linux-kernel - Re: [PATCH 1/3] dt-bindings: watchdog: Restrict timeout-sec to one number

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Message-ID: <aa552c02-b8f0-42ea-8075-415d193f8cb3@roeck-us.net>
Date: Mon, 20 Oct 2025 11:27:27 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
 Wim Van Sebroeck <wim@...ux-watchdog.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Lee Jones <lee@...nel.org>,
 Matti Vaittinen <mazziesaccount@...il.com>
Cc: linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org,
 Timothy Pearson <tpearson@...torengineering.com>
Subject: Re: [PATCH 1/3] dt-bindings: watchdog: Restrict timeout-sec to one
 number

On 10/20/25 09:52, Krzysztof Kozlowski wrote:
> Linux kernel expects only one number for the watchdog timeout and the
> type is an array (defined in property-units.yaml in DT schema), so
> restrict the property.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>

> ---
>   Documentation/devicetree/bindings/watchdog/watchdog.yaml | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/watchdog.yaml b/Documentation/devicetree/bindings/watchdog/watchdog.yaml
> index f0a584af1223..be0327f587eb 100644
> --- a/Documentation/devicetree/bindings/watchdog/watchdog.yaml
> +++ b/Documentation/devicetree/bindings/watchdog/watchdog.yaml
> @@ -24,6 +24,7 @@ properties:
>       pattern: "^(timer|watchdog)(@.*|-([0-9]|[1-9][0-9]+))?$"
>   
>     timeout-sec:
> +    maxItems: 1
>       description:
>         Contains the watchdog timeout in seconds.
>   
>