linux-kernel - Re: [PATCH 3/4] arm64: dts: qcom: x1e80100: Add GPU cooling

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Message-ID: <Z7X71VDghr_UxAdm@hovoldconsulting.com>
Date: Wed, 19 Feb 2025 16:42:13 +0100
From: Johan Hovold <johan@...nel.org>
To: Stephan Gerhold <stephan.gerhold@...aro.org>
Cc: Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Abel Vesa <abel.vesa@...aro.org>,
	Rajendra Nayak <quic_rjendra@...cinc.com>,
	Akhil P Oommen <quic_akhilpo@...cinc.com>,
	linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Neil Armstrong <neil.armstrong@...aro.org>
Subject: Re: [PATCH 3/4] arm64: dts: qcom: x1e80100: Add GPU cooling

On Wed, Feb 19, 2025 at 12:36:20PM +0100, Stephan Gerhold wrote:
> Unlike the CPU, the GPU does not throttle its speed automatically when it
> reaches high temperatures. With certain high GPU loads it is possible to
> reach the critical hardware shutdown temperature of 120°C, endangering the
> hardware and making it impossible to run certain applications.
> 
> Set up GPU cooling similar to the ACPI tables, by throttling the GPU speed
> when reaching 95°C and polling every 200ms.
> 
> Cc: stable@...r.kernel.org
> Fixes: 721e38301b79 ("arm64: dts: qcom: x1e80100: Add gpu support")
> Signed-off-by: Stephan Gerhold <stephan.gerhold@...aro.org>

Thanks for fixing this, looks good to me:

Reviewed-by: Johan Hovold <johan+linaro@...nel.org>