linux-kernel - Re: [PATCH 2/7] dt-bindings: soc: add binding for i.MX8MN DISP blk-ctrl

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Date:   Wed, 06 Oct 2021 08:16:59 -0500
From:   Rob Herring <robh@...nel.org>
To:     Adam Ford <aford173@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Lucas Stach <l.stach@...gutronix.de>,
        Shawn Guo <shawnguo@...nel.org>, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, aford@...conembedded.com,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/7] dt-bindings: soc: add binding for i.MX8MN DISP blk-ctrl

On Tue, 05 Oct 2021 19:04:59 -0500, Adam Ford wrote:
> This adds the DT binding for the i.MX8MN DISP blk-ctrl.
> 
> Signed-off-by: Adam Ford <aford173@...il.com>
> ---
>  .../soc/imx/fsl,imx8mn-disp-blk-ctrl.yaml     | 97 +++++++++++++++++++
>  1 file changed, 97 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/soc/imx/fsl,imx8mn-disp-blk-ctrl.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:
./Documentation/devicetree/bindings/soc/imx/fsl,imx8mn-disp-blk-ctrl.yaml:78:1: [error] syntax error: found character '\t' that cannot start any token (syntax)

dtschema/dtc warnings/errors:
make[1]: *** Deleting file 'Documentation/devicetree/bindings/soc/imx/fsl,imx8mn-disp-blk-ctrl.example.dts'
Traceback (most recent call last):
  File "/usr/local/bin/dt-extract-example", line 45, in <module>
    binding = yaml.load(open(args.yamlfile, encoding='utf-8').read())
  File "/usr/local/lib/python3.8/dist-packages/ruamel/yaml/main.py", line 434, in load
    return constructor.get_single_data()
  File "/usr/local/lib/python3.8/dist-packages/ruamel/yaml/constructor.py", line 120, in get_single_data
    node = self.composer.get_single_node()
  File "_ruamel_yaml.pyx", line 706, in _ruamel_yaml.CParser.get_single_node
  File "_ruamel_yaml.pyx", line 724, in _ruamel_yaml.CParser._compose_document
  File "_ruamel_yaml.pyx", line 775, in _ruamel_yaml.CParser._compose_node
  File "_ruamel_yaml.pyx", line 889, in _ruamel_yaml.CParser._compose_mapping_node
  File "_ruamel_yaml.pyx", line 773, in _ruamel_yaml.CParser._compose_node
  File "_ruamel_yaml.pyx", line 848, in _ruamel_yaml.CParser._compose_sequence_node
  File "_ruamel_yaml.pyx", line 904, in _ruamel_yaml.CParser._parse_next_event
ruamel.yaml.scanner.ScannerError: while scanning a block scalar
  in "<unicode string>", line 70, column 5
found a tab character where an indentation space is expected
  in "<unicode string>", line 78, column 1
make[1]: *** [Documentation/devicetree/bindings/Makefile:20: Documentation/devicetree/bindings/soc/imx/fsl,imx8mn-disp-blk-ctrl.example.dts] Error 1
make[1]: *** Waiting for unfinished jobs....
./Documentation/devicetree/bindings/soc/imx/fsl,imx8mn-disp-blk-ctrl.yaml:  while scanning a block scalar
  in "<unicode string>", line 70, column 5
found a tab character where an indentation space is expected
  in "<unicode string>", line 78, column 1
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/soc/imx/fsl,imx8mn-disp-blk-ctrl.yaml: ignoring, error parsing file
warning: no schema found in file: ./Documentation/devicetree/bindings/soc/imx/fsl,imx8mn-disp-blk-ctrl.yaml
make: *** [Makefile:1441: dt_binding_check] Error 2

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/1536963

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

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.