linux-kernel - Re: [PATCH v6 5/9] pmdomain: qcom: rpmpd: Add IPQ9574 power domains

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Message-ID: <CAPDyKFoSK4_gRtOY2_pZhT7AytZ4qpZpRTzg5cOrqJj7A22b6A@mail.gmail.com>
Date: Mon, 5 Aug 2024 12:32:34 +0200
From: Ulf Hansson <ulf.hansson@...aro.org>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: Varadarajan Narayanan <quic_varada@...cinc.com>, Konrad Dybcio <konrad.dybcio@...aro.org>, robh@...nel.org, 
	krzk+dt@...nel.org, conor+dt@...nel.org, andersson@...nel.org, 
	mturquette@...libre.com, sboyd@...nel.org, ilia.lin@...nel.org, 
	rafael@...nel.org, viresh.kumar@...aro.org, quic_sibis@...cinc.com, 
	quic_rjendra@...cinc.com, danila@...xyga.com, neil.armstrong@...aro.org, 
	otto.pflueger@...cue.de, abel.vesa@...aro.org, luca@...tu.xyz, 
	geert+renesas@...der.be, stephan.gerhold@...nkonzept.com, 
	linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org, 
	linux-clk@...r.kernel.org, Praveenkumar I <quic_ipkumar@...cinc.com>
Subject: Re: [PATCH v6 5/9] pmdomain: qcom: rpmpd: Add IPQ9574 power domains

On Wed, 24 Jul 2024 at 19:26, Dmitry Baryshkov
<dmitry.baryshkov@...aro.org> wrote:
>
> On Wed, Jul 24, 2024 at 10:02:31AM GMT, Varadarajan Narayanan wrote:
> > On Wed, Jul 17, 2024 at 02:44:08PM +0530, Varadarajan Narayanan wrote:
> > > On Tue, Jul 16, 2024 at 02:15:12PM +0200, Konrad Dybcio wrote:
> > > > On 10.07.2024 8:10 AM, Varadarajan Narayanan wrote:
> > > > > From: Praveenkumar I <quic_ipkumar@...cinc.com>
> > > > >
> > > > > Add the APC power domain definitions used in IPQ9574.
> > > > >
> > > > > Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
> > > > > Signed-off-by: Praveenkumar I <quic_ipkumar@...cinc.com>
> > > > > Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
> > > > > ---
> > > >
> > > > Could you please confirm [1]?
> > > >
> > > > Konrad
> > > >
> > > > [1] https://lore.kernel.org/linux-arm-msm/57dadb35-5dde-4127-87aa-962613730336@linaro.org/
> > >
> > > The author is off for a few days. Will get back to you once he is in.
> >
> > Have responded to that query. Please see https://lore.kernel.org/linux-arm-msm/ZqCCpf1FwLWulSgr@hu-varada-blr.qualcomm.com/
>
> If it responds to voltage values, please model it as a regulator rather
> than a power domain.

Just wanted to give my brief opinion around this too.

I agree that it seems to make sense to model it as a regulator, but
that doesn't necessarily mean that we shouldn't model it as a
power-domain too.

If it is a power-domain it should be modelled like that - and then the
power-domain provider should be assigned as the consumer of that
regulator.

Kind regards
Uffe