linux-kernel - Re: [PATCH 1/2] dt-bindings: crypto: fsl,sec-v4.0-mon: add optional force shutdown time property

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Message-ID: <20250314-omniscient-screeching-lyrebird-d7ee1d@krzk-bin>
Date: Fri, 14 Mar 2025 09:44:03 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Ian Ray <ian.ray@...ealthcare.com>
Cc: dmitry.torokhov@...il.com, robh@...nel.org, krzk+dt@...nel.org, 
	conor+dt@...nel.org, linux-input@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: crypto: fsl,sec-v4.0-mon: add optional
 force shutdown time property

On Thu, Mar 13, 2025 at 01:44:52PM +0200, Ian Ray wrote:
> Add an optional property to configure the force shutdown time.

And why is this hardware property? You described the desired Linux
feature or behavior, not the actual hardware. The bindings are about the
latter, so instead you need to rephrase the property and its description
to match actual hardware capabilities/features/configuration etc.


> 
> Signed-off-by: Ian Ray <ian.ray@...ealthcare.com>
> ---
>  .../devicetree/bindings/crypto/fsl,sec-v4.0-mon.yaml      | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0-mon.yaml b/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0-mon.yaml
> index e879bc0be8e2..ee282c352535 100644
> --- a/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0-mon.yaml
> +++ b/Documentation/devicetree/bindings/crypto/fsl,sec-v4.0-mon.yaml
> @@ -111,6 +111,14 @@ properties:
>          maxItems: 1
>          default: 116
>  
> +      force-shutdown-time:

Missing unit suffix

Missing vendor prefix

> +        description: |

Do not need '|' unless you need to preserve formatting.

> +          Configure the long-press force shutdown time.
> +          Setting this value to zero disables the long-press detection.
> +        $ref: /schemas/types.yaml#/definitions/uint32
> +        enum: [0, 5, 10, 15]
> +        default: 5

Why existing power-off-time-sec does not work? Isn't input schema
already referenced for this node? Looks like you are duplicating things
for no gain.

Best regards,
Krzysztof