Re: [PATCH] dt-bindings: usb: usb251xb: correct swap-dx-lanes type to uint32

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On 5/15/23 15:17, mike.looijmans@xxxxxxxx wrote:
See below...

Met vriendelijke groet / kind regards,

Mike Looijmans
System Expert


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Can you please drop this part next time ?

Please consider the environment before printing this e-mail
On 15-05-2023 14:55, Marek Vasut wrote:
On 5/15/23 12:33, Krzysztof Kozlowski wrote: diff --git a/Documentation/devicetree/bindings/usb/usb251xb.yaml b/Documentation/devicetree/bindings/usb/usb251xb.yaml
index 4d1530816817..ac5b99710332 100644
--- a/Documentation/devicetree/bindings/usb/usb251xb.yaml
+++ b/Documentation/devicetree/bindings/usb/usb251xb.yaml
@@ -231,7 +231,7 @@ properties:
        power-on sequence to a port until the port has adequate power.
      swap-dx-lanes:
-    $ref: /schemas/types.yaml#/definitions/uint8-array
+    $ref: /schemas/types.yaml#/definitions/uint32-array
      description: |
        Specifies the ports which will swap the differential-pair (D+/D-),
        default is not-swapped.

Would it make more sense to update the driver instead ? I doubt you could have more than 256 ports on this device after all.


I guess there's a bunch of devicetrees already out there using the (misdocumented) 32-bit array binding, they'd break in a bad way...

I think it is the other way around -- if the binding was documented as u8, then the existing DTs should use the u8 type if they are compliant to the binding document.

I see one board in next which uses this property and sets it to 0 , so this one is not affected either way: arch/arm64/boot/dts/freescale/imx8mq-zii-ultra-rmb3.dts: swap-dx-lanes = <0>;




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