Re: [PATCH v3 3/5] dt-bindings: usb: dwc3: add reference clock period fractional adjustment

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On Thu, 2022-01-13 at 20:18 -0600, Rob Herring wrote:
> On Thu, Jan 13, 2022 at 11:58 AM Robert Hancock
> <robert.hancock@xxxxxxxxxx> wrote:
> > On Wed, 2022-01-12 at 13:46 -0600, Rob Herring wrote:
> > > On Wed, Jan 12, 2022 at 10:54 AM Robert Hancock
> > > <robert.hancock@xxxxxxxxxx> wrote:
> > > > On Tue, 2022-01-11 at 09:14 -0600, Rob Herring wrote:
> > > > > On Mon, 10 Jan 2022 14:19:34 -0600, Robert Hancock wrote:
> > > > > > Document the new snps,ref-clock-fladj property which can be used to
> > > > > > set
> > > > > > the fractional portion of the reference clock period.
> > > > > > 
> > > > > > Signed-off-by: Robert Hancock <robert.hancock@xxxxxxxxxx>
> > > > > > ---
> > > > > >  Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 12
> > > > > > ++++++++++++
> > > > > >  1 file changed, 12 insertions(+)
> > > > > > 
> > > > > 
> > > > > My bot found errors running 'make DT_CHECKER_FLAGS=-m
> > > > > dt_binding_check'
> > > > > on your patch (DT_CHECKER_FLAGS is new in v5.13):
> > > > > 
> > > > > yamllint warnings/errors:
> > > > > 
> > > > > dtschema/dtc warnings/errors:
> > > > > schemas/usb/snps,dwc3.yaml: ignoring, error in schema: properties:
> > > > > snps,ref-
> > > > > clock-fladj
> > > > 
> > > > I'm assuming this schema file needs to be updated, but I'm not sure
> > > > where
> > > > it
> > > > lives? I don't see such a file in the devicetree-org/dt-schema repo?
> > > 
> > > Try Documentation/devicetree/bindings/usb/snps,dwc3.yaml
> > 
> > That's the one I'm patching, but it seems like it is comparing that to
> > another
> > schema file that I can't find, and is unhappy because the new property I'm
> > adding isn't there? The way it's defined in the bindings file itself seems
> > no
> > different from the others:
> 
> The problem is in Documentation/devicetree/bindings/usb/snps,dwc3.yaml
> with the property you added. It is as simple as that. It's failing on
> the meta-schema vendor-props.yaml which is in the dtschema repo (and
> also on your computer where dtschema is installed).
> 
> Just run:
> 
> dt-doc-validate -u Documentation/devicetree/bindings/
> Documentation/devicetree/bindings/usb/snps,dwc3.yaml
> 
> > dtschema/dtc warnings/errors:
> > schemas/usb/snps,dwc3.yaml: ignoring, error in schema: properties:
> > snps,ref-
> > clock-fladj
> > /builds/robherring/linux-dt-
> > review/Documentation/devicetree/bindings/usb/snps,dwc3.yaml:
> > properties:snps,ref-clock-fladj: 'oneOf' conditional failed, one must be
> > fixed:
> 
> The important parts are what came after the above. Read the 'hints'.

Indeed, looks like it was missing the $ref to specify the type. I think my
confusion was because the immediately preceding parameter in the
file, snps,ref-clock-period-ns, was also missing $ref with no complaints, I
guess because it has the -ns suffix.. Will update in the next version.

> 
> Rob




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