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

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Message-ID: <5e2682bc-88cf-4aca-9e7d-205f4cfca989@linaro.org>
Date: Tue, 23 Apr 2024 01:05:16 +0200
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Varadarajan Narayanan <quic_varada@...cinc.com>, 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 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

Konrad