linux-kernel - Re: [PATCH v5 5/7] dt-bindings: input: matrix_keypad

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Z7YJ-uYT-Ffb67bM@mt.com>
Date: Wed, 19 Feb 2025 17:42:34 +0100
From: Manuel Traut <manuel.traut@...com>
To: Markus Burri <markus.burri@...com>
Cc: linux-kernel@...r.kernel.org,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Marek Vasut <marek.vasut@...il.com>, linux-input@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: Re: [PATCH v5 5/7] dt-bindings: input: matrix_keypad - add settle
 time after enable all columns

On Fri, Jan 10, 2025 at 06:49:04AM +0100, Markus Burri wrote:
> Matrix_keypad with high capacity need a longer settle time after enable
> all columns.
> Add optional property to specify the settle time
> 
> Signed-off-by: Markus Burri <markus.burri@...com>
> Reviewed-by: Rob Herring (Arm) <robh@...nel.org>

Reviewed-by: Manuel Traut <manuel.traut@...com>

> ---
>  .../devicetree/bindings/input/gpio-matrix-keypad.yaml       | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml b/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml
> index 9c91224..dc08d39 100644
> --- a/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml
> +++ b/Documentation/devicetree/bindings/input/gpio-matrix-keypad.yaml
> @@ -57,6 +57,12 @@ properties:
>        before we can scan keypad after activating column gpio.
>      default: 0
>  
> +  all-cols-on-delay-us:
> +    description:
> +      Delay, measured in microseconds, that is needed
> +      after activating all column gpios.
> +    default: 0
> +
>    drive-inactive-cols:
>      type: boolean
>      description:
> -- 
> 2.39.5
>