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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-kernel@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-Authority-Analysis: v=2.4 cv=V4tNF+ni c=1 sm=1 tr=0 ts=6a6b8186 cx=c_pps a=g1v0Z557R90hA0UpD/5Yag==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=_nN_CDt7C_a4776dohAA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=MFSWADHSvvjO3QEy5MdX:22 X-Proofpoint-GUID: RVIweREq0v1A1O82LwK72JtfheoG7zo4 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzMwMDEyNiBTYWx0ZWRfX1riVwka/sEq1 9zKlqauANw8RGKIQ7w7Yx00TxYOfTkDOfC4lgeRv6D1TmstLLHNaY3fg29WEohKwNJRMQ9/I2hH /lsAKP9iEBOb+z5auEs59gsehh6ng0KYoY5AbH5L82PnnOgS96ggPL4SsVHo903WNCoy7jDHhMS TR7c9IaasGLqByD7ql/p7OpsQhtRlUwToLJBTnIH5PIBypqoYobsf0vXCMvznWmaIPdbczpzJnN r5UhAsrf5oZHCePOUN7ws7Y8IGJRmc5t6tSrgl85HrkUHO/U1fjWK1x/KZ40+rwaNyRkUsaLHzT mm7JHpNtxSYU/5QkXhVERwrKS25I38h4cuwSsGoGtswk8QgCIKT8S7IQvMxtifxH626jsPPV9yd m92OeqIYu8X1Ei21v394aoze3Co2btevmPAxtRemcVYxs1EExvVEy72CTjepnz99+2aaIGJHR8K wa6FdmQmOimbq4jJSnw== X-Proofpoint-Spam-Info: AW1haW4tMjYwNzMwMDEyNiBTYWx0ZWRfX8E8dDQAFNMat dP5YsGdoUjA9/fu94FjEn39gVvjFiNDpp5u5H/MqEf8RjCZ3AxxqYAYJlNLIjA6jLVVSz18B7IH Ob6VybdfwFOLodBx2xDU7Y2lDQ1RqQc= X-Proofpoint-ORIG-GUID: RVIweREq0v1A1O82LwK72JtfheoG7zo4 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 bulkscore=0 impostorscore=0 suspectscore=0 phishscore=0 adultscore=0 spamscore=0 priorityscore=1501 lowpriorityscore=0 malwarescore=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