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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: devicetree@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-GUID: pxY5Aq3AwXH5wqIfcP3b6KexekOHHg7Z X-Proofpoint-ORIG-GUID: pxY5Aq3AwXH5wqIfcP3b6KexekOHHg7Z X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODI4MDExOCBTYWx0ZWRfX5CPab8EOm4kp 0GTasB3fvmuzHOeW/mu05RvDlI5dD/z6a4SpLjs0GJBnFhkBC3tumj6FA0Opih0vBk995Vg9oKr gpfO3HD1u5Iw0nKb7eQXCecX0oFtIZXKeNilBvLOKsXOfG9EAyOVgDfNU+K1pHdBjOiYl30kBOw gtzzktstpqsu8jEq/0gMuNv+mtNFOBtqIr9ZDgn0JLzsqWkkYX7iDyLVWCw+FRdOg3EWj+wlHtw 8sYwTyn1i4LyG0/Nd4KlEElJTr5SK0Ap5khPv/GT/7YdR8aBtWq5ub7dPpYwhXJEllhfls3hnA8 G7E3XYVy4wMlPJ9s1IsrJvKeXl2Pge7nCLBm5Y3T0dgnWiF8pp4MhFPN9LeyylLunDoOUlCxliL 94MPbVWSOBgMH/VlU3caHl5Nl0w97+NbTHrWQE+zd1AIt8IJ2IK1wF7W8rTeKXvQ6Bv/sHIcgDd 4iY+3cLRkK+Lpnv0k3A== X-Proofpoint-Spam-Info: AW1haW4tMjYwODI4MDExOCBTYWx0ZWRfXykro8PKLhv2n 7Kx4VHK5cCzA4vcJzf/EHtGjXpGcFzsleFXViJrN/rEr0/4rsRVyKRgO9COHbGDYIp1OqqAvzmQ EzasBGkb2Lko6eG/pgp/eT9/+nrTDjU= X-Authority-Analysis: v=2.4 cv=Fpo1OWrq c=1 sm=1 tr=0 ts=6a918ffc cx=c_pps a=JIY1xp/sjQ9K5JH4t62bdg==:117 a=PRfkaYvzSr8QmIIGAkY2Sg==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yx91gb_oNiZeI1HMLzn7:22 a=aKGLMg70GXf6WMUK1bUA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=tNoRWFLymzeba-QzToBc:22 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 clxscore=1015 spamscore=0 malwarescore=0 lowpriorityscore=0 phishscore=0 bulkscore=0 adultscore=0 suspectscore=0 priorityscore=1501 impostorscore=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