linux-kernel - Re: [PATCH v22 1/8] dt-bindings: clock: npcm845: Add reference 25m clock property

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Date: Tue, 9 Jan 2024 11:08:30 -0600
From: Rob Herring <robh@...nel.org>
To: Tomer Maimon <tmaimon77@...il.com>
Cc: mturquette@...libre.com, sboyd@...nel.org, krzysztof.kozlowski+dt@...aro.org, tali.perry1@...il.com, joel@....id.au, venture@...gle.com, yuenn@...gle.com, benjaminfair@...gle.com, openbmc@...ts.ozlabs.org, linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v22 1/8] dt-bindings: clock: npcm845: Add reference 25m
 clock  property

On Mon, Jan 08, 2024 at 03:54:14PM +0200, Tomer Maimon wrote:
> The NPCM8XX clock driver uses 25Mhz external clock, therefor adding

therefore

> refclk property.

'refclk' is not a property.

> 
> Signed-off-by: Tomer Maimon <tmaimon77@...il.com>
> ---
>  .../bindings/clock/nuvoton,npcm845-clk.yaml      | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/clock/nuvoton,npcm845-clk.yaml b/Documentation/devicetree/bindings/clock/nuvoton,npcm845-clk.yaml
> index b901ca13cd25..0b642bfce292 100644
> --- a/Documentation/devicetree/bindings/clock/nuvoton,npcm845-clk.yaml
> +++ b/Documentation/devicetree/bindings/clock/nuvoton,npcm845-clk.yaml
> @@ -21,6 +21,14 @@ properties:
>    reg:
>      maxItems: 1
>  
> +  clocks:
> +    items:
> +      - description: 25Mhz referance clock

reference

> +
> +  clock-names:
> +    items:
> +      - const: refclk
> +
>    '#clock-cells':
>      const: 1
>      description:
> @@ -30,12 +38,20 @@ properties:
>  required:
>    - compatible
>    - reg
> +  - clocks
> +  - clock-names

New required properties are an ABI break. That's fine if you explain why 
that's okay in the commit msg.


>    - '#clock-cells'
>  
>  additionalProperties: false
>  
>  examples:
>    - |
> +    refclk: refclk-25mhz {
> +        compatible = "fixed-clock";
> +        #clock-cells = <0>;
> +        clock-frequency = <25000000>;
> +    }; 

Examples don't need to show providers.

> +  
>      ahb {
>          #address-cells = <2>;
>          #size-cells = <2>;
> -- 
> 2.34.1
>