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dt-bindings: usb-xhci: add xhci-trb-ent-quirk property

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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 <william.wu@rock-chips.com>
This commit is contained in:
William Wu
2019-04-08 15:58:26 +08:00
committed by Tao Huang
parent 313d1b9f63
commit da1f09f2a2
1 changed files with 3 additions and 0 deletions
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3
Documentation/devicetree/bindings/usb/usb-xhci.txt
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@@ -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