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Fri, 28 Aug 2026 06:41:25 -0700 (PDT) X-Received: by 2002:ac5:c89a:0:b0:5bd:7446:e3ff with SMTP id 71dfb90a1353d-5c680ea208emr904033e0c.0.1787924485232; Fri, 28 Aug 2026 06:41:25 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-3a30559cfccsm3004681fa.40.2026.08.28.06.41.16 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 Aug 2026 06:41:24 -0700 (PDT) Message-ID: <7b751d60-e8f3-4e22-8495-16dbd5163add@oss.qualcomm.com> Date: Fri, 28 Aug 2026 15:41:15 +0200 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 7/9] arm64: dts: qcom: talos: Enable CDSP cooling To: Gaurav Kohli , Bjorn Andersson , Mathieu Poirier , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Daniel Lezcano , Amit Kucheria , Konrad Dybcio , "Rafael J. Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Manivannan Sadhasivam , Kees Cook , "Gustavo A. R. Silva" , cros-qcom-dts-watchers@chromium.org Cc: linux-arm-msm@vger.kernel.org, linux-remoteproc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, linux-hardening@vger.kernel.org, manaf.pallikunhi@oss.qualcomm.com, Dmitry Baryshkov References: <20260809-b4-qmi-tmd-v8-0-b15d47adc379@oss.qualcomm.com> <20260809-b4-qmi-tmd-v8-7-b15d47adc379@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <20260809-b4-qmi-tmd-v8-7-b15d47adc379@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=UalhjqSN c=1 sm=1 tr=0 ts=6a919006 cx=c_pps a=wuOIiItHwq1biOnFUQQHKA==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=DJpcGTmdVt4CTyJn9g5Z:22 a=EUspDBNiAAAA:8 a=_nN_CDt7C_a4776dohAA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=XD7yVLdPMpWraOa8Un9W:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwODI4MDExOCBTYWx0ZWRfX3eP+kxJQ3mKy wTYk5HDcDKpimo+wEQRDBKcWUMYDdvcC0f2fTY7bkrwgT/O7qgwcLO8rAGKmmGn7lcLyajW2sQl OGBq5nlKIY7nLHdc+PS9HFlvzVJr+s0= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODI4MDExOCBTYWx0ZWRfXw1NQyPl41eb7 0vxXLy6pRS4rOHYGPYBFbiHjgVZHBgYe/Wr22h84VV9K6rU++okUNKDOknRmURKhRLL4SZ0c9q/ 6BPZg9uJ1SjtPOqRdFLEnd9ZlefD5Isew8pS4PirLds0yMlkzCqHbo4ez0CUCKeB40k6pExQwuO r8657TvU5DfBEtmZJRwRXs5YdojDKIaXNPgJ2IWL9pOnxBtdEF2UwKCDBzmUhk4Tf0W2soZ8rw1 OmiXmSSKLIovzAKnmwME30pIvOobVljIU447vBmHJykErKCvmWPCNLwqOfIIOMznyte3V4vXjvD 94tNqMKZllgdE0hLte8J6tGDPfu5ggiI0BrXhyNAW9GErEEPnIlLC+9JEViBui13p+LVDItlapr PwhUuWoXNHWhwheQxFK9VdZ4kzED1vt7ronLPSIKxlHiN9eaLW7ji0LZgKdowDKl3qb5NzDPk7C Oe9TtQagoF5iBzvuFrw== X-Proofpoint-ORIG-GUID: H4aCRKb4OpXRNIXoCtFKwHUL0UPiDvFw X-Proofpoint-GUID: H4aCRKb4OpXRNIXoCtFKwHUL0UPiDvFw X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-28_04,2026-08-27_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 bulkscore=0 clxscore=1015 adultscore=0 priorityscore=1501 suspectscore=0 lowpriorityscore=0 phishscore=0 impostorscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608280118 On 8/9/26 2:29 PM, Gaurav Kohli wrote: > Unlike the CPU, the CDSP does not throttle its speed automatically > when it reaches high temperatures in talos. > > Set up CDSP cooling by throttling the cdsp, when it reaches 105°C. > > Add polling-delay-passive so the governor periodically evaluates > the zone during passive cooling and steps up cooling levels when > temperature stabilizes below the next trip. > > Reviewed-by: Daniel Lezcano > Reviewed-by: Dmitry Baryshkov > Signed-off-by: Gaurav Kohli > --- Reviewed-by: Konrad Dybcio Konrad