From: Pavel Machek <pavel@ucw.cz>
To: Thara Gopinath <thara.gopinath@linaro.org>
Cc: rui.zhang@intel.com, ulf.hansson@linaro.org,
daniel.lezcano@linaro.org, bjorn.andersson@linaro.org,
agross@kernel.org, robh@kernel.org, amit.kucheria@verdurent.com,
mark.rutland@arm.com, rjw@rjwysocki.net,
linux-pm@vger.kernel.org, devicetree@vger.kernel.org,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v6 0/6] Introduce Power domain based warming device driver
Date: Tue, 16 Jun 2020 12:53:25 +0200 [thread overview]
Message-ID: <20200616105325.GH1718@bug> (raw)
In-Reply-To: <20200604015317.31389-1-thara.gopinath@linaro.org>
Hi!
> Certain resources modeled as a generic power domain in linux kernel can be
> used to warm up the SoC (mx power domain on sdm845) if the temperature
> falls below certain threshold. These power domains can be considered as
> thermal warming devices. (opposite of thermal cooling devices).
Would you explain when this is needed?
I'd normally expect "too low" temperature to be a problem during power-on, but at
that time Linux is not running so it can not provide the heating...
Best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
next prev parent reply other threads:[~2020-06-16 10:53 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-04 1:53 [PATCH v6 0/6] Introduce Power domain based warming device driver Thara Gopinath
2020-06-04 1:53 ` [PATCH v6 1/6] PM/Domains: Add support for retrieving genpd performance states information Thara Gopinath
2020-06-04 1:53 ` [PATCH v6 2/6] soc: qcom: rpmhpd: Introduce function to retrieve power domain performance state count Thara Gopinath
2020-06-16 9:21 ` Ulf Hansson
2020-06-16 17:19 ` Thara Gopinath
2020-06-04 1:53 ` [PATCH v6 3/6] thermal: Add generic power domain warming device driver Thara Gopinath
2020-06-16 9:21 ` Ulf Hansson
2020-07-03 10:02 ` Daniel Lezcano
2020-07-07 10:58 ` Lukasz Luba
2020-06-04 1:53 ` [PATCH v6 4/6] soc: qcom: Extend RPMh power controller driver to register warming devices Thara Gopinath
2020-06-16 9:21 ` Ulf Hansson
2020-06-04 1:53 ` [PATCH v6 5/6] dt-bindings: power: Extend RPMh power controller binding to describe thermal warming device Thara Gopinath
2020-06-16 9:21 ` Ulf Hansson
2020-06-04 1:53 ` [PATCH v6 6/6] arm64: dts: qcom: Indicate rpmhpd hosts a power domain that can be used as a " Thara Gopinath
2020-06-16 10:53 ` Pavel Machek [this message]
2020-06-16 17:24 ` [PATCH v6 0/6] Introduce Power domain based warming device driver Thara Gopinath
2020-06-17 21:14 ` Pavel Machek
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