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Date:   Mon, 16 Jan 2023 20:10:40 +0100
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Subject: Re: [PATCH] dt-bindings: qcom: geni-se: Fix '#address-cells' &
 '#size-cells' related dt-binding error
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To:     Bhupesh Sharma <bhupesh.sharma@linaro.org>
Cc:     linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
        agross@kernel.org, andersson@kernel.org, konrad.dybcio@linaro.org,
        linux-kernel@vger.kernel.org, bhupesh.linux@gmail.com,
        robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org
References: <20230113201038.267449-1-bhupesh.sharma@linaro.org>
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From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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On 16/01/2023 16:43, Bhupesh Sharma wrote:
> On Mon, 16 Jan 2023 at 13:23, Krzysztof Kozlowski
> <krzysztof.kozlowski@linaro.org> wrote:
>>
>> On 15/01/2023 22:33, Bhupesh Sharma wrote:
>>> On Sun, 15 Jan 2023 at 20:57, Krzysztof Kozlowski
>>> <krzysztof.kozlowski@linaro.org> wrote:
>>>>
>>>> On 13/01/2023 21:10, Bhupesh Sharma wrote:
>>>>> Fix the following '#address-cells' & '#size-cells' related
>>>>> dt-binding error:
>>>>>
>>>>>    $ make dtbs_check
>>>>>
>>>>>    From schema: Documentation/devicetree/bindings/soc/qcom/qcom,geni-se.yaml
>>>>>         arch/arm64/boot/dts/qcom/sm4250-oneplus-billie2.dtb: geniqup@4ac0000:
>>>>>               #address-cells:0:0: 2 was expected
>>>>>       From schema: Documentation/devicetree/bindings/soc/qcom/qcom,geni-se.yaml
>>>>
>>>> Don't we want rather to unify the soc address range?
>>>
>>> Well, the assumption in the original dt-bindings was that every reg
>>> variable is 4 * u32 wide (as most new qcom SoCs set #address- and
>>> #size-cells to <2>). However, that is not the case for all of the
>>> SoCs.
>>
>> Hm, which device of that SoC cannot be used with address/size cells 2?
> 
> As noted in the git log already the geniqup on sm6115 / sm4250 cannot
> be used with address/size cells 2 (See:
> https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/qcom/sm6115.dtsi#L795)

That's not relevant and not answering to my question. Address/size cells
affect children, so not geniqup. address-cells 2 means you have
everywhere 64 bit addresses, so which devices cannot work with such DTS?
If you claim that geniqup and its children has some troubles - please
point what troubles. The DTS and existing address/size cells have
nothing to do with it.

Best regards,
Krzysztof