Re: [PATCH 1/4] dt-bindings: pinctrl: Document Tegra186 pin controllers

[Rob Herring]

On Tue, Apr 29, 2025 at 04:33:30PM -0500, Aaron Kling wrote:
> Tegra186 contains two pin controllers. Document their compatible strings
> and describe the list of pins and functions that they provide.
> 
> Signed-off-by: Aaron Kling <webgeek1234@xxxxxxxxx>
> ---
>  .../bindings/pinctrl/nvidia,tegra186-pinmux.yaml   | 285 +++++++++++++++++++++
>  1 file changed, 285 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/nvidia,tegra186-pinmux.yaml b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra186-pinmux.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..2fcf42869d7b68671ae3ce78bd33787901ae9203
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/nvidia,tegra186-pinmux.yaml
> @@ -0,0 +1,285 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pinctrl/nvidia,tegra186-pinmux.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: NVIDIA Tegra186 Pinmux Controller
> +
> +maintainers:
> +  - Thierry Reding <thierry.reding@xxxxxxxxx>
> +  - Jon Hunter <jonathanh@xxxxxxxxxx>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - nvidia,tegra186-pinmux
> +      - nvidia,tegra186-pinmux-aon
> +
> +  reg:
> +    items:
> +      - description: pinmux registers
> +
> +patternProperties:
> +  "^pinmux(-[a-z0-9-_]+)?$":

Is there really a case for having just 'pinmux'? Seems like there would 
always be multiple nodes.

Don't use '_' in node names.

> +    type: object
> +
> +    # pin groups
> +    additionalProperties:

Define a node name pattern here instead. Allowing any name was for 
existing bindings.

> +      $ref: nvidia,tegra-pinmux-common.yaml
> +      unevaluatedProperties: false
> +      properties:
> +        nvidia,function: