Commit 8bc8a32a authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Greg Kroah-Hartman
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dt-bindings: usb: dwc3: Add a property to reserve endpoints 



Some of the endpoints may be reserved by hardware for different purposes,
e.g., tracing control and output. This is the case, for instance, on
Intel Merrifield and Moorefield platforms that reserve a few and USB driver
may not use them for the regular transfers. Add the respective bindings.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Tested-by: default avatarFerry Toth <fntoth@gmail.com>
Reviewed-by: default avatarRob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250212193116.2487289-2-andriy.shevchenko@linux.intel.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7f728318

Documentation/devicetree/bindings/usb/snps,dwc3-common.yaml

+11 −0
Original line number Diff line number Diff line
@@ -65,6 +65,17 @@ properties: 
      mode.

    type: boolean



  snps,reserved-endpoints:

    description:

      Reserve endpoints for other needs, e.g, for tracing control and output.

      When set, the driver will avoid using them for the regular USB transfers.

    $ref: /schemas/types.yaml#/definitions/uint8-array

    minItems: 1

    maxItems: 30

    items:

      minimum: 2

      maximum: 31



  snps,dis-start-transfer-quirk:

    description:

      When set, disable isoc START TRANSFER command failure SW work-around