,pci-domain = <0>;
 
@@ -6620,7 +6619,6 @@ pcie1_ep: pcie-ep@...0000 {
 		power-domains = <&gcc PCIE_1_GDSC>;
 		phys = <&pcie1_phy>;
 		phy-names = "pciephy";
-		max-link-speed = <3>; /* FIXME: Limiting the Gen speed due to stability issues */
 		num-lanes = <4>;
 		linux,pci-domain = <1>;
 

-- 
2.25.1