linux-kernel - Re: [PATCH v5 0/8] RK3588 and Rock 5B dts additions: thermal, OPP and fan

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Message-ID: <CABjd4YyY68dcA+Z0nWAUq1UmVLeLw52Pg6NGpzcW=WMNX8ioqA@mail.gmail.com>
Date: Mon, 8 Jul 2024 10:59:42 +0300
From: Alexey Charkov <alchark@...il.com>
To: Piotr Oniszczuk <piotr.oniszczuk@...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

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.

Best regards,
Alexey