linux-kernel - Re: [PATCH v2] dt-bindings: mtd: Add a schema for binman

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Message-Id: <169543475215.118855.13530210565205347052.robh@kernel.org>
Date:   Fri, 22 Sep 2023 21:05:52 -0500
From:   Rob Herring <robh@...nel.org>
To:     Simon Glass <sjg@...omium.org>
Cc:     linux-kernel@...r.kernel.org, Conor Dooley <conor+dt@...nel.org>,
        Nick Terrell <terrelln@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        devicetree@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Dhruva Gole <d-gole@...com>,
        Pratyush Yadav <ptyadav@...zon.de>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Rafał Miłecki <rafal@...ecki.pl>,
        Tom Rini <trini@...sulko.com>,
        U-Boot Mailing List <u-boot@...ts.denx.de>,
        linux-mtd@...ts.infradead.org
Subject: Re: [PATCH v2] dt-bindings: mtd: Add a schema for binman


On Fri, 22 Sep 2023 13:34:15 -0600, Simon Glass wrote:
> Binman[1] is a tool for creating firmware images. It allows you to
> combine various binaries and place them in an output file.
> 
> Binman uses a DT schema to describe an image, in enough detail that
> it can be automatically built from component parts, disassembled,
> replaced, listed, etc.
> 
> Images are typically stored in flash, which is why this binding is
> targeted at mtd. Previous discussion is at [2] [3].
> 
> This is only a starting point, an attempt to align on the best way to
> add this to the schema.
> 
> [1] https://u-boot.readthedocs.io/en/stable/develop/package/binman.html
> [2] https://lore.kernel.org/u-boot/20230821180220.2724080-3-sjg@chromium.org/
> [3] https://www.spinics.net/lists/devicetree/msg626149.html
> 
> Signed-off-by: Simon Glass <sjg@...omium.org>
> ---
> 
> Changes in v2:
> - Use "binman" for compatible instead of "u-boot,binman"
> - Significantly rework the patch
> - Use make dt_binding_check DT_SCHEMA_FILES=Documentation/../partitions
> 
>  .../bindings/mtd/partitions/binman.yaml       | 59 ++++++++++++++++++
>  .../mtd/partitions/binman/atf-bl31.yaml       | 43 +++++++++++++
>  .../bindings/mtd/partitions/binman/entry.yaml | 62 +++++++++++++++++++
>  .../mtd/partitions/binman/u-boot.yaml         | 43 +++++++++++++
>  .../bindings/mtd/partitions/partitions.yaml   |  1 +
>  MAINTAINERS                                   |  5 ++
>  6 files changed, 213 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mtd/partitions/binman.yaml
>  create mode 100644 Documentation/devicetree/bindings/mtd/partitions/binman/atf-bl31.yaml
>  create mode 100644 Documentation/devicetree/bindings/mtd/partitions/binman/entry.yaml
>  create mode 100644 Documentation/devicetree/bindings/mtd/partitions/binman/u-boot.yaml
> 

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:
Documentation/devicetree/bindings/mtd/partitions/binman/atf-bl31.example.dtb: /example-0/binman/partition@0: failed to match any schema with compatible: ['binman,entry']
Documentation/devicetree/bindings/mtd/partitions/binman/entry.example.dtb: /example-0/binman/partition@0: failed to match any schema with compatible: ['binman,entry']
Documentation/devicetree/bindings/mtd/partitions/binman/entry.example.dtb: /example-0/binman/partition@...000: failed to match any schema with compatible: ['binman,entry']

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20230922193417.1697379-1-sjg@chromium.org

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

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

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.