From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D23452EBBA4 for ; Thu, 29 Jan 2026 13:40:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769694061; cv=none; b=CnF1o09YyAjvGooC8NnAvuCMMWUdgaGjc+AlBiO9m1RjRvrQtX87ndr1q10PFBwpVkp/i3IFOFOOhCAbEDcqwUEA+jzvLFV8PRwFOgYnkXt3JLLi0E3aItKnuVmmB/Dq5irbJK0vCvQO7n0SPpwwNxN62eCpvMUMT69XLiW7mgU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769694061; c=relaxed/simple; bh=vWejJ6RINCFssuqUgSCvnocLdwpH/AOaM6RJ6UgJySw=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=cNxW4tjPJUhZHow9CzbJXhbPVohspgD74y6ZSQouRdy3AB0LBpY4Kfmip0S3k8Jsb/CrNKot4dL0VhQN5CVB/Hxukw+wrtu2Z1JyK4j5Cvr5VOnAALN7J+BCYhFgqbhTwUupxNYMuT6/QSep9HM41azRSRtujkXvbW4Ps5qUoHM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=MGnLjHQj; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=bw6Ib9Sh; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="MGnLjHQj"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="bw6Ib9Sh" Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 60TAKZmW3674068 for ; Thu, 29 Jan 2026 13:40:58 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= SptoXrg8ov3mPkWXiaAkMD6y48psr6SnVN8ENdgkWXU=; b=MGnLjHQjCetdxPXy Syh6kFA/gjeF3dLsKEpVORRcCe0+DtwazUvZ3GIJOSESyvZxRk5mV48MKnOpgapj DUOFWml8+LTjsbmVw90jzTiR9+5FpF9+w/+XE6m5k9+88+tgjGj0yTQo5F0iJqe9 mQusoB+ZEq060YVX/uwU6worJQtAOUBp2tdxFJqcafcUezIqh2J2a2jAOZjEXEmd sbAQkAyIdOSqoD02Rm8Fs3kFZOw1Qe6O8BH1YAVk+ZQvrydvVv+B6RqMAKxgA97I oFf5QRohywAJTSoc6uSu7hoHPd55Nn3mnZH5+D2lhIbWkix8AA1gdRpBw1M1tiul zxxI/A== Received: from mail-pf1-f199.google.com (mail-pf1-f199.google.com [209.85.210.199]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4c05q7gh5t-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Thu, 29 Jan 2026 13:40:58 +0000 (GMT) Received: by mail-pf1-f199.google.com with SMTP id d2e1a72fcca58-81d9b88caf2so870011b3a.1 for ; Thu, 29 Jan 2026 05:40:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1769694057; x=1770298857; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=SptoXrg8ov3mPkWXiaAkMD6y48psr6SnVN8ENdgkWXU=; b=bw6Ib9ShVQPc/LYaxN1369a3n3dhvt2MflBgjxWfnSBsCsDfZmKlPp769sJomFUT1B auN8zwmaZyPvFSoqWcIa2VLbcTOzDKCJzqRdZqK7iMi3NgYAivTmDSWsEQDc5ogJ1DZe n/ydtqGTMe1Nc98Af8/3VfM5LNHmL+Kopo5xZGZ/xv2ohRD5MsXrZX5ZbAueY4Jp/e0h TO/BhjLTbgGYu4dd0O3opoSOWFhppyBm7KgjDTmyHqDBXCIeOhwf7TZmghmymj30KShi Tb7U/AbPMdO0kzC0CEp8NZhF5M6+VYyG/BhBQw5bMbHt2zy8/dKTsLvZAn1Gkn6vekso YgBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769694057; x=1770298857; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=SptoXrg8ov3mPkWXiaAkMD6y48psr6SnVN8ENdgkWXU=; b=hpR8p8ddsF+Js7NDWYW8Amjmkujm0fLOJJqlgAvR1m8AWO/iNBk80VbNaWDFgPHkxm F7ZE3pLwz4OI81bodwrs1e1ihvPHnbdd6Zk89YM5QaRdkxi/j4FzJSdUlTAw2i1W2GOD ozs2RPf8LQpPO5OhmxrIhbEHexcNIRyiZmf3N/9cxAhLZsiTN2UcloBnjzLmASIJq+6W 4FMxlQ1akfJSNmnxrEw3Uoluf6YJwlikeDCQfUEZY4ntrWobmfj2b9PYu/5hyKzgVMMm eU7C/yNW7s4CswJF2INZyR3K4wbo6Fd1+ceW82LgcMzpGmEz6Ibf8MdKGVoprUdtsHTA wONQ== X-Forwarded-Encrypted: i=1; AJvYcCXbNw2vNdsapArlLc9OoGY6ztGYmGdLr9TpW3DqtY4aX1WZ3zWEC7nN6ODHNtfN4GKTE4MCHyrZGEmnTUY=@vger.kernel.org