linux-kernel - Re: [PATCH v5 5/7] media: qcom: camss: Add support for named power-domains

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Date:   Wed, 22 Nov 2023 20:55:17 +0000
From:   Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>, hverkuil-cisco@...all.nl,
        laurent.pinchart@...asonboard.com, Robert Foss <rfoss@...nel.org>,
        Todor Tomov <todor.too@...il.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        matti.lehtimaki@...il.com, quic_grosikop@...cinc.com
Cc:     linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 5/7] media: qcom: camss: Add support for named
 power-domains

On 22/11/2023 19:55, Konrad Dybcio wrote:
> 
> 
> On 11/18/23 13:11, Bryan O'Donoghue wrote:
>> Right now we use fixed indexes to assign power-domains, with a
>> requirement for the TOP GDSC to come last in the list.
>>
>> Adding support for named power-domains means the declaration in the dtsi
>> can come in any order.
>>
>> After this change we continue to support the old indexing - if a SoC
>> resource declaration or the in-use dtb doesn't declare power-domain names
>> we fall back to the default legacy indexing.
>>
>>  From this point on though new SoC additions should contain named
>> power-domains, eventually we will drop support for legacy indexing.
>>
>> Tested-by: Matti Lehtimäki <matti.lehtimaki@...il.com>
>> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
>> ---
> So, this commit should be a NOP within this series?
> 
> res->pd_name isn't defined anywhere afaics
> 
> Konrad

This series is mergeable though the linux-media tree standalone, yes.

Once merged, the dtsi change given in the cover letter will be submitted.

The sm8250 change is posted here : 
https://git.codelinaro.org/bryan.odonoghue/kernel/-/tree/b4/b4-camss-named-power-domains-v5+sm8250

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