| Message ID | 20250203191524.3730346-2-andriy.shevchenko@linux.intel.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | usb: dwc3: Avoid using reserved EPs | expand |
On Mon, 03 Feb 2025 21:10:53 +0200, Andy Shevchenko wrote: > 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> > --- > .../devicetree/bindings/usb/snps,dwc3-common.yaml | 11 +++++++++++ > 1 file changed, 11 insertions(+) > Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3-common.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3-common.yaml index c956053fd036..71249b6ba616 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
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> --- .../devicetree/bindings/usb/snps,dwc3-common.yaml | 11 +++++++++++ 1 file changed, 11 insertions(+)