linux-kernel - Re: [PATCH v9 4/6] clk: qcom: common: Add interconnect clocks support

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Date: Thu, 25 Apr 2024 16:00:58 +0530
From: Varadarajan Narayanan <quic_varada@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@...aro.org>
CC: <andersson@...nel.org>, <mturquette@...libre.com>, <sboyd@...nel.org>,
        <robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
        <djakov@...nel.org>, <dmitry.baryshkov@...aro.org>,
        <quic_anusha@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        <linux-clk@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>
Subject: Re: [PATCH v9 4/6] clk: qcom: common: Add interconnect clocks support

On Tue, Apr 23, 2024 at 01:05:16AM +0200, Konrad Dybcio wrote:
>
>
> On 4/18/24 11:23, Varadarajan Narayanan wrote:
> > Unlike MSM platforms that manage NoC related clocks and scaling
> > from RPM, IPQ SoCs dont involve RPM in managing NoC related
> > clocks and there is no NoC scaling.
> >
> > However, there is a requirement to enable some NoC interface
> > clocks for accessing the peripheral controllers present on
> > these NoCs. Though exposing these as normal clocks would work,
> > having a minimalistic interconnect driver to handle these clocks
> > would make it consistent with other Qualcomm platforms resulting
> > in common code paths. This is similar to msm8996-cbf's usage of
> > icc-clk framework.
> >
> > Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
> > ---
>
> One more thing that we don't seem to have squared out is how to handle
> .sync_state. We can just jerryrig icc_sync_state in here, but I'm not
> sure how that goes with some floating ideas of clk_sync_state that have
> been tried in the past

Ok. Will add that and post a new version.

Thanks
Varada