linux-kernel - Re: [PATCH 0/4] Add RSC power domain support

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Date:   Fri, 23 Aug 2019 12:21:26 +0530
From:   Maulik Shah <mkshah@...eaurora.org>
To:     Stephen Boyd <swboyd@...omium.org>, agross@...nel.org,
        david.brown@...aro.org, linux-arm-msm@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        bjorn.andersson@...aro.org, evgreen@...omium.org,
        dianders@...omium.org, rnayak@...eaurora.org, ilina@...eaurora.org,
        lsrao@...eaurora.org, ulf.hansson@...aro.org
Subject: Re: [PATCH 0/4] Add RSC power domain support


On 8/14/2019 11:49 PM, Stephen Boyd wrote:
> Quoting Maulik Shah (2019-08-13 01:24:38)
>> Resource State Coordinator (RSC) is responsible for powering off/lowering
>> the requirements from CPU subsystem for the associated hardware like buses,
>> clocks, and regulators when all CPUs and cluster is powered down.
>>
>> RSC power domain uses last-man activities provided by genpd framework based on
>> Ulf Hansoon's patch series[1], when the cluster of CPUs enter deepest idle
>> states. As a part of domain poweroff, RSC can lower resource state requirements
>> by flushing the cached sleep and wake state votes for resources.
> This series looks like half the solution. Is there a full set of patches
> that connects the RPMh power domain to cpuidle and genpds?
Yes, i will include in next version.

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