Re: [PATCH v3] dt-bindings: clk: qcom: Fix self-validation, split, and clean cruft

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Quoting Douglas Anderson (2020-02-03 09:49:43)
> The 'qcom,gcc.yaml' file failed self-validation (dt_binding_check)
> because it required a property to be either (3 entries big),
> (3 entries big), or (7 entries big), but not more than one of those
> things.  That didn't make a ton of sense.
> 
> This patch splits all of the exceptional device trees (AKA those that
> would have needed if/then/else rules) from qcom,gcc.yaml.  It also
> cleans up some cruft found while doing that.
> 
> After this lands, this worked for me atop clk-next with just the known
> error about msm8998:
>   for f in \
>     Documentation/devicetree/bindings/clock/qcom,gcc-apq8064.yaml \
>     Documentation/devicetree/bindings/clock/qcom,gcc-ipq8074.yaml \
>     Documentation/devicetree/bindings/clock/qcom,gcc-msm8996.yaml \
>     Documentation/devicetree/bindings/clock/qcom,gcc-msm8998.yaml \
>     Documentation/devicetree/bindings/clock/qcom,gcc-qcs404.yaml \
>     Documentation/devicetree/bindings/clock/qcom,gcc-sc7180.yaml \
>     Documentation/devicetree/bindings/clock/qcom,gcc-sm8150.yaml \
>     Documentation/devicetree/bindings/clock/qcom,gcc.yaml; do \
>       ARCH=arm64 make dtbs_check DT_SCHEMA_FILES=$f; \
>   done
> 
> I then picked this patch atop linux-next (next-20200129) and ran:
>   # Delete broken yaml:
>   rm Documentation/devicetree/bindings/pci/intel-gw-pcie.yaml
>   ARCH=arm64 make dt_binding_check | grep 'clock/qcom'
> ...and that didn't seem to indicate problems.
> 
> Arbitrary decisions made (yell if you want changed):
> - Left all the older devices (where clocks / clock-names weren't
>   specified) in a single file.
> - Didn't make clocks "required" for msm8996 but left them as listed.
>   This seems a little weird but it matches the old binding.
> 
> Misc cleanups as part of this patch:
> - Fixed schema id to not have "bindings/" as per Rob [1].
> - Listed include files as per Stephen.
> - sm8150 was claimed to be same set of clocks as sc7180, but driver
>   and dts appear to say that "bi_tcxo_ao" doesn't exist.  Fixed.
> - In "apq8064", "#thermal-sensor-cells" was missing the "#".
> - Got rid of "|" at the end of top description since spacing doesn't
>   matter.
> - Changed indentation to consistently 2 spaces (it was 3 in some
>   places).
> - Added period at the end of protected-clocks description.
> - No space before ":".
> - Updated sc7180/sm8150 example to use the 'qcom,rpmh.h' include.
> - Updated sc7180/sm8150 example to use larger address/size cells as
>   per reality.
> - Updated sc7180/sm8150 example to point to the sleep_clk rather than
>   <0>.
> - Made it so that gcc-ipq8074 didn't require #power-domain-cells since
>   actual dts didn't have it and I got no hits from:
>     git grep _GDSC include/dt-bindings/clock/qcom,gcc-ipq8074.h
> - Made it so that gcc-qcs404 didn't require #power-domain-cells since
>   actual dts didn't have it and I got no hits from:
>     git grep _GDSC include/dt-bindings/clock/qcom,gcc-qcs404.h
> 
> Noticed, but not done in this patch (volunteers needed):
> - Add "aud_ref_clk" to sm8150 bindings / dts even though I found a
>   reference to it in "gcc-sm8150.c".
> - Fix node name in actual ipq8074 to be "clock-controller" (it's gcc).
> - Since the example doesn't need phandes to exist, in msm8998 could
>   just make up places providing some of the clocks currently bogused
>   out with <0>.
> - On msm8998 clocks are listed as required but current dts doesn't
>   have them.
> 
> [1] https://lore.kernel.org/r/CAL_Jsq+_2E-bAbP9F6VYkWRp0crEyRGa5peuwP58-PZniVny7w@xxxxxxxxxxxxxx
> 
> Fixes: ab91f72e018a ("clk: qcom: gcc-msm8996: Fix parent for CLKREF clocks")
> Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
> Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
> Reviewed-by: Jeffrey Hugo <jeffrey.l.hugo@xxxxxxxxx>
> ---

Applied to clk-next





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