linux-kernel - Re: [PATCH v5 3/6] dt-bindings: touchscreen: add touchscreen-glitch-threshold-ns property

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Message-ID: <20250918200445.GA2529753-robh@kernel.org>
Date: Thu, 18 Sep 2025 15:04:45 -0500
From: Rob Herring <robh@...nel.org>
To: Dario Binacchi <dario.binacchi@...rulasolutions.com>
Cc: linux-kernel@...r.kernel.org, Frank Li <Frank.Li@....com>,
	linux-amarula@...rulasolutions.com,
	Conor Dooley <conor.dooley@...rochip.com>,
	Conor Dooley <conor+dt@...nel.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Javier Carrasco <javier.carrasco@...fvision.net>,
	Jeff LaBundy <jeff@...undy.com>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	devicetree@...r.kernel.org, linux-input@...r.kernel.org
Subject: Re: [PATCH v5 3/6] dt-bindings: touchscreen: add
 touchscreen-glitch-threshold-ns property

On Thu, Sep 18, 2025 at 05:52:31PM +0200, Dario Binacchi wrote:
> Add support for glitch threshold configuration. A detected signal is valid
> only if it lasts longer than the set threshold; otherwise, it is regarded
> as a glitch.
> 
> Signed-off-by: Dario Binacchi <dario.binacchi@...rulasolutions.com>
> Acked-by: Conor Dooley <conor.dooley@...rochip.com>
> 
> ---
> 
> Changes in v5:
> - Add Acked-by tag of Conor Dooley
> 
> Changes in v2:
> - Added in v2.
> 
>  .../devicetree/bindings/input/touchscreen/touchscreen.yaml    | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml
> index 3e3572aa483a..a60b4d08620d 100644
> --- a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml
> +++ b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml
> @@ -206,6 +206,10 @@ properties:
>  
>          unevaluatedProperties: false
>  
> +  touchscreen-glitch-threshold-ns:
> +    description: Minimum duration in nanoseconds a signal must remain stable
> +      to be considered valid.

What's wrong with debounce-delay-ms?