[PATCH 2/8] dt-bindings: connector: Add MikorBUS connector

[Rob Herring (Arm)]

On Wed, 11 Sep 2024 19:57:19 +0530, Ayush Singh wrote:
> Add DT bindings for mikroBUS interface. MikroBUS [0] is an open standard
> developed by MikroElektronika for connecting add-on boards to
> microcontrollers or microprocessors.
> 
> MikroBUS connector node will optionally act as nexus nodes for routing
> GPIOs and PWM.
> 
> For GPIOs, the following pin numbering should be followed:
> 
>   0: PWM
>   1: INT
>   2: RX
>   3: TX
>   4: SCL
>   5: SDA
>   6: MOSI
>   7: MISO
>   8: SCK
>   9: CS
>   10: RST
>   11: AN
> 
> For PWM, the PWM pin should be on channel 0.
> 
> I am not quite sure how to deal with the nexus node properties
> (#gpio-cells, gpio-map, gpio-map-mask, gpio-map-pass-thru) since they
> seem to conflict with upstream gpio schema (gpio-controller is a
> dependency of #gpio-cells).
> 
> [0]: https://www.mikroe.com/
> 
> Signed-off-by: Ayush Singh <ayush at beagleboard.org>
> ---
>  .../bindings/connector/mikrobus-connector.yaml     | 40 ++++++++++++++++++++++
>  MAINTAINERS                                        |  5 +++
>  2 files changed, 45 insertions(+)
> 

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

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/connector/mikrobus-connector.example.dtb: mikrobus-connector0: 'gpio-controller' is a dependency of '#gpio-cells'
	from schema $id: http://devicetree.org/schemas/gpio/gpio.yaml#

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20240911-mikrobus-dt-v1-2-3ded4dc879e7@beagleboard.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.