Re: [PATCH v2 2/2] dt-bindings: iio: adc: Add DT docs for AD7292

From: Marcelo Schmitt
Date: Tue Oct 22 2019 - 23:43:16 EST


Hi Rob,

OK, thanks for the explanation.

I indeed missed some details from the documentation. I will be more
careful on my next readings.

I see there are other documentation files at Documentation/devicetree/
and Documentation/devicetree/bindings/. Besides these, would you
recommend other documentation and/or material for those who want to
write dt-bindings that validate with dt-schema?

Thanks in advance,

Marcelo

On 10/22, Rob Herring wrote:
> On Tue, Oct 22, 2019 at 9:06 AM Marcelo Schmitt
> <marcelo.schmitt1@xxxxxxxxx> wrote:
> >
> > Hi,
> >
> > I ran the DTC and CHECK for AD7292 schema however, the target '__build'
> > did not run due to errors found in regulator/fixed-regulator.yaml and
> > arm/allwinner,sun4i-a10-csi.yaml.
>
> Fixes for those are still pending in -next. Use 'make -k' and ignore those.
>
> >
> > I recall seeing something about the maxItems requirement over regulator
> > supplies being changed on the iio mailing list, so I updated my repo
> > locally, cloned and reinstalled the dt-schema toolset. However, I still
> > can't make it go through the '__build' target.
> >
> > Python 3.7.5rc1 is my default python and I got the following pip3
> > packages installed:
> >
> > ruamel.yaml 0.16.5
> > ruamel.yaml.clib 0.2.0
> > rfc3987 1.3.8
> > jsonschema 3.0.1
> > dtschema 0.0.1 at $HOME/<iio repo dir>/dt-schema
> >
> > Debian Bullseye packages installed:
> > python3-yaml/testing,now 5.1.2-1
> > libyaml-dev/testing,now 0.2.2-1
> >
> > I was only able to run DTC after installing the libyaml-dev package, so
> > I think it might be worth to add it to the project dependencies at
> > https://github.com/robherring/dt-schema.
>
> Strictly speaking, it's not a dependency for dt-schema. It's
> documented in Documentation/devicetree/writing-schema.rst. I've added
> a pointer to that in bindings/submitting-patches.txt. I'm not sure how
> else to make it more obvious.
>
> BTW, You will get a useful error message if libyaml is missing when
> building 'make dtbs_check'. I need to make that work for
> dt_binding_check.
>
> > apt-get install libyaml-dev
>
> You need the lib too, but that tends to already be installed. IIRC,
> installing the headers doesn't install the lib automatically.
>
> In any case, I wanted to avoid putting in distro specific instructions
> in the kernel.
>
> Rob
>
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