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([2a05:6e02:1041:c10:3887:4025:a805:2ac9]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48e25835404sm7092835f8f.42.2026.10.21.09.20.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 21 Oct 2026 09:20:56 -0700 (PDT) Message-ID: <2d885d41-7d05-458c-8364-e206dab12792@oss.qualcomm.com> Date: Wed, 21 Oct 2026 18:20:55 +0200 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3] arm64: dts: qcom: x1e78100-thinkpad-t14s: Add thermal zones for PMICs To: Stephan Gerhold Cc: andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, johannes.goede@oss.qualcomm.com, conor+dt@kernel.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Mark Pearson References: <20261014193524.5590-1-daniel.lezcano@oss.qualcomm.com> Content-Language: en-US From: Daniel Lezcano In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Authority-Analysis: v=2.4 cv=aI5lOr9m c=1 sm=1 tr=0 ts=6ad8e66b cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=OaStsYZM47bEMq8ebD0A:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 X-Proofpoint-ORIG-GUID: X5TmgqfeKcAzFODpEZJzmj7Ng7eXymFk X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDIxMDA2NSBTYWx0ZWRfX9Lv8nOQN3Fyi FQRNlXMaGSDi56Ac4XRQsGRKPk8l3ofb4JbQDseN+fFgX8HTzqnLWRrajJ00p5N/w4gBE0GS56a xGvwFcHxqZRDRtvuxhNb6qJsgUNafqjNH8DEr9naLz+rZFvPkxIzAXmPK84jFLwwpzK0gd5J/J+ H+t9SMjvWq+VieefivUryxyHe7rekl0QUBiuj1hAvFVhsZOy5D4aEp4Sk8o3ILUNtF0OVHuBRQV 5g+TAyatb0q9+aZLf8Bwkj0CNhFiuaHmR1kkiLTTuNfb3Mn5es4D0aMncp2Vt8Dx1/SHvl9Dd9n A1epp1i+sMLs92bfNI+RQ8k7X0v0y8mut41rsdKbAkk6GHr21OQaOWN5SgKt4FHFzC5+oGhkHPU PVh4dDhutfgaT40RdW9NN7hcdvMz+cAEdQyvKBdMQKq6mRAznm3gkn9fD9B0vqa5MCrCBgLQE1D 96yiEdq74s5SjMcS02A== X-Proofpoint-GUID: X5TmgqfeKcAzFODpEZJzmj7Ng7eXymFk X-Proofpoint-Spam-Info: AW1haW4tMjYxMDIxMDA2NSBTYWx0ZWRfX58WO1Gr7WCkV EjPUeukIrBc5mAM/QP+DukzKJoAKfb4CrH47Di9ZdmaFV9Jjhj/uV260FXtrP5p/9tepKV9A4pa n7V9gEDa29uYLhL6PRNbkRH49P1C6I0= X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-10-21_04,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 clxscore=1015 impostorscore=0 spamscore=0 bulkscore=0 malwarescore=0 suspectscore=0 adultscore=0 phishscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610210065 On 10/21/26 10:49, Stephan Gerhold wrote: > On Tue, Oct 20, 2026 at 06:08:56PM +0200, Daniel Lezcano wrote: >> >> Thanks Stephan for the additional information, that's very helpful. >> >> We currently have an urgent thermal issue on this platform, and getting this >> thermal mitigation upstream is important to prevent overheating under >> sustained workloads. >> >> Would it be acceptable to address the sensor naming and description >> improvements in a follow-up patch, so that we can get the thermal protection >> in place first? >> >> Of course, if any of these changes are critical for the correctness of the >> thermal mitigation, we should address them now. >> > > I have no intention to delay this patch. In fact, since I'm using the > latest unmodified stable kernel on my T14s, I'm also suffering from > these thermal issues. :-) > > On the other hand, we are at the beginning of the merge window and Bjorn > is unlikely to queue patches until that ends. The changes that > I suggested are purely cosmetic (the names of the thermal zones), there > is no need to repeat the thermal validation. The throttling behavior > will be identical no matter which name is used for the thermal zones. > > IMO we should use the remaining time until the merge window ends to > correct the naming to avoid any confusion for people reading the patch > once it lands. Ok, fair enough I propose the following names for the thermal zone: dram-board-thermal gpu-board-thermal fan-board-thermal wwan-board-thermal chg-board-thermal cpu-board-thermal typec-board-thermal so we can capture with the name the ones related to the non-on-die sensors Sounds good ?