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[199.106.103.52]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-36a428ecb61sm39999277eec.10.2026.11.03.00.21.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2026 00:21:54 -0800 (PST) Date: Tue, 3 Nov 2026 16:21:49 +0800 From: Shawn Guo To: Konrad Dybcio Cc: Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bartosz Golaszewski , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Dhruvin Rajpura Subject: Re: [PATCH RFC] arm64: dts: qcom: nord: add ADC-TM thermistor channels for Nord PMICs Message-ID: References: <20261028150103.520428-1-shengchao.guo@oss.qualcomm.com> <34479df5-3f4f-485e-8204-3744a09ce08d@oss.qualcomm.com> 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 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <34479df5-3f4f-485e-8204-3744a09ce08d@oss.qualcomm.com> X-Proofpoint-Spam-Info: AW1haW4tMjYxMTAzMDAzMyBTYWx0ZWRfX6WzALKjlvJ/0 adv1m7PvdZ+ohcDSb32NmjsQCEg4icbzJETJK7HZ/JEwO4f7HWdurHWV6zUB+0l4fj4Ws9HFH5D CGSynnkQ3RXr+eExmdPq2Yp0G8vkfLQ= X-Proofpoint-ORIG-GUID: LQQPTYYM7Fgl1qTjkatdYrr6HOr590Tk X-Authority-Analysis: v=2.4 cv=F73C5ahN c=1 sm=1 tr=0 ts=6ae999a4 cx=c_pps a=PfFC4Oe2JQzmKTvty2cRDw==:117 a=b9+bayejhc3NMeqCNyeLQQ==:17 a=kj9zAlcOel0A:10 a=zJRp6_cAMcgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=EUspDBNiAAAA:8 a=JDAaRAOIzmlwRyo0OuIA:9 a=CjuIK1q_8ugA:10 a=6Ab_bkdmUrQuMsNx7PHu:22 X-Proofpoint-GUID: LQQPTYYM7Fgl1qTjkatdYrr6HOr590Tk X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTAzMDAzMyBTYWx0ZWRfX1bUywwTJWqwo SB5EvTPPLS1oXkthM19Un0yOg0d36szM1cU6rJMy+dayBmOOD7gh1yu0sFDZDiq5DZJj5ePVCjV JxReol3zFRd7b1LZtTCpScLj6WOe7DE+YmWnz7MQV35k62cIfA+UBiHeiTmvFk1O9ewXBMynj+7 0YRMWFEC0pI3cBrKv7Wzfwfsi6lWp/xXQaVNW+M3b/CjGCEMjvJIUYjTF4pz3qypec3Z5agd1bL BuP5SweeofHVvnNa39HxdSKNbTmjV8xY0c5289MoGLzNsEyH2XJl2Gj4KkSn+uUXZsu716vZO+C cPUe1w1jyqMs22D1JkEmDwwp8A1UeyWOPj2Na8ub7uvTXf78cuuRtrPbT7RXyr2dfxIVHioGFeY I7RCBVZPZ/umyWT3M8bjgJtludGJABiOAAnRqca2OrLBfILhUkl8HnagaKlaR8LmS7s1ds6rd1P uvZ5qpqrlfLMS7Fls0g== 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=2026-11-03_01,2026-11-02_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 lowpriorityscore=0 spamscore=0 bulkscore=0 clxscore=1015 impostorscore=0 adultscore=0 suspectscore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610300000 definitions=main-2611030033 On Mon, Nov 02, 2026 at 12:54:37PM +0100, Konrad Dybcio wrote: > On 10/28/26 4:01 PM, Shawn Guo wrote: > > From: Dhruvin Rajpura > > > > PMAU0102 (Kai_MV) and PMM8650AU's Kobra_MM ADC5 Gen3 controllers only > > expose REF_GND/1P25VREF/DIE_TEMP calibration channels; none of their > > AMUX thermistor pins are wired up, so none of the board thermistor > > rails feed the thermal framework. > > > > Only 3 AMUX pins are actually wired to thermistors on Nord, all on > > Kai and none on Kobra: Kai instance E's AMUX1 (SDRAM3 THERM) and Kai > > instance I's AMUX1/AMUX2 (SDRAM1 THERM, UFS THERM). Kai's other AMUX > > pins are either DO_NOT_USE or wired to voltage-rail monitors, not > > thermistors, so add only these 3 channels. > > These thermistors seem to concern board-side thermistors, not > channels coming straight from the PMIC, so these additional > thermistors belong in the board DT Indeed! The AMUX wiring is board specific. I will send v2 to keep only #thermal-sensor-cells in pmau0102-nord.dtsi (for all Kai ADC instances, as it is a PMIC capability), and move the thermistor channels and thermal zones into the board DTS. Thanks for the review, Konrad! Shawn