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Fri, 28 Aug 2026 06:41:15 -0700 (PDT) X-Received: by 2002:ac5:c89a:0:b0:5bd:7446:e3ff with SMTP id 71dfb90a1353d-5c680ea208emr903882e0c.0.1787924475167; Fri, 28 Aug 2026 06:41:15 -0700 (PDT) Received: from [192.168.120.193] ([178.235.128.140]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-3a30559cfccsm3004681fa.40.2026.08.28.06.41.07 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 28 Aug 2026 06:41:14 -0700 (PDT) Message-ID: Date: Fri, 28 Aug 2026 15:41:06 +0200 Precedence: bulk X-Mailing-List: linux-remoteproc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 8/9] arm64: dts: qcom: monaco: 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-v8-8-b15d47adc379@oss.qualcomm.com> <01cd0d90-2908-42cb-9ae8-29828d4c03a0@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODI4MDExOCBTYWx0ZWRfXyT0bptPs3+RW fQ/nTfgu/Ga7WYNQNg+KBItPcV3vLREJBDFaI+l9FX6Jli3oplc9NupkF0N+ss10QTjgDVVbsn1 g8IUtL6hkYupKD/O6dNFOUQ/ogUZz/ThcpWj0LIjYge7GsVulQRf3UjVNXTPHz5qBo4r1PDaEtw fQSq63U/m+V4AwxuLy3ANi2+celoPFJyjVcAPzOHCHXfce2H1LW1AVOlbzIp5+NC4tmWqqiJ0G3 C3Is/srlG2z1HE5wLkJmU9UqdAH1jPlCCon+LG8ot8BYQP6Cs9Qi19vsp5v3FpYVZfMoFsEXs/Z bScZP1Ja0mVpYnDHtyI535GoOp9y/7zBBpc3R7R48IWMCRQ26DmxvyJvQ4oMoDyiyFf6vVYEdOG zSMY4l0cKwtCzhEimisjd0XEcihX77J/BZTkKgplLvzUK36XlukwN5LuHtrSz4hY+E5zb2BnMcB bPo8ltFmYN3HsmERPVg== X-Authority-Analysis: v=2.4 cv=MONQXsZl c=1 sm=1 tr=0 ts=6a918ffc 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=gowsoOTTUOVcmtlkKump:22 a=aKGLMg70GXf6WMUK1bUA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=XD7yVLdPMpWraOa8Un9W:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwODI4MDExOCBTYWx0ZWRfX7IlCmkHlDUTw xnPKkFK2PhcIwqEpAKaMCcFT8qruuwiZRDznFFVM74+vQlCpRmtQf71X6vxwjdYKgBsaRRd5is0 sZJRi/RhC81vYY/VkUPx8eQy61zCWuM= X-Proofpoint-ORIG-GUID: duQOwmlEqzAVwUaCLca_h7G3FAC6jkVq X-Proofpoint-GUID: duQOwmlEqzAVwUaCLca_h7G3FAC6jkVq 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 adultscore=0 lowpriorityscore=0 phishscore=0 suspectscore=0 bulkscore=0 impostorscore=0 spamscore=0 priorityscore=1501 clxscore=1015 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 8/25/26 2:25 PM, Gaurav Kohli wrote: > > > On 8/24/2026 7:49 PM, Konrad Dybcio wrote: >> 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 monaco. >> >> [...] >> >>>           nsp-0-0-0-thermal { >>> +            polling-delay-passive = <200>; >> >> ..and here it's 200 - I really think there should be a single value >> that makes sense, this seems no less than random > > Thanks for the review, Konrad. > > All targets added in this series use polling-delay-passive = <200> except Lemans, where the DTS already has polling-delay-passive = <10>. This series only adds the cooling maps there. > > As per internal profiling, 200 ms was chosen for remoteproc/QMI-based cooling. I can send a separate follow-up patch to normalize Lemans to 200 ms as well. I'm fine with a profiled value that's different between platforms if it's really beneficial, but it should be made explicit that it's right. If you believe the current settings can be improved, I'm all for it. Konrad