linux-kernel - Re: [PATCH] thermal/drivers/sun8i: Don't fail probe due to zone registration failure

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Date:   Sun, 23 Jul 2023 11:40:34 +0200
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Mark Brown <broonie@...nel.org>, Icenowy Zheng <uwu@...nowy.me>
Cc:     Vasily Khoruzhick <anarsoul@...il.com>,
        Yangtao Li <tiny.windzz@...il.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Amit Kucheria <amitk@...nel.org>,
        Zhang Rui <rui.zhang@...el.com>, Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Hugh Dickins <hughd@...gle.com>, linux-pm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] thermal/drivers/sun8i: Don't fail probe due to zone
 registration failure


Hi Mark,

On 22/07/2023 18:46, Mark Brown wrote:
> On Sat, Jul 22, 2023 at 08:11:43PM +0800, Icenowy Zheng wrote:
>> 在 2023-07-18星期二的 16:04 +0100，Mark Brown写道：
> 
>>> Since we currently do not define any trip points for the GPU thermal
>>> zones on at least A64 or H5 this means that we have no thermal
>>> support
>>> on these platforms:
> 
>>> [    1.698703] thermal_sys: Failed to find 'trips' node
>>> [    1.698707] thermal_sys: Failed to find trip points for thermal-
>>> sensor id=1
> 
>> I think this is an issue in the core thermal subsystem, and sent a
>> patch; Unfortunately the patch seems to be rejected by linux-arm-kernel
>> (and some other mailing lists)...
> 
> It did seem to be a bit of an excessively strict requirement, I was
> going to poke at that myself.  It does seem worthwhile doing the change
> in the sun8i driver anyway, there might be some other issue that causes
> registration to fail which would have the same issue.

Why do you want a thermal zone if there is no trip point ?


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