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

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Date:   Wed, 10 Feb 2021 18:35:19 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Adam Ford <aford173@...il.com>, Rob Herring <robh@...nel.org>
Cc:     linux-clk <linux-clk@...r.kernel.org>,
        Adam Ford-BE <aford@...conembedded.com>,
        Luca Ceresoli <luca@...aceresoli.net>,
        Michael Turquette <mturquette@...libre.com>,
        devicetree <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V3 1/2] dt-bindings: clk: versaclock5: Add optional load capacitance property

Quoting Adam Ford (2021-02-10 12:40:38)
> On Wed, Feb 10, 2021 at 2:18 PM Rob Herring <robh@...nel.org> 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@...il.com>
> > > ---
> > > 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.
> 

Is your dt-schema up to date?