Synopsys DWC_usb3x host controllers will not detect enhanced super-speed (eSS) device disconnection if it has active isochronous IN endpoint(s) behind one or more eSS hubs. Introduce a quirk to workaround this for xhci and dwc3 device tree. Signed-off-by: Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx> --- Documentation/devicetree/bindings/usb/dwc3.txt | 3 +++ Documentation/devicetree/bindings/usb/usb-xhci.txt | 2 ++ 2 files changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt index 1aae2b6160c1..b23b52f5842a 100644 --- a/Documentation/devicetree/bindings/usb/dwc3.txt +++ b/Documentation/devicetree/bindings/usb/dwc3.txt @@ -105,6 +105,9 @@ Optional properties: this and tx-thr-num-pkt-prd to a valid, non-zero value 1-16 (DWC_usb31 programming guide section 1.2.3) to enable periodic ESS TX threshold. + - snps,blocked-disconnection: enable workaround to undetected disconnection + while isoc endpoint(s) are active for DWC_usb3x + controllers operating as host - <DEPRECATED> tx-fifo-resize: determines if the FIFO *has* to be reallocated. - snps,incr-burst-type-adjustment: Value for INCR burst type of GSBUSCFG0 diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt index 0c5cff84a969..60812ae74d46 100644 --- a/Documentation/devicetree/bindings/usb/usb-xhci.txt +++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt @@ -28,6 +28,8 @@ Optional properties: - quirk-broken-port-ped: set if the controller has broken port disable mechanism - imod-interval-ns: default interrupt moderation interval is 5000ns - phys : see usb-hcd.yaml in the current directory + - blocked-disconnection: workaround undetected disconnection while isoc + endpoint(s) are active additionally the properties from usb-hcd.yaml (in the current directory) are supported. base-commit: 270315b8235e3d10c2e360cff56c2f9e0915a252 -- 2.28.0