X-Gm-Message-State: AOJu0YwRjshfR9Ti303XHQ9tKAOLXPlWvOkz6q5fnG8oNZaXYA6G4Pxf iniXF6vxArFete0s1eVSQcodpTRFzmpd6cNgcj6IUNttOvOb57bxDbzQP6B0gs4Uo0CyDiDdWt+ z0Nns60htxHZhixsJ7azIGx/OA2cN67eCyU52899V1a12yhd3ZDhHPWv2bVsN+gCr0Oo= X-Gm-Gg: AZuq6aL8IZlNwaRNBhz3QofZd0lnxVl2G+fN6QkIR4umKXfoilXUnUABpbPxsLCIELf K2YPD+84nIz7NkVYjcM1PyDa3kmFSe3g2ySqwXpgCdAYAY8CKJDuUHNroYjI7Iuc/ZMc47mF6ad kWoVwde1yMio7EqdyATjLFpDIGDTOyQ1mKVnD+69lcdbBm819i4b//Hr6LRI8dAu1PSgDn2/qpH Vm/OmpjV32fZBIehU9crjDo2WSZDreZ05iUySUNgocgwI58RV/ym8VG5X6Al5s+OjkT3XOezXZ3 A9wtTVZKNK/6RQfBWOVtETPAm2S3Po3luz74nBKCpvWhVueVvkEaQQKh+2Aw1fAY+KSZRt/PlON FS7kQ4sRcc+dHsaH8D5ghi7/QEAkBK6apnnfx5/w= X-Received: by 2002:aa7:9066:0:b0:7e8:43f5:bd39 with SMTP id d2e1a72fcca58-823692b2103mr9847391b3a.37.1769694057328; Thu, 29 Jan 2026 05:40:57 -0800 (PST) X-Received: by 2002:aa7:9066:0:b0:7e8:43f5:bd39 with SMTP id d2e1a72fcca58-823692b2103mr9847356b3a.37.1769694056847; Thu, 29 Jan 2026 05:40:56 -0800 (PST) Received: from [192.168.1.6] ([106.222.229.24]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82379bfcaadsm6048711b3a.37.2026.01.29.05.40.51 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 29 Jan 2026 05:40:56 -0800 (PST) Message-ID: <62666d7e-7b8a-417e-8224-4cc69b3e7c29@oss.qualcomm.com> Date: Thu, 29 Jan 2026 19:10:49 +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> <3a1b3a2b-d73a-4dae-b866-14abec2ff18d@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-Proofpoint-GUID: HPGSZ4ZteKBAB3kbYawK83C8aaoi0vzM X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTI5MDA5MyBTYWx0ZWRfX8tETvKcHHiHZ K+ezQ0DTz0bte28YdWQ2PU9UJ/mG6SqBuv9zSIZd0QYJ8x/JRzdYNZI7boKjyOgVNib1LQYOvCG l69I/oxnVx02Q1D83tyVyym68WBD0HzpgURCiGcc8Yrwdn66dk4OiBRY90mX6Pp8WNHgG1gPvIT cIeYLc3qSmHjJiE8l09jZQPp92APKXwJ2j1EhbYwHLqrGbUhWDFGaZAkQrlpDrkvDkXGCa7nmUb EddkYKKRVx56fy+JH/pD7N2m2YTB2z85Wym/kOGEEKGhrCR63mMXR8BH9o/QqVXezpuMKn6vn+Z jA6uZ+tyNzeKLjVvXX+pQ5utZ8pnyfGWxJROCipgIG0CJciZcYxK/aPBrYHtdJ8cylHa8sHg11U MOez9wJKTxkdP5CBRpAvYO1s1IPz/yi7J2b5XhwiCJ/jVxG7d+SKdkAMQurH6/wCpv3eLisRv0t b9AkCuL3SJkIyt59QMw== X-Authority-Analysis: v=2.4 cv=donWylg4 c=1 sm=1 tr=0 ts=697b636a cx=c_pps a=WW5sKcV1LcKqjgzy2JUPuA==:117 a=EBd7WcfsMYPMwvoCMWz0vA==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=Zput9ccCDsYeypLpkN8A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=OpyuDcXvxspvyRM73sMx:22 X-Proofpoint-ORIG-GUID: HPGSZ4ZteKBAB3kbYawK83C8aaoi0vzM 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 adultscore=0 clxscore=1015 suspectscore=0 spamscore=0 impostorscore=0 bulkscore=0 priorityscore=1501 phishscore=0 lowpriorityscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2601290093 On 1/29/2026 5:59 PM, Dmitry Baryshkov wrote: > On Thu, Jan 29, 2026 at 05:40:56PM +0530, Gaurav Kohli wrote: >> 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. > May or does? It does support. that's why need child node to trigger different mitigation. > >> So, need to define subnodes. >> >> >>>> + label = "cdsp_sw"; >>>> + #cooling-cells = <2>; >>>> + }; >>>> + }; >>>> }; >>>> nspb_noc: interconnect@2a0c0000 {