linux-kernel - Re: [PATCH 1/5] dt-bindings: phy: cadence-torrent: Add second optional input reference clock

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Date:   Wed, 26 Jul 2023 11:05:37 -0600
From:   Rob Herring <robh@...nel.org>
To:     Swapnil Jakhade <sjakhade@...ence.com>
Cc:     vkoul@...nel.org, kishon@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        linux-phy@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, mparab@...ence.com, rogerq@...nel.org,
        s-vadapalli@...com
Subject: Re: [PATCH 1/5] dt-bindings: phy: cadence-torrent: Add second
 optional input reference clock

On Mon, Jul 24, 2023 at 04:59:58PM +0200, Swapnil Jakhade wrote:
> Torrent(SD0801) PHY supports two input reference clocks. Update bindings
> to support dual reference clock multilink configurations.
> 
> Signed-off-by: Swapnil Jakhade <sjakhade@...ence.com>
> ---
>  .../bindings/phy/phy-cadence-torrent.yaml     | 23 +++++++++++++------
>  1 file changed, 16 insertions(+), 7 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml b/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml
> index dfb31314face..ddb86ee0cebf 100644
> --- a/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml
> +++ b/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml
> @@ -33,16 +33,25 @@ properties:
>  
>    clocks:
>      minItems: 1
> -    maxItems: 2
> +    maxItems: 3
>      description:
> -      PHY reference clock for 1 item. Must contain an entry in clock-names.
> -      Optional Parent to enable output reference clock.
> +      PHY input reference clocks (refclk & refclk1).
> +      Optional Parent to enable output reference clock (phy_en_refclk).
>  
>    clock-names:
> -    minItems: 1
> -    items:
> -      - const: refclk
> -      - const: phy_en_refclk
> +    oneOf:
> +      - items:
> +          - const: refclk
> +      - items:
> +          - const: refclk
> +          - const: phy_en_refclk
> +      - items:
> +          - const: refclk
> +          - const: refclk1
> +      - items:
> +          - const: refclk
> +          - const: refclk1
> +          - const: phy_en_refclk

Can be simplified to:

minItems: 1
items:
  - const: refclk
  - enum: [ refclk1, phy_en_refclk ]
  - const: phy_en_refclk

*-names already requires each entry to be unique, so you don't have to 
worry about that case.

Rob