Re: [PATCH v2 00/22] arm64: dts: qcom: remove duplication in PMIC declarations

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On 02/04/2023 00:07, Dmitry Baryshkov wrote:
> The sc8280xp platform uses its own copy of PMIC declarations. This can
> easily end up with the issues that are fixed in the main PMIC include
> file, but are not fixed for sc8280xp (and vice versa). For example
> commit c0ee8e0ba5cc ("arm64: dts: qcom: pmk8350: Use the correct PON
> compatible") changed pmk8350 to use "qcom,pmk8350-pon" compat for the
> PON device, while sc8280xp-pmic.dtsi still has the incorrect
> "qcom,pm8998-pon".
> 
> Another example is pm8280_2_temp_alarm device, which uses interrupts
> tied to SID 2, while having SID 3. This can be easily left unnoticed.
> 
> Employ a small amount of C preprocessor magic to make
> sc8280xp-pmics.dtsi use standard PMIC include files

Preprocessor magic is disliked in DTS. We allow only simple defines, no
undefs. Sometimes some nodes or strings could be concatenated, but in
obvious way. You should not parametrize it and have different, generated
labels in DTS based on something coming external to that DTS.

Best regards,
Krzysztof




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