Re: [PATCH 1/2] dt-bindings: pinctrl: renesas: Add DT bindings for RZ/V2M pinctrl

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On Fri, May 20, 2022 at 04:40:50PM +0100, Phil Edworthy wrote:
> Add device tree binding documentation and header file for Renesas
> RZ/V2M pinctrl.
> 
> Signed-off-by: Phil Edworthy <phil.edworthy@xxxxxxxxxxx>
> Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> ---
>  .../pinctrl/renesas,rzv2m-pinctrl.yaml        | 174 ++++++++++++++++++
>  include/dt-bindings/pinctrl/rzv2m-pinctrl.h   |  23 +++
>  2 files changed, 197 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pinctrl/renesas,rzv2m-pinctrl.yaml
>  create mode 100644 include/dt-bindings/pinctrl/rzv2m-pinctrl.h
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/renesas,rzv2m-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/renesas,rzv2m-pinctrl.yaml
> new file mode 100644
> index 000000000000..305e836cf0a3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pinctrl/renesas,rzv2m-pinctrl.yaml
> @@ -0,0 +1,174 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/pinctrl/renesas,rzv2m-pinctrl.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Renesas RZ/V2M combined Pin and GPIO controller
> +
> +maintainers:
> +  - Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> +  - Phil Edworthy <phil.edworthy@xxxxxxxxxxx>
> +
> +description:
> +  The Renesas RZ/V2M SoC features a combined Pin and GPIO controller.
> +  Pin multiplexing and GPIO configuration is performed on a per-pin basis.
> +  Each port features up to 16 pins, each of them configurable for GPIO function
> +  (port mode) or in alternate function mode.
> +  Up to 8 different alternate function modes exist for each single pin.
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - const: renesas,r9a09g011-pinctrl # RZ/V2M

With only 1, you can drop 'oneOf' and 'items'.

> +
> +  reg:
> +    maxItems: 1
> +
> +  gpio-controller: true
> +
> +  '#gpio-cells':
> +    const: 2
> +    description:
> +      The first cell contains the global GPIO port index, constructed using the
> +      RZV2M_GPIO() helper macro in <dt-bindings/pinctrl/rzv2m-pinctrl.h> and the
> +      second cell represents consumer flag as mentioned in ../gpio/gpio.txt
> +      E.g. "RZV2M_GPIO(8, 1)" for P8_1.
> +
> +  gpio-ranges:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 39

Needs some description as to what all these are. If it is not all the 
same kind of interrupt, then each one has to be listed.

Rob



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