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Date:   Tue, 22 Oct 2019 11:06:33 -0300
From:   Marcelo Schmitt <marcelo.schmitt1@gmail.com>
To:     Rob Herring <robh@kernel.org>
Cc:     Jonathan Cameron <jic23@kernel.org>,
        Dragos Bogdan <dragos.bogdan@analog.com>,
        Alexandru Ardelean <alexandru.ardelean@analog.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "open list:IIO SUBSYSTEM AND DRIVERS" <linux-iio@vger.kernel.org>,
        devicetree@vger.kernel.org, kernel-usp@googlegroups.com
Subject: Re: [PATCH v2 2/2] dt-bindings: iio: adc: Add DT docs for AD7292
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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.

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.

apt-get install libyaml-dev

Thanks,
Marcelo

On 10/20, Rob Herring wrote:
> On Sat, Oct 19, 2019 at 10:07 AM Marcelo Schmitt
> <marcelo.schmitt1@gmail.com> wrote:
> >
> > Hi Rob
> >
> > Thanks for the review.
> >
> > I'm having some trouble with the DTC.
> > I installed the DT tool from https://github.com/robherring/dt-schema.
> > Running make -k dt_binding_check goes through all the checks (CHKDT), producing
> > the .example.dts files but then gives errors like:
> >
> >   DTC     Documentation/devicetree/bindings/arm/calxeda.example.dt.yaml
> > FATAL ERROR: Unknown output format "yaml"
> > make[1]: *** [scripts/Makefile.lib:314: Documentation/devicetree/bindings/arm/calxeda.example.dt.yaml] Error 1
> > make[1]: *** Deleting file 'Documentation/devicetree/bindings/arm/calxeda.example.dt.yaml'
> >
> > My pip3 installation has:
> > jsonschema jsonschema-3.1.2.dev6+g0d827f3
> > rfc3987 1.3.8
> >
> > $HOME/.local/bin is listed in my shell's PATH variable.
> >
> > I was trying to follow the documentation at:
> > Documentation/devicetree/writing-schema.rst
> >
> > Are there any other DTC dependencies that I am missing?
> 
> Yes, libyaml. See Documentation/devicetree/writing-schema.rst.
> 
> Rob