Re: [PATCH] dt-bindings: memory: convert Samsung Exynos DMC to dtschema

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On 18/08/2021 16:31, Rob Herring wrote:
> On Mon, Aug 16, 2021 at 3:32 AM Krzysztof Kozlowski
> <krzysztof.kozlowski@xxxxxxxxxxxxx> wrote:
>>
>> On 16/08/2021 09:53, Lukasz Luba wrote:
>>> Hi Krzysztof,
>>>
>>> On 8/13/21 1:54 PM, Krzysztof Kozlowski wrote:
>>>> Convert Samsung Exynos5422 SoC frequency and voltage scaling for
>>>> Dynamic Memory Controller to DT schema format using json-schema.
>>>>
>>>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx>
>>>> ---
>>>>   .../memory-controllers/exynos5422-dmc.txt     |  84 -----------
>>>>   .../samsung,exynos5422-dmc.yaml               | 137 ++++++++++++++++++
>>>>   MAINTAINERS                                   |   2 +-
>>>
>>> I'm not an expert in this DT scripts and why it complains. Maybe it
>>> complains because the "samsung,exynos-ppmu" is defined in the .txt
>>> file... (?)
>>> Although, in general looks OK.
>>>
>>> Acked-by: Lukasz Luba <lukasz.luba@xxxxxxx>
>>
>> I think the warning (triggered by DT_CHECKER_FLAGS=-m) can be ignored
>> because it complains about compatible in example which is not present in
>> the bindings. Usually it means someone wrote example not matching the
>> bindings (e.g. a typo in compatible) but here it is on purpose.
> 
> Ultimately, it will mean the binding is undocumented (or a typo). But
> right now, it means the binding is undocumented with a schema. It's
> off by default because there's still about 80 warnings. It's turned on
> for the bot so we don't add more. So please don't ignore it.
> 

By "Ignore" I meant here that it is a false positive, so it can be
ignored. The warning is about compatible "samsung,exynos-ppmu" used in
the example. However this exynos-ppmu is not part of this bindings and
is documented elsewhere:
Documentation/devicetree/bindings/devfreq/event/exynos-ppmu.txt


Best regards,
Krzysztof



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