linux-kernel - Re: [PATCH v2 0/6] drivers/qcom: add additional functionality to RPMH

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Message-ID: <20180905200557.GC28215@codeaurora.org>
Date:   Wed, 5 Sep 2018 14:05:57 -0600
From:   Lina Iyer <ilina@...eaurora.org>
To:     Raju P L S S S N <rplsssn@...eaurora.org>
Cc:     andy.gross@...aro.org, david.brown@...aro.org,
        linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
        rnayak@...eaurora.org, bjorn.andersson@...aro.org,
        linux-kernel@...r.kernel.org, sboyd@...nel.org,
        evgreen@...omium.org, dianders@...omium.org, mka@...omium.org
Subject: Re: [PATCH v2 0/6] drivers/qcom: add additional functionality to RPMH

Stephen, Doug,

Would you have some time to take a look at this series?

Thanks,
Lina

On Fri, Jul 27 2018 at 04:04 -0600, Raju P L S S S N wrote:
>From: "Raju P.L.S.S.S.N" <rplsssn@...eaurora.org>
>
>Changes in v1:
>- Remove unnecessary EXPORT_SYMBOL in rpmh-rsc
>
>This set of patches add additional functionality to RPMH drivers[1].
>
>PM drivers can choose to disallow idle modes when RSC controller is busy
>sending or processing requests. The patches add necessary functions to
>query the controller status.
>
>The controllers may be in 'solver' state, where they could be in autonomous
>mode executing low power modes for their hardware and as such are not
>available for sending active votes. Functionality to get notified about
>such state and disallow requests for state change in that case is added
>in these patches.
>
>The Power Domain Controller can be programmed to wakeup the RSC and
>setup the resources back in the active state, before the processor is
>woken up by a timer interrupt. The wakeup value from the timer hardware
>can be copied to the PDC which has its own timer and is in an always-on
>power domain. Programming the wakeup value is done through a separate
>register on the RSC. Functions necessary to program wakeup is added in
>the patches.
>
>Please consider reviewing this patchset.
>
>v1:https://lkml.org/lkml/2018/7/19/213
>
>
>
>[1] https://lkml.org/lkml/2018/6/20/519
>
>Lina Iyer (5):
>  drivers: qcom: rpmh-rsc: return if the controller is idle
>  drivers: qcom: rpmh: export controller idle status
>  drivers: qcom: rpmh: disallow active requests in solver mode
>  drivers: qcom: rpmh-rsc: write PDC data
>  drivers: qcom: rpmh: write PDC data
>
>Raju P.L.S.S.S.N (1):
>  drivers: qcom: rpmh-rsc: clear active mode configuration for waketcs
>
> drivers/soc/qcom/rpmh-internal.h |   6 ++
> drivers/soc/qcom/rpmh-rsc.c      | 132 ++++++++++++++++++++++++++++++---------
> drivers/soc/qcom/rpmh.c          | 100 +++++++++++++++++++++++++++++
> include/soc/qcom/rpmh.h          |  16 +++++
> 4 files changed, 225 insertions(+), 29 deletions(-)
>
>--
>The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,\na Linux Foundation Collaborative Project
>