6.6-stable review patch. If anyone has any objections, please let me know.
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From: Krishna Kurapati quic_kriskura@quicinc.com
[ Upstream commit dc6ba95c6c4400a84cca5b419b34ae852a08cfb5 ]
For Gen-1 targets like IPQ8074, 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 IPQ8074 to mitigate this issue.
Cc: stable@vger.kernel.org Fixes: 5e09bc51d07b ("arm64: dts: ipq8074: enable USB support") Signed-off-by: Krishna Kurapati quic_kriskura@quicinc.com Reviewed-by: Konrad Dybcio konrad.dybcio@linaro.org Link: https://lore.kernel.org/r/20240704152848.3380602-3-quic_kriskura@quicinc.com Signed-off-by: Bjorn Andersson andersson@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/qcom/ipq8074.dtsi | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/ipq8074.dtsi b/arch/arm64/boot/dts/qcom/ipq8074.dtsi index 5effd8180cc41..e5993a365870c 100644 --- a/arch/arm64/boot/dts/qcom/ipq8074.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq8074.dtsi @@ -641,6 +641,7 @@ dwc_0: usb@8a00000 { interrupts = <GIC_SPI 140 IRQ_TYPE_LEVEL_HIGH>; phys = <&qusb_phy_0>, <&usb0_ssphy>; phy-names = "usb2-phy", "usb3-phy"; + snps,parkmode-disable-ss-quirk; snps,is-utmi-l1-suspend; snps,hird-threshold = /bits/ 8 <0x0>; snps,dis_u2_susphy_quirk; @@ -683,6 +684,7 @@ dwc_1: usb@8c00000 { interrupts = <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>; phys = <&qusb_phy_1>, <&usb1_ssphy>; phy-names = "usb2-phy", "usb3-phy"; + snps,parkmode-disable-ss-quirk; snps,is-utmi-l1-suspend; snps,hird-threshold = /bits/ 8 <0x0>; snps,dis_u2_susphy_quirk;