linux-kernel - Re: [PATCH RFT v2 00/14] SMD RPMCC sleep preparations

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Message-ID: <6175f709-8c88-6ec3-4c31-cac9f2440b52@linaro.org>
Date:   Thu, 20 Apr 2023 11:36:24 +0200
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Stephan Gerhold <stephan@...hold.net>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        devicetree@...r.kernel.org, Shawn Guo <shawn.guo@...aro.org>,
        Taniya Das <quic_tdas@...cinc.com>
Subject: Re: [PATCH RFT v2 00/14] SMD RPMCC sleep preparations



On 20.04.2023 09:56, Stephan Gerhold wrote:
> On Thu, Apr 20, 2023 at 03:50:16AM +0200, Konrad Dybcio wrote:
>> On 8.03.2023 22:35, Konrad Dybcio wrote:
>>> Keepalive clocks for other platforms were gathered by digging in old
>>> downstream kernels, please give them a test.
>> I have an implementation of rpmcc-within-icc ready(ish) locally. Turns out
>> some SoCs need a keepalive (19.2MHz, active-only) vote on clocks that
>> are NOT governed by interconnect.. So before we can disable clocks,
>> both will need to be implemented.. ugh... I was hoping we could avoid
>> having it in rpmcc..
>>
> 
> Can you give an example? Which clocks are affected on which SoC?
msm8998/sdm660 and PNoC

Konrad
> 
> Thanks,
> Stephan