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[78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b8fc735e5a6sm358288666b.1.2026.02.17.05.38.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 17 Feb 2026 05:38:05 -0800 (PST) Message-ID: Date: Tue, 17 Feb 2026 14:38:03 +0100 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] arm64: dts: qcom: qcs6490-rb3gen2: Adjust tsens thermal zone configuration To: Bjorn Andersson , Manaf Meethalavalappu Pallikunhi Cc: Dmitry Baryshkov , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Gaurav Kohli , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20251215105934.2428987-1-manaf.pallikunhi@oss.qualcomm.com> <46cc0587-8eb6-4638-ad04-c05dcd56718c@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: AW1haW4tMjYwMjE3MDExMCBTYWx0ZWRfX+NwocFJukp4z 8DBlHQ99nu4wVIyHSYeANXcduz3oiL9hfAD9mMq3Cp2/7mpgsYGx5qT3rzBtDrqS+NnWGQ9Ot8I +8/uhinTkWLkN68MAd1xV+wdDklEOLOaKWJyWTTfWe5bI064RCm7l+CJvhyON8JD/StB3zpaty4 vyfUVum4PaJFtIK0Hz7n87Dp4muiKz3l5tB6tR0JbbAjzUs3z5umXOxUGdFUgjlhaanCaMFkjw7 dLQAPXq1uzGkxLW9j7Yt4NZQ8/fqVNSuT5BASbV8dGV0hDghaBN+9Qlm3/MHIDQYWTz/WLy3YM6 9AbBj7PQCf4QdBi6iZrdXggvylxBjnzLcaLiiu7PtUrBVhzX1gxULyGrnYyEcMVTNO6gdVDJPn7 wjFAZsOmoo69aaavh/ihI5UjC/7AgM06dxN7kQyv1vTIuXEhwqmIWEvWseX7uyCLXPC9tnXDp8u Fdp2jG1EkptJDxK9HZA== X-Proofpoint-GUID: dTB2V81zS2LxtoOMvAEAmirWTVlsXiYY X-Proofpoint-ORIG-GUID: dTB2V81zS2LxtoOMvAEAmirWTVlsXiYY X-Authority-Analysis: v=2.4 cv=TPNIilla c=1 sm=1 tr=0 ts=69946f40 cx=c_pps a=cmESyDAEBpBGqyK7t0alAg==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=8uoaHlvUY12WB6v6n28A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=1OuFwYUASf3TG4hYMiVC:22 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=2026-02-17_01,2026-02-16_04,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 suspectscore=0 clxscore=1015 phishscore=0 lowpriorityscore=0 malwarescore=0 priorityscore=1501 spamscore=0 impostorscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602170110 On 1/3/26 7:05 PM, Bjorn Andersson wrote: > On Tue, Dec 16, 2025 at 01:01:01PM +0530, Manaf Meethalavalappu Pallikunhi wrote: >> Hi Dmitry, >> >> >> On 12/16/2025 1:21 AM, Dmitry Baryshkov wrote: >>> On Mon, Dec 15, 2025 at 04:29:34PM +0530, Manaf Meethalavalappu Pallikunhi wrote: >>>> The QCS6490 rb3gen2 board uses the same Qualcomm QCM6490 platform >>> Is there a difference between QCS6490 and QCM6490 or between QC[SM]6490 >>> and SC7280? >> Difference is only for qcs6490-rb3gen2 (IOT ). >>> >>>> but has a different thermal junction temperature specification >>>> due to package-level differences. >>>> >>>> Update passive/hot trip thresholds to 105°C and critical trip >>>> thresholds to 115°C for various subsystem TSENS sensors. >>>> >>>> Disable CPU cooling maps for CPU TSENS since CPU thermal mitigation >>>> is handled automatically in hardware on this board. >>> Is it a peculiarity of the RB3 Gen2 or is it that Chrome devices didn't >>> do it? What about QCM6490 IDP or FairPhone FP5? >> >> Chrome devices do not perform automatic thermal mitigation, whereas all >> other boards handle it automatically. I will push another patch to disable >> cpu mitigation for all other boards other than chrome. >> > > This matches what we're doing everywhere else (i.e. rely on LMh/OSM/EPSS > to do the fast throttling of cores), so I'd expect that this should > apply to all non-Chrome boards... > > Instead of doing this for every board, can we push the cpu/cooling-maps > into e.g. sc7280-chrome-common.dtsi? I think this is the way to go > If I understand you correctly, we'd still have the desire to adjust the > temperature values, but that's a smaller per-board change. With the cooling out of the picture, the remaining delta is moving the critical trip point from 110 to 115 degC, which sure, is useful if we can use all that headroom, but it's also not a huge jump with a huge amount of noise in the DT.. Could we get a confirmation about the non-IoT kodiak accepted temperature ranges? Maybe those happen to be too high? Konrad