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Krishna Kurapatigregkh
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arm64: dts: qcom: sc7280: Disable SuperSpeed instances in park mode
commit 3d930f1 upstream. On SC7280, in host mode, it is observed that stressing out controller results in HC died error: xhci-hcd.12.auto: xHCI host not responding to stop endpoint command xhci-hcd.12.auto: xHCI host controller not responding, assume dead xhci-hcd.12.auto: HC died; cleaning up And at this instant only restarting the host mode fixes it. Disable SuperSpeed instances in park mode for SC7280 to mitigate this issue. Reported-by: Doug Anderson <dianders@google.com> Cc: stable@vger.kernel.org Fixes: bb9efa5 ("arm64: dts: qcom: sc7280: Add USB related nodes") Signed-off-by: Krishna Kurapati <quic_kriskura@quicinc.com> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Link: https://lore.kernel.org/r/20240604060659.1449278-3-quic_kriskura@quicinc.com Signed-off-by: Bjorn Andersson <andersson@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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arch/arm64/boot/dts/qcom/sc7280.dtsi

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@@ -4131,6 +4131,7 @@
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iommus = <&apps_smmu 0xe0 0x0>;
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snps,dis_u2_susphy_quirk;
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snps,dis_enblslpm_quirk;
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snps,parkmode-disable-ss-quirk;
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phys = <&usb_1_hsphy>, <&usb_1_qmpphy QMP_USB43DP_USB3_PHY>;
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phy-names = "usb2-phy", "usb3-phy";
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maximum-speed = "super-speed";

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