linux-kernel - Re: [PATCH v6 4/8] media: qcom: camss: Move VFE power-domain specifics into vfe.c

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Message-ID: <3b8e6b65-5f37-49e5-b83e-b89726867ed2@linaro.org>
Date:   Sat, 25 Nov 2023 13:53:57 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Bryan O'Donoghue <bryan.odonoghue@...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 v6 4/8] media: qcom: camss: Move VFE power-domain
 specifics into vfe.c

On 23.11.2023 18:03, Bryan O'Donoghue wrote:
> Moving the location of the hooks to VFE power domains has several
> advantages.
> 
> 1. Separation of concerns and functional decomposition.
>    vfe.c should be responsible for and know best how manage
>    power-domains for a VFE, excising from camss.c follows this
>    principle.
> 
> 2. Embedding a pointer to genpd in struct camss_vfe{} meas that we can
>    dispense with a bunch of kmalloc array inside of camss.c.
> 
> 3. Splitting up titan top gdsc from vfe/ife gdsc provides a base for
>    breaking up magic indexes in dtsi.
> 
> Suggested-by: Matti Lehtimäki <matti.lehtimaki@...il.com>
> Tested-by: Matti Lehtimäki <matti.lehtimaki@...il.com>
> Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybciolinaro.org>

Konrad