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 <andriy.shevchenko@linux.intel.com>
Tested-by: Ferry Toth <fntoth@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250212193116.2487289-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andy Shevchenko 2025-02-12 21:28:01 +02:00 committed by Greg Kroah-Hartman
parent 7f7283183c
commit 8bc8a32a28

View file

@ -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