linux-kernel - Re: [PATCH 1/3] dt-bindings: rtc: add trickle-voltage-mV

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Date:   Tue, 29 Sep 2020 12:47:19 -0500
From:   Rob Herring <robh@...nel.org>
To:     Alexandre Belloni <alexandre.belloni@...tlin.com>
Cc:     Alessandro Zummo <a.zummo@...ertech.it>, linux-rtc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] dt-bindings: rtc: add trickle-voltage-mV

On Mon, Sep 21, 2020 at 07:17:32PM +0200, Alexandre Belloni wrote:
> Some RTCs have a trickle charge that is able to output different voltages
> depending on the type of the connected auxiliary power (battery, supercap,
> ...). Add a property allowing to specify the necessary voltage.
> 
> Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
> ---
>  Documentation/devicetree/bindings/rtc/rtc.yaml | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml
> index ee237b2ed66a..93f04d5e5307 100644
> --- a/Documentation/devicetree/bindings/rtc/rtc.yaml
> +++ b/Documentation/devicetree/bindings/rtc/rtc.yaml
> @@ -42,6 +42,13 @@ properties:
>        Selected resistor for trickle charger. Should be given
>        if trickle charger should be enabled.
>  
> +  trickle-voltage-mV:

Use standard unit suffix.

> +    $ref: /schemas/types.yaml#/definitions/uint32

And then you don't need a type.

> +    description:
> +      Selected voltage for trickle charger. Should be given
> +      if trickle charger should be enabled and the trickle voltage is different
> +      from the RTC main power supply.
> +
>    wakeup-source:
>      $ref: /schemas/types.yaml#/definitions/flag
>      description:
> -- 
> 2.26.2
>