linux-kernel - Re: [PATCH 2/6] arm64: dts: qcom: sdm845: move WCD9340 codec to separate file

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Date:   Mon, 16 Jan 2023 08:58:20 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/6] arm64: dts: qcom: sdm845: move WCD9340 codec to
 separate file

On 16/01/2023 06:55, Dmitry Baryshkov wrote:
> On Sun, 15 Jan 2023 at 13:21, Krzysztof Kozlowski
> <krzysztof.kozlowski@...aro.org> wrote:
>>
>> On 14/01/2023 21:33, Konrad Dybcio wrote:
>>>
>>>
>>> On 13.01.2023 17:22, Krzysztof Kozlowski wrote:
>>>> WCD9340 codec node is not a property of the SoC, but board.  Move it to
>>>> separate file and include it in the specific boards.  On all others,
>>>> keep the Slimbus node disabled as it is empty.
>>>>
>>>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
>>>> ---
>>> Generally this should be SoC-independent, for example some newer
>>> MSM8998 devices shipped with the 9340 codec that most 845 devices
>>> used, but earlier ones used the WCD9335 found on MSM8996
>>
>> OK, but I don't get if you expect me to change anything?
> 
> Maybe it might make sense to name new include file just 'wcd9340.dtsi'
> rather than 'sdm845-somthing.dtsi'? Same applies to the wcd9335 codec
> found in msm8996.dtsi, if you are going to extract it too.

Ah, then I vote against, because it is not only codec, but also it's bus
attachment. It cannot be re-used on other devices.

Same approach with sc7280 audios - not re-usable for other SoCs.

Best regards,
Krzysztof