Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Date:   Tue, 16 Jun 2020 12:53:25 +0200
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
Message-ID: <20200616105325.GH1718@bug>
References: <20200604015317.31389-1-thara.gopinath@linaro.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20200604015317.31389-1-thara.gopinath@linaro.org>
User-Agent: Mutt/1.5.23 (2014-03-12)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

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