linux-kernel - Re: [PATCH V4] dt-bindings: soc: imx: Add binding doc for spba bus

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Date:   Thu, 12 Nov 2020 07:52:36 -0600
From:   Rob Herring <robh@...nel.org>
To:     Adam Ford <aford173@...il.com>
Cc:     Adam Ford-BE <aford@...conembedded.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        Shawn Guo <shawnguo@...nel.org>
Subject: Re: [PATCH V4] dt-bindings: soc: imx: Add binding doc for spba bus

On Thu, Nov 12, 2020 at 5:44 AM Adam Ford <aford173@...il.com> wrote:
>
> On Wed, Nov 11, 2020 at 2:18 PM Rob Herring <robh@...nel.org> wrote:
> >
> > On Wed, 11 Nov 2020 09:25:23 -0600, Adam Ford wrote:
> > > Add binding doc for fsl,spba-bus.
> > >
> > > Signed-off-by: Adam Ford <aford173@...il.com>
> > > ---
> > > make dt_binding_check showed no errors if I did this right.
> > >
> > > V4:  Remove an accidental makefile change
> > >      Move type:object under additional properties
> > >
> > > V3:  Rebase sample from aips-bus example
> > >      Split off from series adding i.MX8M Nano functions to reduce noise
> > >
> > > V2:  Attempted to update yaml from feedback
> > >
> >
> >
> > My bot found errors running 'make dt_binding_check' on your patch:
> >
> > yamllint warnings/errors:
> >
> > dtschema/dtc warnings/errors:
> > /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/bus/fsl,spba-bus.example.dt.yaml: bus@...00000: reg: [[805306368, 1048576]] is not of type 'object'
> >         From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/bus/fsl,spba-bus.yaml
> >
>
> Rob,
>
> Can you give me a pointer on what this message is saying?  I don't
> undertsand the YAML language, and I cannot get my machine to generate
> the same messages you're seeing.

'reg' is not documented, so it's defaulting to the schema in
'additionalProperties' which says anything else has to be a node
(which is an 'object' in json-schema).

> >
> > See https://patchwork.ozlabs.org/patch/1398351
> >
> > The base for the patch is generally the last rc1. Any dependencies
> > should be noted.
> >
> > If you already ran 'make dt_binding_check' and didn't see the above
> > error(s), then make sure 'yamllint' is installed and dt-schema is up to
> > date:
> >
> > pip3 install dtschema --upgrade
>
> I have installed yamllint, and I have run the above line, but when I
> run make dt_binding_check it fails to finish script even before I add
> this new binding.  If I revert the Makefile back to before the
> implementation of yamllint, it works, but doesn't show the error.
> When I restore the Makefile, it runs but it doesn't show the error.
> Once I do a make clean, and run the dt_binding_check again, it fails
> to finish with the following error
>
> make[1]: *** [Documentation/devicetree/bindings/Makefile:59:
> Documentation/devicetree/bindings/processed-schema-examples.json]
> Error 123
>
> It appears as if the processed-schema-examples.json is not generated at all.
>
> When I revert back to the older makefile, it appears that file is
> generated, but when I restore the makefile to the current version and
> run it again, it doesn't show the dtschema warnings/errors you see.
> I am guessing it's because the processed-schema-examples.json isn't
> being generated correctly after I run make clean.
>
> Do you have any ideas what might be missing from my build machine?

What tree? v5.10-rc3 landed some changes that shouldn't have gone in
and broke dt_binding_check. In any case, you can use 'make -k' to work
around any unrelated failure.

Rob