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[RFC,09/10] arm64: dts: qcom: sc8280xp-crd: disable ASPM L0s for NVMe

Message ID 20240212165043.26961-10-johan+linaro@kernel.org (mailing list archive)
State Not Applicable
Delegated to: Krzysztof Wilczyński
Headers show
Series arm64: dts: qcom: sc8280xp: enable GICv3 ITS for PCIe | expand

Commit Message

Johan Hovold Feb. 12, 2024, 4:50 p.m. UTC 
Enabling ASPM L0s on the CRD results in a large amount of Correctable
Errors (Timeout) when accessing the NVMe controller so disable it for
now.

Fixes: 9f4f3dfad8cf ("PCI: qcom: Enable ASPM for platforms supporting 1.9.0 ops")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
 arch/arm64/boot/dts/qcom/sc8280xp-crd.dts | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
index 8c1fccf8847a..a428ba624ce1 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-crd.dts
@@ -525,6 +525,8 @@  keyboard@68 {
 };
 
 &pcie2a {
+	aspm-no-l0s;
+
 	perst-gpios = <&tlmm 143 GPIO_ACTIVE_LOW>;
 	wake-gpios = <&tlmm 145 GPIO_ACTIVE_LOW>;