Re: [PATCH v3 1/2] dt-bindings: usb: qcom,dwc3: Convert USB DWC3 bindings

From: Doug Anderson
Date: Wed Dec 18 2019 - 13:38:10 EST


Hi,

On Wed, Dec 18, 2019 at 4:41 AM Sandeep Maheswaram (Temp)
<sanm@xxxxxxxxxxxxxx> wrote:
> + assigned-clock-rates:
> + description:
> + Should be 19.2MHz (19200000) for MOCK_UTMI_CLK
> + >=125MHz (125000000) for MASTER_CLK in SS mode
> + >=60MHz (60000000) for MASTER_CLK in HS mode
> + maxItems: 2
>
> You can still express some limits here even if we don't go all out
> with the "oneOf". AKA I think this is better:
>
> assigned-clock-rates:
> items:
> - const: 19200000
> - minimum: 60000000
> description: >= 60 MHz in HS mode, >= 125 MHz in SS mode
>
> Facing error when i add as above.
> properties:assigned-clock-rates: {'items': [{'const': 19200000}, {'minimum': 60000000}]} is not valid under any of the given schemas
> Documentation/devicetree/bindings/Makefile:12: recipe for target 'Documentation/devicetree/bindings/usb/qcom,dwc3.example.dts' failed

I couldn't figure it out either. ...but at least this seemed to work
and is slightly better than what you have:

assigned-clock-rates:
items:
- description: Must be 19.2MHz (19200000)
- description: Must be >= 60 MHz in HS mode, >= 125 MHz in SS mode

So I'd say go with that.


-Doug