Re: [PATCH V3 1/2] dt-bindings: clk: versaclock5: Add optional load capacitance property

From: Rob Herring
Date: Wed Feb 10 2021 - 15:20:17 EST


On Sun, Feb 07, 2021 at 12:51:38PM -0600, Adam Ford wrote:
> There are two registers which can set the load capacitance for
> XTAL1 and XTAL2. These are optional registers when using an
> external crystal. Since XTAL1 and XTAL2 will set to the same value,
> update the binding to support a single property called
> xtal-load-femtofarads.
>
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
> ---
> V3: No Change
> V2: No Change
>
> A couple people suggested that I not use the $ref, but without it,
> the bindings check failed with errors.
>
> diff --git a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
> index 2ac1131fd922..c268debe5b8d 100644
> --- a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
> +++ b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
> @@ -59,6 +59,12 @@ properties:
> minItems: 1
> maxItems: 2
>
> + idt,xtal-load-femtofarads:
> + $ref: /schemas/types.yaml#/definitions/uint32

Don't need a type with standard unit suffix.

> + minimum: 9000
> + maximum: 22760
> + description: Optional load capacitor for XTAL1 and XTAL2
> +
> patternProperties:
> "^OUT[1-4]$":
> type: object
> --
> 2.25.1
>