linux-kernel - Re: [PATCH v5 09/22] dt-bindings: qcom-qce: Move 'clocks' to optional properties

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Date:   Sat, 13 Nov 2021 14:02:14 -0600
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Bhupesh Sharma <bhupesh.sharma@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-crypto@...r.kernel.org,
        bhupesh.linux@...il.com, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, robh+dt@...nel.org, agross@...nel.org,
        herbert@...dor.apana.org.au, davem@...emloft.net,
        stephan@...hold.net, Thara Gopinath <thara.gopinath@...aro.org>
Subject: Re: [PATCH v5 09/22] dt-bindings: qcom-qce: Move 'clocks' to
 optional properties

On Wed 10 Nov 04:59 CST 2021, Bhupesh Sharma wrote:

> QCom QCE block on some SoCs like ipq6018 don't
> require clock as the required property, so the properties
> 'clocks' and 'clock-names' can be moved instead in the dt-bindings
> to the 'optional' properties section.
> 
> Otherwise, running 'make dtbs_check' leads to the following
> errors:
> 
> dma-controller@...4000: clock-names:0: 'bam_clk' was expected
> 	arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dt.yaml
> 
> dma-controller@...4000: clock-names: Additional items are not allowed ('bam_clk' was unexpected)
> 	arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dt.yaml
> 
> dma-controller@...4000: clock-names: ['iface_clk', 'bam_clk'] is too long
> 	arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dt.yaml
> 
> dma-controller@...4000: clocks: [[9, 138], [9, 137]] is too long
> 	arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dt.yaml
> 
> Cc: Thara Gopinath <thara.gopinath@...aro.org>
> Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
> Cc: Rob Herring <robh+dt@...nel.org>
> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@...aro.org>
> ---
>  Documentation/devicetree/bindings/crypto/qcom-qce.yaml | 2 --
>  1 file changed, 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/crypto/qcom-qce.yaml b/Documentation/devicetree/bindings/crypto/qcom-qce.yaml
> index 30deaa0fa93d..f35bdb9ee7a8 100644
> --- a/Documentation/devicetree/bindings/crypto/qcom-qce.yaml
> +++ b/Documentation/devicetree/bindings/crypto/qcom-qce.yaml
> @@ -53,8 +53,6 @@ properties:
>  required:
>    - compatible
>    - reg
> -  - clocks
> -  - clock-names

I would prefer that we make this conditional on the compatible. That
said, if this only applies to ipq6018 I think we should double check the
fact that there's no clock there...

For the sake of making progress on the series, I think you should omit
this patch from the next version.

Regards,
Bjorn

>    - dmas
>    - dma-names
>  
> -- 
> 2.31.1
>