linux-kernel - Re: [PATCH 1/2] dt-bindings: usb: mtk-xhci: add an optional frame count clock

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Date:   Mon, 3 Apr 2023 21:19:40 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Mathias Nyman <mathias.nyman@...el.com>,
        linux-usb@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Tianping Fang <tianping.fang@...iatek.com>
Subject: Re: [PATCH 1/2] dt-bindings: usb: mtk-xhci: add an optional frame
 count clock

On 03/04/2023 08:02, Chunfeng Yun wrote:
> Add optional clock 'frmcnt_ck' used on 4nm or advanced process SoC
> 
> Signed-off-by: Chunfeng Yun <chunfeng.yun@...iatek.com>
> ---
>  .../devicetree/bindings/usb/mediatek,mtk-xhci.yaml          | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml
> index c119caa9ad16..ee8167fbc541 100644
> --- a/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml
> +++ b/Documentation/devicetree/bindings/usb/mediatek,mtk-xhci.yaml
> @@ -77,6 +77,7 @@ properties:
>        - description: Mcu bus clock for register access
>        - description: DMA bus clock for data transfer
>        - description: controller clock
> +      - description: frame count clock
>  
>    clock-names:
>      minItems: 1
> @@ -86,14 +87,15 @@ properties:
>        - const: mcu_ck
>        - const: dma_ck
>        - const: xhci_ck
> +      - const: frmcnt_ck


Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

>  
>    assigned-clocks:
>      minItems: 1
> -    maxItems: 5
> +    maxItems: 6

But these should be dropped:
https://lore.kernel.org/linux-devicetree/20230403191850.374839-1-krzysztof.kozlowski@linaro.org/T/#t

>  
>    assigned-clock-parents:
>      minItems: 1
> -    maxItems: 5
> +    maxItems: 6
>  
>    phys:
>      description:

Best regards,
Krzysztof