[PATCH 1/2] dt-bindings: rtc: nct3018y: add nuvoton,ctrl-reg-val property

[Krzysztof Kozlowski]

On 09/04/2026 09:21, David Wang wrote:
> Add "nuvoton,ctrl-reg-val" vendor property to allow optional
> initialization of the RTC control register (0x0A).
> 
> This allows platform-specific configurations like 24h mode and
> write ownership to be defined via Device Tree.
> 
> Signed-off-by: David Wang <tomato1220 at gmail.com>
> ---
>  Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml b/Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml
> index 4f9b5604acd9..0984dfb77170 100644
> --- a/Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml
> +++ b/Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml
> @@ -24,6 +24,10 @@ properties:
>  
>    reset-source: true
>  
> +  nuvoton,ctrl-reg-val:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description: Initial value for the control register (0x0A).

24h mode is not a property of a board. I don't know what "write
ownership" is.

Best regards,
Krzysztof