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Fri, 22 May 2026 07:21:24 -0700 (PDT) X-Received: by 2002:a17:90b:5343:b0:368:83e6:ca95 with SMTP id 98e67ed59e1d1-36a671e98dcmr3494333a91.0.1779459683996; Fri, 22 May 2026 07:21:23 -0700 (PDT) Received: from [192.168.1.13] ([106.222.231.34]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-36a6f0baca7sm1350671a91.2.2026.05.22.07.21.14 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 22 May 2026 07:21:23 -0700 (PDT) Message-ID: <8da827fa-bc60-4086-a424-5ec376f15e27@oss.qualcomm.com> Date: Fri, 22 May 2026 19:51:12 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 6/8] arm64: dts: qcom: kaanapali: Add GPU cooling To: Dmitry Baryshkov Cc: Akhil P Oommen , 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 References: <20260512-kaana-gpu-dt-v1-0-13e1c07c2050@oss.qualcomm.com> <20260512-kaana-gpu-dt-v1-6-13e1c07c2050@oss.qualcomm.com> Content-Language: en-US From: Gaurav Kohli In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-GUID: FwMkcUMjeIwVnZCvi7-qJLMMzlEA2mnO X-Authority-Analysis: v=2.4 cv=B/qJFutM c=1 sm=1 tr=0 ts=6a106665 cx=c_pps a=UNFcQwm+pnOIJct1K4W+Mw==:117 a=JaHktJlP2QtFIg7UHuVw+g==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=rjDOXfNolGiz0B_7zKQA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=uKXjsCUrEbL0IQVhDsJ9:22 X-Proofpoint-ORIG-GUID: FwMkcUMjeIwVnZCvi7-qJLMMzlEA2mnO X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTIyMDE0MiBTYWx0ZWRfX3nD5m7Q1qxwd xxxaCgzId9lt4JtUA2RtCEzAd6hyeCsWB9fSXICMMgaQaHXpy27mhJLw8FciU8AJUlU/288vnVm UMrR9HR1szvMzCASel94WNMFkS8YbrW8aTfoTGWMkeSyIxpzZkdHSCI6O98eAdsgkFUg0W1Zba1 SQb1tvEnYUdOnrXsxmHzsW10YiZvTp64FuXpPXtLjmwVB81QiklWm8J2lIQSIrWNyOODeE2JA6J ZmQ2KlS/b8cZGX/2PO0IShOmz9VAwY7HYu8ghjrd3FdCr62xFfblWprm2N3G3Cb+lNsbilWG0MT jKIZg+F2QxZkenRaceleTzi+cK1EiXCIlPWfJhJ3ssoqzu3r+y5KV/VLeYGEuEUhjj+x0WpYNKc UxGZa4EgmICiIBUMf4I+jvQLXlvEEma0+18MtYnw8FJJR9jP89QSVi+vCQRASHHtIPYIgcYjPOX 3e9tcUssz7TIdfLChIg== 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=2026-05-22_03,2026-05-18_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 impostorscore=0 clxscore=1015 malwarescore=0 lowpriorityscore=0 suspectscore=0 adultscore=0 priorityscore=1501 bulkscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605130000 definitions=main-2605220142 On 5/17/2026 11:56 PM, Dmitry Baryshkov wrote: > On Thu, May 14, 2026 at 12:17:54PM +0530, Gaurav Kohli wrote: >> >> >> On 5/13/2026 11:23 PM, Dmitry Baryshkov wrote: >>> On Tue, May 12, 2026 at 03:53:20AM +0530, Akhil P Oommen wrote: >>>> From: Gaurav Kohli >>>> >>>> Unlike the CPU, the GPU does not throttle its speed automatically when it >>>> reaches high temperatures. >>>> >>>> Set up GPU cooling by throttling the GPU speed >>>> when reaching 105°C. >>>> >>>> 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(-) >>>> >>>> + >>>> thermal-sensors = <&tsens5 0>; >>>> trips { >>>> - gpuss-0-hot { >>>> - temperature = <120000>; >>>> + gpuss_0_alert0: gpuss-0-alert0 { >>>> + temperature = <105000>; >>>> hysteresis = <5000>; >>>> - type = "hot"; >>>> + type = "passive"; >>>> }; >>> >>> Why don't we keep both passive and hot trip points? >>> >> >> Need guidance here, we are keeping passive at low temp so still hot trip is >> needed for such cases. > > I think we are saying the same. Keep both passive and hot trip points. > Sure, will send updated one. >> >>>> gpuss-0-critical { >>>> >>> >> >