Re: [PATCH v3 3/9] dt-bindings: media: sun6i-a31-csi: Add MIPI CSI-2 input port

[Rob Herring <robh@kernel.org>]

On Wed, 02 Mar 2022 23:07:33 +0100, Paul Kocialkowski wrote:
> The A31 CSI controller supports two distinct input interfaces:
> parallel and an external MIPI CSI-2 bridge. The parallel interface
> is often connected to a set of hardware pins while the MIPI CSI-2
> bridge is an internal FIFO-ish link. As a result, these two inputs
> are distinguished as two different ports.
> 
> Note that only one of the two may be present on a controller instance.
> For example, the V3s has one controller dedicated to MIPI-CSI2 and one
> dedicated to parallel.
> 
> Update the binding with an explicit ports node that holds two distinct
> port nodes: one for parallel input and one for MIPI CSI-2.
> 
> This is backward-compatible with the single-port approach that was
> previously taken for representing the parallel interface port, which
> stays enumerated as fwnode port 0.
> 
> Note that additional ports may be added in the future, especially to
> support feeding the CSI controller's output to the ISP.
> 
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
> Reviewed-by: Rob Herring <robh@kernel.org>
> Acked-by: Maxime Ripard <mripard@kernel.org>
> ---
>  .../media/allwinner,sun6i-a31-csi.yaml        | 66 +++++++++++++++----
>  1 file changed, 53 insertions(+), 13 deletions(-)
> 

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/media/allwinner,sun6i-a31-csi.yaml:88:9: [warning] wrong indentation: expected 10 but found 8 (indentation)
./Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml:90:9: [warning] wrong indentation: expected 10 but found 8 (indentation)
./Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml:102:5: [warning] wrong indentation: expected 6 but found 4 (indentation)
./Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml:104:5: [warning] wrong indentation: expected 6 but found 4 (indentation)

dtschema/dtc warnings/errors:
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.example.dt.yaml: csi@1cb4000: ports:port@0: 'reg' does not match any of the regexes: 'pinctrl-[0-9]+'
	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/media/allwinner,sun6i-a31-csi.yaml

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/1600105

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.