linux-kernel - Re: [PATCH 1/2] dt-bindings: leds: register-bit-led: Add active-low property

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Date:   Fri, 19 Aug 2022 09:46:56 +0300
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Pali Rohár <pali@...nel.org>,
        Pavel Machek <pavel@....cz>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Marek Behún <kabel@...nel.org>
Cc:     linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: leds: register-bit-led: Add active-low
 property

On 18/08/2022 20:25, Pali Rohár wrote:
> Allow to define inverted logic (0 - enable LED, 1 - disable LED) via
> active-low property.
> 
> Signed-off-by: Pali Rohár <pali@...nel.org>
> ---
>  Documentation/devicetree/bindings/leds/register-bit-led.yaml | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/leds/register-bit-led.yaml b/Documentation/devicetree/bindings/leds/register-bit-led.yaml
> index 79b8fc0f9d23..5c6ef26f1a94 100644
> --- a/Documentation/devicetree/bindings/leds/register-bit-led.yaml
> +++ b/Documentation/devicetree/bindings/leds/register-bit-led.yaml
> @@ -43,6 +43,11 @@ properties:
>          0x100000, 0x200000, 0x400000, 0x800000, 0x1000000, 0x2000000, 0x4000000,
>          0x8000000, 0x10000000, 0x20000000, 0x40000000, 0x80000000 ]
>  
> +  active-low:
> +    $ref: /schemas/types.yaml#/definitions/flag

This could be shorter: type: boolean

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Although the question is - where is the user of it?

Best regards,
Krzysztof