linux-kernel - Re: [PATCH v3 1/3] dt-bindings: qspi: cdns,qspi-nor: Add clocks for StarFive JH7110 SoC

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Message-ID: <4937f9c4-a0e0-fd37-d71b-e7488b2a1062@linaro.org>
Date:   Mon, 19 Jun 2023 14:17:58 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     William Qiu <william.qiu@...rfivetech.com>,
        devicetree@...r.kernel.org, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Cc:     Mark Brown <broonie@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Emil Renner Berthing <kernel@...il.dk>,
        Ziv Xu <ziv.xu@...rfivetech.com>
Subject: Re: [PATCH v3 1/3] dt-bindings: qspi: cdns,qspi-nor: Add clocks for
 StarFive JH7110 SoC

On 19/06/2023 10:35, William Qiu wrote:
> The QSPI controller needs three clock items to work properly on StarFive
> JH7110 SoC, so there is need to change the maxItems's value to 3. Other
> platforms do not have this constraint.
> 
> Signed-off-by: William Qiu <william.qiu@...rfivetech.com>
> Reviewed-by: Hal Feng <hal.feng@...rfivetech.com>
> Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
> ---
>  .../bindings/spi/cdns,qspi-nor.yaml           | 20 ++++++++++++++++++-
>  1 file changed, 19 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml b/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
> index b310069762dd..1b83cbb9a086 100644
> --- a/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
> +++ b/Documentation/devicetree/bindings/spi/cdns,qspi-nor.yaml
> @@ -26,6 +26,15 @@ allOf:
>              const: starfive,jh7110-qspi
>      then:
>        properties:
> +        clocks:
> +          maxItems: 3
> +
> +        clock-names:
> +          items:
> +            - const: ref
> +            - const: ahb
> +            - const: apb

You are duplicating top-level property. Define the items only in one
place. If this list is applicable to everything, then in top-level property.

> +
>          resets:
>            minItems: 2
>            maxItems: 3
> @@ -38,6 +47,9 @@ allOf:
>  
>      else:
>        properties:
> +        clocks:
> +          maxItems: 1

clock-names is missing. They must be in sync with clocks. What is the
first clock?

> +
>          resets:
>            maxItems: 2
>  
> @@ -70,7 +82,13 @@ properties:
>      maxItems: 1
>  
>    clocks:
> -    maxItems: 1
> +    maxItems: 3


You did not test it before sending. minItems is missing.

> +
> +  clock-names:
> +    items:
> +      - const: ref
> +      - const: ahb
> +      - const: apb


>  
>    cdns,fifo-depth:
>      description:

Best regards,
Krzysztof