Re: [PATCH v2 4/7] dt-bindings: input: matrix_keypad - add missing property

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On Tue, Nov 05, 2024 at 02:03:19PM +0100, Markus Burri wrote:
> Add missing property 'gpio-activelow' to DT schema.

What do you mean "missing property"? Why isn't it sufficient to mark the
GPIOs as GPIO_ACTIVE_LOW in the various -gpios properties?

> 
> Signed-off-by: Markus Burri <markus.burri@xxxxxx>
> ---
>  .../devicetree/bindings/input/gpio-matrix-keypad.yaml        | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml b/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml
> index 745652b..9ea66b3 100644
> --- a/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml
> +++ b/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml
> @@ -51,6 +51,11 @@ properties:
>        (Legacy property supported: "linux,wakeup")
>      default: false
>  
> +  gpio-activelow:
> +    type: boolean
> +    description: The GPIOs are low active.
> +    default: false

What you want is a flag, not a boolean here btw. Flags you can check for
the presence of, booleans you cannot.

> +
>    debounce-delay-ms:
>      description: Debounce interval in milliseconds.
>      default: 0
> -- 
> 2.39.5
> 

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