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Message-Id: <B28C503C-B1A6-49E4-ADF0-82FA9A412D40@gmail.com>
Date: Mon, 8 Jul 2024 12:29:12 +0200
From: Piotr Oniszczuk <piotr.oniszczuk@...il.com>
To: Alexey Charkov <alchark@...il.com>
Cc: Heiko Stuebner <heiko@...ech.de>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Daniel Lezcano <daniel.lezcano@...aro.org>,
 Dragan Simic <dsimic@...jaro.org>,
 Viresh Kumar <viresh.kumar@...aro.org>,
 Chen-Yu Tsai <wens@...nel.org>,
 Diederik de Haas <didi.debian@...ow.org>,
 devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org,
 "open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 0/8] RK3588 and Rock 5B dts additions: thermal, OPP and
 fan

Alexey,
pls see inline

> Wiadomość napisana przez Alexey Charkov <alchark@...il.com> w dniu 08.07.2024, o godz. 09:59:
> 
> Hi Piotr,
> 
> On Sun, Jul 7, 2024 at 9:32 PM Piotr Oniszczuk
> <piotr.oniszczuk@...il.com> wrote:
>> 
>> Heiko, Alexey,
>> 
>> After some more tests: is varying fan-speeds working stable for you?
> 
> Yes, in my testing on Rock 5B it's been stable.
> 
>> In my case - 1 per few reboots results with board enters state with: constant full speed and no any reaction for cpu temp.
>> In such state - I need multiple hw poweroffs (remove usb-c plug) to get fan-speeds working again.
>> When board is such state - all seems to work ok (frequency scaling, etc) except fan is constantly full speed…
> 
> One thought: could you please check which thermal governor gets
> loaded? I used stepwise in my testing.
> 

this is from system when - after boot - i have constant full speed of fan 

root@...h-frontend-3614ae04f23f:~ # cat /sys/class/thermal/thermal_zone0/policy
step_wise
root@...h-frontend-3614ae04f23f:~ # cat /sys/class/thermal/thermal_zone1/policy
step_wise
root@...h-frontend-3614ae04f23f:~ # cat /sys/class/thermal/thermal_zone2/policy
step_wise
root@...h-frontend-3614ae04f23f:~ # cat /sys/class/thermal/thermal_zone3/policy
step_wise
root@...h-frontend-3614ae04f23f:~ # cat /sys/class/thermal/thermal_zone4/policy
step_wise
root@...h-frontend-3614ae04f23f:~ # cat /sys/class/thermal/thermal_zone5/policy
step_wise
root@...h-frontend-3614ae04f23f:~ # cat /sys/class/thermal/thermal_zone6/policy
step_wise
root@...h-frontend-3614ae04f23f:~ # cat /sys/class/thermal/thermal_zone7/policy

dmesg: https://gist.github.com/warpme/5d12df382ce353205c6ff0c37f5b4791

lsmod: https://gist.github.com/warpme/1c74b3be2cabe85366f227594d8a3e90

pls let me know is there anything else i can provide to investigate this issue...


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