linux-kernel - Re: [PATCH 3/3] dt-bindings: rtc: add binding for RV8063

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Message-ID: <20250410211351.GA1076944-robh@kernel.org>
Date: Thu, 10 Apr 2025 16:13:51 -0500
From: Rob Herring <robh@...nel.org>
To: Antoni Pokusinski <apokusinski01@...il.com>
Cc: alexandre.belloni@...tlin.com, krzk+dt@...nel.org, conor+dt@...nel.org,
	alexander.stein@...tq-group.com, linux-rtc@...r.kernel.org,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 3/3] dt-bindings: rtc: add binding for RV8063

On Mon, Apr 07, 2025 at 09:35:21PM +0200, Antoni Pokusinski wrote:
> Microcrystal RV8063 is a real-time clock module with SPI interface.
> 
> Signed-off-by: Antoni Pokusinski <apokusinski01@...il.com>
> ---
>  .../devicetree/bindings/rtc/nxp,pcf85063.yaml | 33 ++++++++++++++++++-
>  1 file changed, 32 insertions(+), 1 deletion(-)

Bindings come before users (driver).

> 
> diff --git a/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml b/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
> index 2f892f8640d1..cb31c7619d66 100644
> --- a/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
> +++ b/Documentation/devicetree/bindings/rtc/nxp,pcf85063.yaml
> @@ -12,6 +12,7 @@ maintainers:
>  properties:
>    compatible:
>      enum:
> +      - microcrystal,rv8063
>        - microcrystal,rv8263
>        - nxp,pcf85063
>        - nxp,pcf85063a
> @@ -44,7 +45,12 @@ properties:
>  
>    wakeup-source: true
>  
> +  spi-cs-high: true
> +
> +  spi-3wire: true
> +
>  allOf:
> +  - $ref: /schemas/spi/spi-peripheral-props.yaml#
>    - $ref: rtc.yaml#
>    - if:
>        properties:
> @@ -52,6 +58,7 @@ allOf:
>            contains:
>              enum:
>                - microcrystal,rv8263
> +              - microcrystal,rv8063
>      then:
>        properties:
>          quartz-load-femtofarads: false
> @@ -65,12 +72,23 @@ allOf:
>        properties:
>          quartz-load-femtofarads:
>            const: 7000
> +  - if:
> +      properties:
> +        compatible:
> +          not:
> +            contains:
> +              enum:
> +                - microcrystal,rv8063
> +    then:
> +      properties:
> +        spi-cs-high: false
> +        spi-3wire: false
>  
>  required:
>    - compatible
>    - reg
>  
> -additionalProperties: false
> +unevaluatedProperties: false
>  
>  examples:
>    - |
> @@ -90,3 +108,16 @@ examples:
>            };
>          };
>        };
> +
> +  - |
> +    spi {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        rtc@0 {
> +          compatible = "microcrystal,rv8063";
> +          reg = <0>;
> +          spi-cs-high;
> +          spi-3wire;
> +        };
> +    };
> -- 
> 2.25.1
>