From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mason <slash.tmp@free.fr>
Subject: Re: [PATCH v8 1/2] thermal: add temperature sensor support for tango
 SoC
Date: Tue, 19 Apr 2016 16:49:14 +0200
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To: Eduardo Valentin <edubezval@gmail.com>
Cc: linux-pm <linux-pm@vger.kernel.org>, Zhang Rui <rui.zhang@intel.com>, Javi Merino <javi.merino@arm.com>, Viresh Kumar <viresh.kumar@linaro.org>, Rob Herring <robh@kernel.org>, Mark Rutland <mark.rutland@arm.com>, Sebastian Frias <sf84@laposte.net>, arm-soc <arm@kernel.org>

On 19/04/2016 16:21, Mason wrote:

> The Tango thermal driver provides support for the primitive temperature
> sensor embedded in Tango chips since the SMP8758.
> 
> This sensor only generates a 1-bit signal to indicate whether the die
> temperature exceeds a programmable threshold.

Tested with the following script:

X=3
TEMP="/sys/class/thermal/thermal_zone0/temp"

echo RUN IDLE
for ((I=0; I<30; ++I)); do cat $TEMP; sleep $X; done

echo RUN HEAVY LOAD
cpuburn-a9 &
cpuburn-a9 &
for ((I=0; I<60; ++I)); do cat $TEMP; sleep $X; done

echo KILL HEAVY LOAD
kill $(jobs -p)
for ((I=0; I<30; ++I)); do cat $TEMP; sleep $X; done


RUN IDLE
43000
47000
47000
43000
52000
52000
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47000
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RUN HEAVY LOAD
52000
61000
56000
61000
65000
65000
65000
65000
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61000
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KILL HEAVY LOAD
70000
./thermo2.sh: line 14:   972 Terminated              cpuburn-a9
./thermo2.sh: line 14:   973 Terminated              cpuburn-a9
61000
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52000

Regards.