[PATCH v2 10/12] arm64: dts: qcom: sc8280xp-x13s: disable ASPM L0s for Wi-Fi

From: Johan Hovold <johan+linaro@kernel.org>
To: Bjorn Helgaas <bhelgaas@google.com>,
	Bjorn Andersson <andersson@kernel.org>
Cc: "Konrad Dybcio" <konrad.dybcio@linaro.org>,
	"Lorenzo Pieralisi" <lpieralisi@kernel.org>,
	"Krzysztof Wilczyński" <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>,
	stable@vger.kernel.org
Subject: [PATCH v2 10/12] arm64: dts: qcom: sc8280xp-x13s: disable ASPM L0s for Wi-Fi
Date: Fri, 23 Feb 2024 16:21:22 +0100	[thread overview]
Message-ID: <20240223152124.20042-11-johan+linaro@kernel.org> (raw)
In-Reply-To: <20240223152124.20042-1-johan+linaro@kernel.org>

Enabling ASPM L0s on the Lenovo Thinkpad X13s results in Correctable
Errors (BadTLP, Timeout) when accessing the Wi-Fi controller so disable
it for now.

Fixes: 9f4f3dfad8cf ("PCI: qcom: Enable ASPM for platforms supporting 1.9.0 ops")
Cc: stable@vger.kernel.org      # 6.7
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
index a67756ada990..70824294108e 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
@@ -769,6 +769,7 @@ &pcie3a_phy {
 
 &pcie4 {
 	max-link-speed = <2>;
+	aspm-no-l0s;
 
 	perst-gpios = <&tlmm 141 GPIO_ACTIVE_LOW>;
 	wake-gpios = <&tlmm 139 GPIO_ACTIVE_LOW>;
-- 
2.43.0

