From da1f09f2a226dc5afc9bb4d1fbdbfe459d5f9970 Mon Sep 17 00:00:00 2001 From: William Wu Date: Mon, 8 Apr 2019 15:58:26 +0800 Subject: [PATCH] dt-bindings: usb-xhci: add xhci-trb-ent-quirk property This patch adds a new "xhci-trb-ent-quirk" property for some Rockchip platforms which need to enable the ENT flag in the TRB to force the xHC to pre-fetch the next TRB of a TD. Change-Id: I670cfc759433b858feb1d5bb2805c793b050328a Signed-off-by: William Wu --- Documentation/devicetree/bindings/usb/usb-xhci.txt | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/usb-xhci.txt b/Documentation/devicetree/bindings/usb/usb-xhci.txt index dab51612eb8f..d520675ac44a 100644 --- a/Documentation/devicetree/bindings/usb/usb-xhci.txt +++ b/Documentation/devicetree/bindings/usb/usb-xhci.txt @@ -38,6 +38,9 @@ Optional properties: - quirk-broken-port-ped: set if the controller has broken port disable mechanism - xhci-slow-suspend: set if it needs an extraordinary delay to wait for xHC enter the Halted state after the Run/Stop (R/S) bit is cleared to '0' + - xhci-trb-ent-quirk: set if this xhci platform need to enable the Evaluate + Next TRB(ENT) flag in the TRB data structure to force xHC to pre-fetch + the next TRB of a TD. - imod-interval-ns: default interrupt moderation interval is 5000ns - phys : see usb-hcd.txt in the current directory