Re: [PATCH v2] dt-bindings: devicetree: explain how to get CS active-high

[Rob Herring (Arm)]

On Wed, 11 Dec 2024 17:50:50 +0100, Iker Pedrosa wrote:
> The current documentation does not clearly explain how to invert the SPI
> CS signal to make it active-high. This makes it very difficult to
> understand.
> 
> This patch adds a simple explanation on how to set the CS line in
> active-high and adds an example to make it easier for users who need
> that setup for their SPI peripherals.
> 
> Link: https://forums.raspberrypi.com/viewtopic.php?t=378222
> Signed-off-by: Iker Pedrosa <ikerpedrosam@xxxxxxxxx>
> ---
>  .../bindings/spi/spi-controller.yaml          | 25 +++++++++++++++++++
>  1 file changed, 25 insertions(+)
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/spi/spi-controller.example.dtb: /example-1/spi@20204000/display@0: failed to match any schema with compatible: ['sitronix,st7920']

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20241211165054.254164-1-ikerpedrosam@xxxxxxxxx

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.