linux-kernel - Re: [PATCH] docs: dt: writing-schema: Document usage of CHECK

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Date:   Thu, 3 Nov 2022 10:19:15 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Nícolas F. R. A. Prado 
        <nfraprado@...labora.com>, Rob Herring <robh+dt@...nel.org>
Cc:     kernel@...labora.com,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH] docs: dt: writing-schema: Document usage of CHECK_DTBS
 make flag

Il 02/11/22 22:43, Nícolas F. R. A. Prado ha scritto:
> It is possible to run checks on a Devicetree by passing the CHECK_DTBS
> flag when building. This is a useful shortcut to the dtbs_check make
> target since it avoids checking unrelated Devicetrees, which can take
> some time and is unnecessary if no bindings were modified. Document it.
> 
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
>  > ---
> 
>   Documentation/devicetree/bindings/writing-schema.rst | 7 +++++++
>   1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/writing-schema.rst b/Documentation/devicetree/bindings/writing-schema.rst
> index 4a381d20f2b4..55ad556472b4 100644
> --- a/Documentation/devicetree/bindings/writing-schema.rst
> +++ b/Documentation/devicetree/bindings/writing-schema.rst
> @@ -167,6 +167,13 @@ setting the ``DT_SCHEMA_FILES`` variable to a specific schema file or pattern.
>       make dt_binding_check DT_SCHEMA_FILES=/gpio/
>       make dtbs_check DT_SCHEMA_FILES=trivial-devices.yaml
>   
> +Note that ``make dtbs_check`` will validate every DT source file that is

"Note that xxxx" looks a bit repeated... read:

Note that ``dtbs_check`` will skip any binding schema files with errors.
(etc etc)

Note that ``make dtbs_check`` will validate every DT source file ...
(etc etc)

Perhaps we can change the first paragraph saying
"In order to perform validation of DT source files, use..."
to something like:

In order to perform validation of all DT source files, use the ``dtbs_check``
target, or set the ``CHECK_DTBS`` variable to ``y`` when building specific DTs::

::

     make dtbs_check
     make CHECK_DTBS=y mediatek/mt8192-evb.dtb

Any opinion?

Cheers,
Angelo