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Date:      Tue, 25 Oct 2016 17:38:55 -0300 (ADT)
From:      Jared McNeill <jmcneill@invisible.ca>
To:        Milan Obuch <freebsd-arm@dino.sk>
Cc:        freebsd-arm@freebsd.org
Subject:   Re: aw_thermal breakage on Allwinner H3 SoC
Message-ID:  <alpine.DEB.2.11.1610251724430.641@dis.invisible.ca>
In-Reply-To: <20161025213913.310b502e@zeta.dino.sk>
References:  <20161024165820.16e6dd6f@zeta.dino.sk> <alpine.DEB.2.11.1610251058480.641@dis.invisible.ca> <alpine.DEB.2.11.1610251208390.641@dis.invisible.ca> <20161025180314.38ea1e96@zeta.dino.sk> <20161025202609.0958c55d@zeta.dino.sk> <20161025213913.310b502e@zeta.dino.sk>

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On Tue, 25 Oct 2016, Milan Obuch wrote:

> One more observation: booting verbose shows following
> aw_thermal0: <Allwinner Thermal Sensor Controller> mem 0x1c25000-0x1c253ff irq 29 on simplebus0
> aw_thermal0: #0: alarm 42C hyst 15C shut 65C
>
> which is for me wrong - shutdown temperature 65 degrees is unacceptably
> low.

Agreed. Those numbers are the SoC default values.

It looks like the thresholds should be defined in a thermal-zones node in 
the dts, but there is none defined in sun8i-h3.dtsi. We'll have to come up 
with some reasonable defaults, add them to our dts, and then add support 
for reading the trip points to the aw_thermal driver.

Cheers,
Jared



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