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([2a01:cde0:108:24ed:2206:62e9:bbc4:c360]) by smtp.gmail.com with ESMTPSA id 00721157ae682-81fb891e1a7sm13560187b3.17.2026.07.30.09.53.19 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 30 Jul 2026 09:53:25 -0700 (PDT) Message-ID: <009be7ea-c886-4029-b09e-efabb94bc153@oss.qualcomm.com> Date: Thu, 30 Jul 2026 18:53:18 +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 v6 7/9] arm64: dts: qcom: talos: Enable CDSP cooling To: Gaurav Kohli , Bjorn Andersson , Mathieu Poirier , Rob Herring , Krzysztof Kozlowski , Conor Dooley , 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: <20260727-b4-qmi-tmd-v6-0-973cd3a226af@oss.qualcomm.com> <20260727-b4-qmi-tmd-v6-7-973cd3a226af@oss.qualcomm.com> Content-Language: en-US From: Daniel Lezcano In-Reply-To: <20260727-b4-qmi-tmd-v6-7-973cd3a226af@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzMwMDEyNiBTYWx0ZWRfX+N+iT2Ogb5ub wLg1fDEP4GXiU2w5nFQI1eMenwkh+WimKD4/3jDscCPZ7Cv7ADUV1SQ7SmXEfkpk3bsFs7M94aQ KnwNiDJjHIFjFo0SF0cvEWgIHV9sCUSUNXgvIzVUWimO1Fhplc/wp7kHVFDsQrgBRqrb73ApwQ7 Wye/Q8gh2V1AT3GGTFefkTm0O5SINxta5WHa8FGiUACkueUra37imDaGQEdl082lfjWqoruCeYS Sg5YSr3DJs2kDFhXJF/L3Q0mufBjcyAuwRBfiirkonrGtwFk+kSVkTPOJ3VUdK4B7Ohv77vdLSv rZzz8m2/qYv0o37VGpH1e2aSPJfM8MGeIDrEV1Yf1wBdKZZFOwDbjMUwc+ggqJTBczAKs4eAoSp BT8bxNVWI7QWV6BUbKceKDwbsJAV+ZXNBwV0ift1W2CY4S01t1PNMla4g8tmUVhcNeghYP2OfQ5 bp1fPg04Wyk7dwJPvzw== X-Proofpoint-GUID: eVv7u7oIFyPFCEOLFj78pNKht3mKWlWZ X-Proofpoint-Spam-Info: AW1haW4tMjYwNzMwMDEyNiBTYWx0ZWRfXx8QdQPBSaWtc c0cuGTiqSdf9B//z5pRAM6teJg/tOA+lmwJh5AVdncSGCVIccVrdPylmVbEx3jDOVlmGTt2cS8t jKSK2LhuyV8eEm5t7ZpqkTetZLxk1JM= X-Proofpoint-ORIG-GUID: eVv7u7oIFyPFCEOLFj78pNKht3mKWlWZ X-Authority-Analysis: v=2.4 cv=WuQb99fv c=1 sm=1 tr=0 ts=6a6b8186 cx=c_pps a=NMvoxGxYzVyQPkMeJjVPKg==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=EUspDBNiAAAA:8 a=_nN_CDt7C_a4776dohAA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=kLokIza1BN8a-hAJ3hfR:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-30_05,2026-07-30_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 impostorscore=0 adultscore=0 spamscore=0 lowpriorityscore=0 suspectscore=0 malwarescore=0 bulkscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607300126 On 7/27/26 16:22, 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: Dmitry Baryshkov > Signed-off-by: Gaurav Kohli > --- Reviewed-by: Daniel Lezcano