Re: [PATCH 1/2] dt-bindings: rtc: nxp,pcf85063: add 'no-battery' property

From: Frank Li
Date: Thu Apr 10 2025 - 10:49:23 EST


On Thu, Apr 10, 2025 at 11:25:47AM +0300, Ciprian Costea wrote:
> From: Ciprian Marian Costea <ciprianmarian.costea@xxxxxxxxxxx>
>
> In case the RTC is not linked to any battery, the oscillator will
> be stopped at startup, triggering a SW reset command for the PCF85063 RTC.
> For this setup, introduce 'no-battery' property which can be used to
> manually start the oscillator.
>
> Co-developed-by: Larisa Grigore <larisa.grigore@xxxxxxx>
> Signed-off-by: Larisa Grigore <larisa.grigore@xxxxxxx>
> Signed-off-by: Ciprian Marian Costea <ciprianmarian.costea@xxxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml b/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
> index 2f892f8640d1..b342eb13fb2e 100644
> --- a/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
> +++ b/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
> @@ -36,6 +36,11 @@ properties:
> enum: [7000, 12500]
> default: 7000
>
> + no-battery:
> + description: Used in case the RTC is not linked to any battery so the
> + oscillator is stopped at startup.
> + type: boolean

Can you use optional regulator such as, vbat-supply?

Frank

> +
> clock:
> $ref: /schemas/clock/fixed-clock.yaml
> description:
> --
> 2.45.2
>