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Thu, 29 Jan 2026 04:11:03 -0800 (PST) X-Received: by 2002:a17:90b:3e4f:b0:353:3b33:8263 with SMTP id 98e67ed59e1d1-353fece5768mr7723430a91.9.1769688663151; Thu, 29 Jan 2026 04:11:03 -0800 (PST) Received: from [10.217.199.117] ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c642a3356b4sm4882283a12.17.2026.01.29.04.10.58 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 29 Jan 2026 04:11:02 -0800 (PST) Message-ID: <3a1b3a2b-d73a-4dae-b866-14abec2ff18d@oss.qualcomm.com> Date: Thu, 29 Jan 2026 17:40:56 +0530 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 v2 5/8] arm64: dts: qcom: lemans: Enable CDSP cooling To: Dmitry Baryshkov Cc: andersson@kernel.org, mathieu.poirier@linaro.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, rui.zhang@intel.com, lukasz.luba@arm.com, konradybcio@kernel.org, mani@kernel.org, casey.connolly@linaro.org, amit.kucheria@oss.qualcomm.com, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, manaf.pallikunhi@oss.qualcomm.com References: <20260127155722.2797783-1-gaurav.kohli@oss.qualcomm.com> <20260127155722.2797783-6-gaurav.kohli@oss.qualcomm.com> Content-Language: en-US From: Gaurav Kohli In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=d7T4CBjE c=1 sm=1 tr=0 ts=697b4e58 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=fChuTYTh2wq5r3m49p7fHw==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=V2w4IgnLWKD3j5nXI8sA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-GUID: 2LFH8OGWa97wDQHEmg7BK78E_OsBboyh X-Proofpoint-ORIG-GUID: 2LFH8OGWa97wDQHEmg7BK78E_OsBboyh X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTI5MDA4MiBTYWx0ZWRfXybTZS8Ijxf2U 4umjOc4aDyrrAPBk+dHuDu7xPHJ/qOCq4DBS7OtvLjvA8/hHZkrxp+EUwbqzr+q2Rax+IupFdZg 9wbv64FO4XrAWaiSGgS8Bc0/nYWaz56QiWPp0O6Xa69k4CZmMV89ivtkmJ5HfwJRxs5jLdpFvjd 4I2B9T1f8x0yR9I5OkOhNPETU4ef7JpTa9KbhnWD50nFoALzT0HWSkeyD43Q5uAWYu8yhkrvNqf EUjfhB/KXlHfpVX4+TeWQb5bYElAFZiY7rngRRvcWYNaM9LA7SWoI64L+0yRi0uWj0ZNkupnJOZ wwrsbomgc03gFcI8RBfM1qlCy0Pk/l3t2rx+BXZTev0uxTGMu8zd9OM6qod1fSK1wDuGdopvARq SpauaymkMQmnsbQC2e8MDhjcskKmqOxWTFuB5gG6gtKH+B9fFMDNjrmnB+RTxyWD/haAtdSl0/J HTg3dDfG/JGY61rW3tQ== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-01-29_02,2026-01-28_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 adultscore=0 malwarescore=0 impostorscore=0 bulkscore=0 spamscore=0 clxscore=1015 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2601290082 On 1/29/2026 6:13 AM, Dmitry Baryshkov wrote: > On Tue, Jan 27, 2026 at 09:27:19PM +0530, Gaurav Kohli wrote: >> Unlike the CPU, the CDSP does not throttle its speed automatically >> when it reaches high temperatures in Lemans. >> >> Set up CDSP cooling by throttling the cdsp when it reaches 105°C. >> >> Signed-off-by: Gaurav Kohli >> --- >> arch/arm64/boot/dts/qcom/lemans.dtsi | 138 ++++++++++++++++++++++++--- >> 1 file changed, 126 insertions(+), 12 deletions(-) >> >> diff --git a/arch/arm64/boot/dts/qcom/lemans.dtsi b/arch/arm64/boot/dts/qcom/lemans.dtsi >> index 808827b83553..c747dd534caa 100644 >> --- a/arch/arm64/boot/dts/qcom/lemans.dtsi >> +++ b/arch/arm64/boot/dts/qcom/lemans.dtsi >> @@ -7281,6 +7281,15 @@ compute-cb@11 { >> }; >> }; >> }; >> + >> + cooling { >> + compatible = "qcom,qmi-cooling-cdsp"; >> + >> + cdsp_tmd0: cdsp-tmd0 { > This question was already raised. Are there more than one cooling device > for the DSP? If not, drop the subnodes. Thanks Dmitry for review. Yes, Each subsystem may support multiple thermal mitigation devices through remote TMD service. So, need to define subnodes. >> + label = "cdsp_sw"; >> + #cooling-cells = <2>; >> + }; >> + }; >> }; >> >> nspb_noc: interconnect@2a0c0000 {