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

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Hi Bjorn,

On Sun, 14 Nov 2021 at 01:32, Bjorn Andersson
<bjorn.andersson@xxxxxxxxxx> wrote:
>
> 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@7984000: clock-names:0: 'bam_clk' was expected
> >       arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dt.yaml
> >
> > dma-controller@7984000: clock-names: Additional items are not allowed ('bam_clk' was unexpected)
> >       arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dt.yaml
> >
> > dma-controller@7984000: clock-names: ['iface_clk', 'bam_clk'] is too long
> >       arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dt.yaml
> >
> > dma-controller@7984000: clocks: [[9, 138], [9, 137]] is too long
> >       arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dt.yaml
> >
> > Cc: Thara Gopinath <thara.gopinath@xxxxxxxxxx>
> > Cc: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> > Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> > Signed-off-by: Bhupesh Sharma <bhupesh.sharma@xxxxxxxxxx>
> > ---
> >  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.

Without this patch, 'make dtbs_check' fails with the following error:
dma-controller@7984000: clock-names:0: 'bam_clk' was expected
        arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dt.yaml

dma-controller@7984000: clock-names: Additional items are not allowed
('bam_clk' was unexpected)
        arch/arm64/boot/dts/qcom/ipq6018-cp01-c1.dt.yaml

which I think is making Rob bot-check fail.

So, I think instead of dropping the patch, let's try and understand
from the 'ipq6018 qce' documentation if the clocks are really
'optional' there for the qce block (as clock properties are not
mentioned in the dts from the very first upstream version). If not, we
can try and fix the 'ipq6018 qce' dts node itself.

Regards,
Bhupesh



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