Re: [PATCH 2/4] arm64: dts: qcom: x1e80100: Apply consistent critical thermal shutdown

From: Konrad Dybcio
Date: Thu Feb 20 2025 - 07:56:40 EST


On 19.02.2025 12:36 PM, Stephan Gerhold wrote:
> The firmware configures the TSENS controller with a maximum temperature of
> 120°C. When reaching that temperature, the hardware automatically triggers
> a reset of the entire platform. Some of the thermal zones in x1e80100.dtsi
> use a critical trip point of 125°C. It's impossible to reach those.
>
> It's preferable to shut down the system cleanly before reaching the
> hardware trip point. Make the critical temperature trip points consistent
> by setting all of them to 115°C and apply a consistent hysteresis.
> The ACPI tables also specify 115°C as critical shutdown temperature.
>
> Cc: stable@xxxxxxxxxxxxxxx
> Fixes: 4e915987ff5b ("arm64: dts: qcom: x1e80100: Enable tsens and thermal zone nodes")
> Signed-off-by: Stephan Gerhold <stephan.gerhold@xxxxxxxxxx>
> ---

Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>

Konrad