Received-SPF: pass (google.com: domain of linux-kernel+bounces-62015-linux.lists.archive=gmail.com@vger.kernel.org designates 139.178.88.99 as permitted sender) client-ip=139.178.88.99;
From: Johan Hovold <johan+linaro@kernel.org>
To: Bjorn Andersson <andersson@kernel.org>,
	Bjorn Helgaas <bhelgaas@google.com>
Cc: Konrad Dybcio <konrad.dybcio@linaro.org>,
	Lorenzo Pieralisi <lpieralisi@kernel.org>,
	=?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= <kw@linux.com>,
	Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
	linux-arm-msm@vger.kernel.org,
	linux-pci@vger.kernel.org,
	devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Johan Hovold <johan+linaro@kernel.org>
Subject: [PATCH 04/10] arm64: dts: qcom: sc8280xp-crd: limit pcie4 link speed
Date: Mon, 12 Feb 2024 17:50:37 +0100
Message-ID: <20240212165043.26961-5-johan+linaro@kernel.org>
In-Reply-To: <20240212165043.26961-1-johan+linaro@kernel.org>
References: <20240212165043.26961-1-johan+linaro@kernel.org>
Precedence: bulk
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit

Limit the WiFi PCIe link speed to Gen2 speed (500 GB/s), which is the
speed that Windows uses.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
index f34c572253f5..8c1fccf8847a 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
@@ -563,6 +563,8 @@ &pcie3a_phy {
 };
 
 &pcie4 {
+	max-link-speed = <2>;
+
 	perst-gpios = <&tlmm 141 GPIO_ACTIVE_LOW>;
 	wake-gpios = <&tlmm 139 GPIO_ACTIVE_LOW>;
 
-- 
2.43.0