From: Pavel Machek <pavel@ucw.cz>
To: Tony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org,
"Benoît Cousson" <bcousson@baylibre.com>,
devicetree@vger.kernel.org,
"Carl Philipp Klemm" <philipp@uvos.xyz>,
"Merlijn Wajer" <merlijn@wizzup.org>,
"Sebastian Reichel" <sre@kernel.org>,
"Daniel Lezcano" <daniel.lezcano@linaro.org>,
"Eduardo Valentin" <edubezval@gmail.com>,
"Peter Ujfalusi" <peter.ujfalusi@gmail.com>
Subject: Re: [PATCH 2/3] ARM: dts: motorola-mapphone: Configure lower temperature passive cooling
Date: Thu, 31 Dec 2020 19:53:29 +0100 [thread overview]
Message-ID: <20201231185329.GA28294@amd> (raw)
In-Reply-To: <20201230084232.19221-2-tony@atomide.com>
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Hi!
> The current cooling device temperature is too high at 100C as we have a
> battery on the device right next to the SoC as pointed out by Carl Philipp
> Klemm <philipp@uvos.xyz>. Let's configure the max temperature to
> 80C.
It is very possible I don't have power management set up correctly, as
it breaks the modem.
(Additional problem is that shutdown does not work for me, it reboots
instead, so emergency poweroff won't do much good).
Shortly after bootup with kernel 5.9, I was using for motmdm debugging.
19:03, uptime 4min, CPU temp rose from 41 to 43C. Battery and board
are at 28C, 30C. Let me plug in the charger. It draws 350mA from USB.
19:20, CPU still at 43C, board and battery at 30C. That's way better
than I remember.
I ran "cat /dev/zero"; within seconds, CPU is at 52C. It also went
down to 45C rather quickly.
Lets try three instances of cat /dev/zero. Again, 52C in 20 seconds
and it slowly climbs to 58.5C.
Let's try ofono build. 60C rather quickly, then 62C and 65C. It takes
few minutes to climb to 68.5C.
But... this is way better then I remember. Let's hope temperatures
don't climb back during some other use. (Also... machine seems cooler
to touch.)
Best regards,
Pavel
--
http://www.livejournal.com/~pavelmachek
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next prev parent reply other threads:[~2020-12-31 18:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-30 8:42 [PATCH 1/3] ARM: dts: Configure missing thermal interrupt for 4430 Tony Lindgren
2020-12-30 8:42 ` [PATCH 2/3] ARM: dts: motorola-mapphone: Configure lower temperature passive cooling Tony Lindgren
2020-12-31 14:33 ` Pavel Machek
2020-12-31 18:53 ` Pavel Machek [this message]
2020-12-30 8:42 ` [PATCH 3/3] ARM: dts: motorola-mapphone: Add 1.2GHz OPP Tony Lindgren
2020-12-31 9:43 ` Pavel Machek
2021-01-01 6:06 ` Tony Lindgren
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