Re: [Patch Resend v1 5/8] dt-bindings: arm: tegra: Add NVIDIA Tegra234 CBB2.0 binding

[Rob Herring <robh@kernel.org>]

On Thu, 09 Dec 2021 22:52:03 +0530, Sumit Gupta wrote:
> Add device-tree binding documentation to represent CBB2.0 (Control
> Backbone) error handling driver. The driver prints debug information
> about failed transaction on receiving interrupt from CBB2.0.
> 
> Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
> ---
>  .../arm/tegra/nvidia,tegra234-cbb.yaml        | 80 +++++++++++++++++++
>  1 file changed, 80 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/arm/tegra/nvidia,tegra234-cbb.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/arm/tegra/nvidia,tegra234-cbb.yaml:73:1: [error] syntax error: found character '\t' that cannot start any token (syntax)

dtschema/dtc warnings/errors:
make[1]: *** Deleting file 'Documentation/devicetree/bindings/arm/tegra/nvidia,tegra234-cbb.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 119, 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 71, column 5
found a tab character where an indentation space is expected
  in "<unicode string>", line 73, column 1
make[1]: *** [Documentation/devicetree/bindings/Makefile:25: Documentation/devicetree/bindings/arm/tegra/nvidia,tegra234-cbb.example.dts] Error 1
make[1]: *** Waiting for unfinished jobs....
./Documentation/devicetree/bindings/arm/tegra/nvidia,tegra234-cbb.yaml:  while scanning a block scalar
  in "<unicode string>", line 71, column 5
found a tab character where an indentation space is expected
  in "<unicode string>", line 73, column 1
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/arm/tegra/nvidia,tegra234-cbb.yaml: ignoring, error parsing file
warning: no schema found in file: ./Documentation/devicetree/bindings/arm/tegra/nvidia,tegra234-cbb.yaml
make: *** [Makefile:1413: dt_binding_check] Error 2

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/1565951

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.