Re: [PATCH] dt-bindings: gpio: add common consumer GPIO lines

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On Tue, Mar 15, 2022 at 09:37:23AM +0100, Krzysztof Kozlowski wrote:
> Typical GPIO lines like enable, powerdown, reset or wakeup are not
> documented as common, which leads to new variations of these (e.g.
> pwdn-gpios).  Add a common schema which serves also as a documentation
> for preferred naming.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
> ---
>  .../bindings/gpio/gpio-consumer-common.yaml   | 36 +++++++++++++++++++
>  1 file changed, 36 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml
> 
> diff --git a/Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml b/Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml
> new file mode 100644
> index 000000000000..098dc913f9e5
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml
> @@ -0,0 +1,36 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/gpio/gpio-consumer-common.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Common GPIO lines
> +
> +maintainers:
> +  - Bartosz Golaszewski <brgl@xxxxxxxx>
> +  - Linus Walleij <linus.walleij@xxxxxxxxxx>
> +
> +# do not select this schema for GPIO hogs
> +select:
> +  properties:
> +    gpio-hog: false

'select: true' should be sufficient here.

> +
> +properties:
> +  enable-gpios:
> +    $ref: /schemas/types.yaml#/definitions/phandle-array

Perhaps some sort of description on these.

I think these are always a single line, so 'maxItems: 1'.

> +
> +  reset-gpios:
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +
> +  powerdown-gpios:
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +
> +  pwdn-gpios:
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +    description: Use powerdown-gpios
> +    deprecated: true
> +
> +  wakeup-gpios:
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +
> +additionalProperties: true
> -- 
> 2.32.0
> 
> 



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