For Gen-1 targets like SM6115, 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 SM6115 to mitigate this issue.
Cc: stable@vger.kernel.org Fixes: 97e563bf5ba1 ("arm64: dts: qcom: sm6115: Add basic soc dtsi") Signed-off-by: Krishna Kurapati quic_kriskura@quicinc.com --- arch/arm64/boot/dts/qcom/sm6115.dtsi | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/qcom/sm6115.dtsi b/arch/arm64/boot/dts/qcom/sm6115.dtsi index 48ccd6fa8a11..e374733f3b85 100644 --- a/arch/arm64/boot/dts/qcom/sm6115.dtsi +++ b/arch/arm64/boot/dts/qcom/sm6115.dtsi @@ -1660,6 +1660,7 @@ usb_dwc3: usb@4e00000 { snps,has-lpm-erratum; snps,hird-threshold = /bits/ 8 <0x10>; snps,usb3_lpm_capable; + snps,parkmode-disable-ss-quirk;
usb-role-switch;