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[2001:14ba:a073:af00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-3945cae06b4sm109561fa.28.2026.05.13.10.53.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 May 2026 10:53:49 -0700 (PDT) Date: Wed, 13 May 2026 20:53:47 +0300 From: Dmitry Baryshkov To: Akhil P Oommen Cc: Will Deacon , Robin Murphy , Joerg Roedel , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Marijn Suijten , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sean Paul , linux-arm-kernel@lists.infradead.org, iommu@lists.linux.dev, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, dri-devel@lists.freedesktop.org, Gaurav Kohli Subject: Re: [PATCH 6/8] arm64: dts: qcom: kaanapali: Add GPU cooling Message-ID: References: <20260512-kaana-gpu-dt-v1-0-13e1c07c2050@oss.qualcomm.com> <20260512-kaana-gpu-dt-v1-6-13e1c07c2050@oss.qualcomm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: <20260512-kaana-gpu-dt-v1-6-13e1c07c2050@oss.qualcomm.com> X-Authority-Analysis: v=2.4 cv=XIIAjwhE c=1 sm=1 tr=0 ts=6a04bab0 cx=c_pps a=WeENfcodrlLV9YRTxbY/uA==:117 a=xqWC_Br6kY4A:10 a=8nJEP1OIZ-IA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=U2egry7Pn7Pb3urGTtEA:9 a=3ZKOabzyN94A:10 a=wPNLvfGTeEIA:10 a=kacYvNCVWA4VmyqE58fU:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTEzMDE3OSBTYWx0ZWRfX0Kf5SWF3zu0x mbDxlIJFOMRlsfvzNZ/iX5wNcIAPgVhLtkttvxp4VXve65CLbkpXZMJeQZo3WFZlK6y3cP+JuLx XCUUVdyq+v2tSnQuIwD9zIaBmUmd4GJKAGrNigp4YT0Tk5OJngI6tsHe7p9lKOTyn5w3SPUOt9/ 7w8vtflocf9AexcBD6gQn7SK7kLCPmg8uye4+w3QOYv49mfUishYJ5gbgh9HipSFkIg2EPl8M9F QrnAXyLVL0dwUKgaZGwHrkFy1rd8tzGC0mUat99JifZsgdoo9oU9PmMYoimKrP5JtvQmSEhtWQD u1gNXL1lx+Hv+UU+hC1IBUX3v0VceSZvxbgGP0Ofu0M36ZvEWJEfCR/ERBZiTP3n9ee+o3L+kfJ S33whtmA3enWIoIbCLpRyRbSGSyWXZWcw/eVmLgAGTm9pYxJQwCnDd5WTX/QsswV6k0+9BU3rUY GRRwlgr8xPiW2IgF4rg== X-Proofpoint-ORIG-GUID: IWb-Nx4GPUOWEsAL52lUyZfBpMmQzBbZ X-Proofpoint-GUID: IWb-Nx4GPUOWEsAL52lUyZfBpMmQzBbZ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-13_01,2026-05-13_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 adultscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 bulkscore=0 clxscore=1015 spamscore=0 lowpriorityscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605050000 definitions=main-2605130179 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Tue, May 12, 2026 at 03:53:20AM +0530, Akhil P Oommen wrote: > From: Gaurav Kohli >=20 > Unlike the CPU, the GPU does not throttle its speed automatically when it > reaches high temperatures. >=20 > Set up GPU cooling by throttling the GPU speed > when reaching 105=B0C. >=20 > Signed-off-by: Gaurav Kohli > Signed-off-by: Akhil P Oommen > --- > arch/arm64/boot/dts/qcom/kaanapali.dtsi | 165 ++++++++++++++++++++++++++= ------ > 1 file changed, 135 insertions(+), 30 deletions(-) >=20 > diff --git a/arch/arm64/boot/dts/qcom/kaanapali.dtsi b/arch/arm64/boot/dt= s/qcom/kaanapali.dtsi > index c57aea44218e..5089416ec32c 100644 > --- a/arch/arm64/boot/dts/qcom/kaanapali.dtsi > +++ b/arch/arm64/boot/dts/qcom/kaanapali.dtsi > @@ -26,6 +26,7 @@ > #include > #include > #include > +#include > =20 > #include "kaanapali-ipcc.h" > =20 > @@ -7045,13 +7046,15 @@ nsphmx-3-critical { > }; > =20 > gpuss-0-thermal { > + polling-delay-passive =3D <200>; Other DT files use 10 for GPU thermal zones polling interval. > + > thermal-sensors =3D <&tsens5 0>; > =20 > trips { > - gpuss-0-hot { > - temperature =3D <120000>; > + gpuss_0_alert0: gpuss-0-alert0 { > + temperature =3D <105000>; > hysteresis =3D <5000>; > - type =3D "hot"; > + type =3D "passive"; > }; Why don't we keep both passive and hot trip points? > =20 > gpuss-0-critical { >=20 --=20 With best wishes Dmitry