From: Matthias Kaehlcke <mka@chromium•org>
To: Daniel Lezcano <daniel.lezcano@linaro•org>
Cc: nm@ti•com, juri.lelli@redhat•com, peterz@infradead•org,
viresh.kumar@linaro•org, liviu.dudau@arm•com,
dri-devel@lists•freedesktop.org, bjorn.andersson@linaro•org,
bsegall@google•com, alyssa.rosenzweig@collabora•com,
festevam@gmail•com, Morten.Rasmussen@arm•com, robh@kernel•org,
amit.kucheria@verdurent•com, lorenzo.pieralisi@arm•com,
khilman@kernel•org, agross@kernel•org, b.zolnierkie@samsung•com,
steven.price@arm•com, cw00.choi@samsung•com, mingo@redhat•com,
linux-imx@nxp•com, rui.zhang@intel•com, mgorman@suse•de,
orjan.eide@arm•com, daniel@ffwll•ch, linux-pm@vger•kernel.org,
linux-arm-msm@vger•kernel.org, s.hauer@pengutronix•de,
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tomeu.vizoso@collabora•com, qperret@google•com, sboyd@kernel•org,
rdunlap@infradead•org, rjw@rjwysocki•net,
linux-kernel@vger•kernel.org, kernel@pengutronix•de,
sudeep.holla@arm•com, patrick.bellasi@matbug•net,
shawnguo@kernel•org, Lukasz Luba <lukasz.luba@arm•com>
Subject: Re: [PATCH v5 3/5] thermal: devfreq_cooling: Use PM QoS to set frequency limits
Date: Fri, 3 Apr 2020 10:18:18 -0700 [thread overview]
Message-ID: <20200403171818.GO199755@google.com> (raw)
In-Reply-To: <d73ce772-8d0a-e5f4-097a-d89e01ff7578@linaro.org>
Hi Daniel,
On Fri, Apr 03, 2020 at 06:43:20PM +0200, Daniel Lezcano wrote:
> On 18/03/2020 12:45, Lukasz Luba wrote:
> > From: Matthias Kaehlcke <mka@chromium•org>
> >
> > Now that devfreq supports limiting the frequency range of a device
> > through PM QoS make use of it instead of disabling OPPs that should
> > not be used.
> >
> > The switch from disabling OPPs to PM QoS introduces a subtle behavioral
> > change in case of conflicting requests (min > max): PM QoS gives
> > precedence to the MIN_FREQUENCY request, while higher OPPs disabled
> > with dev_pm_opp_disable() would override MIN_FREQUENCY.
> >
> > Signed-off-by: Matthias Kaehlcke <mka@chromium•org>
> > Reviewed-by: Lukasz Luba <lukasz.luba@arm•com>
> > Reviewed-by: Chanwoo Choi <cw00.choi@samsung•com>
>
> This patch is standalone, right? If yes, I will apply it.
Yes, it is standalone, please apply
Thanks
Matthias
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next prev parent reply other threads:[~2020-04-03 17:18 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200318114548.19916-1-lukasz.luba@arm.com>
[not found] ` <20200318114548.19916-6-lukasz.luba@arm.com>
2020-03-18 13:11 ` [PATCH v5 5/5] drm/panfrost: Register devfreq cooling and attempt to add Energy Model Alyssa Rosenzweig
2020-03-23 13:50 ` Lukasz Luba
[not found] ` <20200318114548.19916-3-lukasz.luba@arm.com>
2020-04-01 7:19 ` [PATCH v5 2/5] OPP: refactor dev_pm_opp_of_register_em() and update related drivers Lukasz Luba
2020-04-03 16:21 ` Daniel Lezcano
2020-04-06 14:05 ` Lukasz Luba
[not found] ` <20200318114548.19916-5-lukasz.luba@arm.com>
2020-04-01 10:49 ` [PATCH v5 4/5] thermal: devfreq_cooling: Refactor code and switch to use Energy Model Lukasz Luba
2020-04-03 17:44 ` Daniel Lezcano
2020-04-06 13:35 ` Lukasz Luba
[not found] ` <20200318114548.19916-2-lukasz.luba@arm.com>
2020-04-03 16:05 ` [PATCH v5 1/5] PM / EM: add devices to " Daniel Lezcano
2020-04-06 13:29 ` Lukasz Luba
2020-04-06 14:58 ` Daniel Lezcano
2020-04-06 16:07 ` Lukasz Luba
2020-04-06 21:17 ` Daniel Lezcano
2020-04-07 9:32 ` Lukasz Luba
[not found] ` <20200318114548.19916-4-lukasz.luba@arm.com>
2020-04-03 16:43 ` [PATCH v5 3/5] thermal: devfreq_cooling: Use PM QoS to set frequency limits Daniel Lezcano
2020-04-03 17:18 ` Matthias Kaehlcke [this message]
2020-04-03 17:19 ` Daniel Lezcano
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