For Gen-1 targets like SM6350, it is seen that stressing out the controller in host mode 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 instance in park mode for SM6350 to mitigate this issue.

Cc: stable@vger.kernel.org Fixes: 23737b9557fe ("arm64: dts: qcom: sm6350: Add USB1 nodes") Signed-off-by: Krishna Kurapati quic_kriskura@quicinc.com --- arch/arm64/boot/dts/qcom/sm6350.dtsi | 1 + 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/qcom/sm6350.dtsi b/arch/arm64/boot/dts/qcom/sm6350.dtsi index 46e122c4421c..84009b74aee7 100644 --- a/arch/arm64/boot/dts/qcom/sm6350.dtsi +++ b/arch/arm64/boot/dts/qcom/sm6350.dtsi @@ -1921,6 +1921,7 @@ usb_1_dwc3: usb@a600000 { snps,dis_enblslpm_quirk; snps,has-lpm-erratum; snps,hird-threshold = /bits/ 8 <0x10>; + snps,parkmode-disable-ss-quirk; phys = <&usb_1_hsphy>, <&usb_1_qmpphy QMP_USB43DP_USB3_PHY>; phy-names = "usb2-phy", "usb3-phy"; usb-role-switch;