linux-kernel - Re: [PATCH 2/4] dt-bindings: usb: dwc2: add utmi optional clock

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Date:   Thu, 13 Apr 2023 09:46:38 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Fabrice Gasnier <fabrice.gasnier@...s.st.com>, hminas@...opsys.com,
        gregkh@...uxfoundation.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, alexandre.torgue@...s.st.com
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        amelie.delaunay@...s.st.com
Subject: Re: [PATCH 2/4] dt-bindings: usb: dwc2: add utmi optional clock

On 12/04/2023 17:18, Fabrice Gasnier wrote:
> utmi clock is typically provided by PHY output. Add this optional clock,
> as the core could use other clocks depending on the SoC where it's used.
> This is needed on stm32mp15, when using the integrated full-speed PHY.
> 
> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...s.st.com>
> ---
>  Documentation/devicetree/bindings/usb/dwc2.yaml | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/usb/dwc2.yaml b/Documentation/devicetree/bindings/usb/dwc2.yaml
> index 371ba93f3ce5..6f3c2d319b9b 100644
> --- a/Documentation/devicetree/bindings/usb/dwc2.yaml
> +++ b/Documentation/devicetree/bindings/usb/dwc2.yaml
> @@ -75,11 +75,14 @@ properties:
>      maxItems: 1
>  
>    clocks:
> -    maxItems: 1
> +    minItems: 1
> +    maxItems: 2
>  
>    clock-names:
>      items:
>        - const: otg
> +      - const: utmi_clk

Just: utmi

Best regards,
Krzysztof