Re: [PATCH V3 1/2] dt-bindings: clk: versaclock5: Add optional load capacitance property

[Adam Ford]

On Wed, Feb 10, 2021 at 2:18 PM Rob Herring <robh@xxxxxxxxxx> wrote:
>
> On Sun, Feb 07, 2021 at 12:51:38PM -0600, Adam Ford wrote:
> > There are two registers which can set the load capacitance for
> > XTAL1 and XTAL2. These are optional registers when using an
> > external crystal.  Since XTAL1 and XTAL2 will set to the same value,
> > update the binding to support a single property called
> > xtal-load-femtofarads.
> >
> > Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
> > ---
> > V3:  No Change
> > V2:  No Change
> >
> > A couple people suggested that I not use the $ref, but without it,
> > the bindings check failed with errors.
> >
> > diff --git a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
> > index 2ac1131fd922..c268debe5b8d 100644
> > --- a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
> > +++ b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
> > @@ -59,6 +59,12 @@ properties:
> >      minItems: 1
> >      maxItems: 2
> >
> > +  idt,xtal-load-femtofarads:
> > +    $ref: /schemas/types.yaml#/definitions/uint32
>
> Don't need a type with standard unit suffix.

If I remove that line, the binding check fails.

adam
>
> > +    minimum: 9000
> > +    maximum: 22760
> > +    description: Optional load capacitor for XTAL1 and XTAL2
> > +
> >  patternProperties:
> >    "^OUT[1-4]$":
> >      type: object
> > --
> > 2.25.1
> >