From 8bc8a32a280410f68eae99e1ec623ac87586cb1f Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Wed, 12 Feb 2025 21:28:01 +0200 Subject: [PATCH] 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: Andy Shevchenko Tested-by: Ferry Toth Reviewed-by: Rob Herring (Arm) Link: https://lore.kernel.org/r/20250212193116.2487289-2-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman --- .../devicetree/bindings/usb/snps,dwc3-common.yaml | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3-common.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3-common.yaml index c956053fd0366..71249b6ba6168 100644 --- a/Documentation/devicetree/bindings/usb/snps,dwc3-common.yaml +++ b/Documentation/devicetree/bindings/usb/snps,dwc3-common.yaml @@ -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 -- 2.47.3