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([2a01:cde0:108:24ed:2206:62e9:bbc4:c360]) by smtp.gmail.com with ESMTPSA id 00721157ae682-81fb8a8feb5sm13764387b3.31.2026.07.30.10.10.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 30 Jul 2026 10:10:24 -0700 (PDT) Message-ID: <0f56d22d-437d-409a-852f-9fbf4e303284@oss.qualcomm.com> Date: Thu, 30 Jul 2026 19:10:10 +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 v6 9/9] arm64: dts: qcom: hamoa: 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, Dipa Ramesh Mantre , Dmitry Baryshkov References: <20260727-b4-qmi-tmd-v6-0-973cd3a226af@oss.qualcomm.com> <20260727-b4-qmi-tmd-v6-9-973cd3a226af@oss.qualcomm.com> Content-Language: en-US From: Daniel Lezcano In-Reply-To: <20260727-b4-qmi-tmd-v6-9-973cd3a226af@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzMwMDEyOCBTYWx0ZWRfX7h+Vn6vT69QP yXbV4vUPSpq3F3GXN9afCmrF1UI39n4naFYU3SDtn6w40EcMeJPHmOVzRnoLJHyQHDPkU/N0/rp uiS4RPbELOt8QsCGEPDVY1sCv13zIphvNKRFNgCRcdvrixArfeZRIbFcqBIeIpaK+So05f/kqnL mRxGbo1+9bFaNImYa0v6xaiEY7kDDzdrzYPzucWnaDivaFxJHx/l5J7/V+W1jttN3tcut+540sm IBRYjmJRKv+RqKwwL9tndJ8ZGrx52vIrurx3f0fvBz0ivCrszC6AAlCJzc/TR6YGC9w9o6pmRUu YtdWj3UMCjPN6dDmWXhjElQ4XHi2+zTq0uIjuq1ym0SjaixWgvrgp0GjUb3VLL1WEJOkjUdcWvz l+7s/t8rfrF4vez16kd3vsYBye3G3s97THVfaSZdg0piNZFkLja9ACXw/mfMcD53EBvc1jFBexE a6mV4peNi220YC3Yz6A== X-Proofpoint-GUID: zVoeS-qHy_IyTp-ZlfZDdw_U2OGIrxoN X-Proofpoint-Spam-Info: AW1haW4tMjYwNzMwMDEyOCBTYWx0ZWRfX9jKzKoh5NP/Q 1lw2yMnTUetu8cp7qt8d0vji/MGWxJNeDMjEww+NZdyDWN3R/hPoaZmds0qJ4VN11TByySxJlDW NWZBsNkkBi/cUhjcYgsF1Rg6t/o3i64= X-Proofpoint-ORIG-GUID: zVoeS-qHy_IyTp-ZlfZDdw_U2OGIrxoN X-Authority-Analysis: v=2.4 cv=WuQb99fv c=1 sm=1 tr=0 ts=6a6b8582 cx=c_pps a=72HoHk1woDtn7btP4rdmlg==: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=vpmf1welhrwVHoobIegA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=kA6IBgd4cpdPkAWqgNAz: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-2607300128 On 7/27/26 16:22, Gaurav Kohli wrote: > From: Dipa Ramesh Mantre > > Unlike the CPU, the CDSP does not throttle its speed automatically > when it reaches high temperatures in hamoa. > > Set up CDSP cooling for both instances by throttling the cdsp, when > it reaches 95°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. > > Signed-off-by: Dipa Ramesh Mantre > Reviewed-by: Dmitry Baryshkov > Signed-off-by: Gaurav Kohli > --- > arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts | 32 +++++++++++++++ > arch/arm64/boot/dts/qcom/hamoa.dtsi | 63 ++++++++++++++++++++++++++++++ > 2 files changed, 95 insertions(+) > > diff --git a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts > index 9fa86bb6438e..a146be1cb5fb 100644 > --- a/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts > +++ b/arch/arm64/boot/dts/qcom/hamoa-iot-evk.dts > @@ -1684,4 +1684,36 @@ trip-point0 { > }; > }; > }; > + > + nsp0-thermal { > + trips { > + trip-point1 { > + temperature = <105000>; > + }; > + }; > + }; > + > + nsp1-thermal { > + trips { > + trip-point1 { > + temperature = <105000>; > + }; > + }; > + }; > + > + nsp2-thermal { > + trips { > + trip-point1 { > + temperature = <105000>; > + }; > + }; > + }; > + > + nsp3-thermal { > + trips { > + trip-point1 { > + temperature = <105000>; > + }; > + }; > + }; From thermal-zones.yaml: ... required: - temperature - hysteresis - type ...