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[199.106.103.52]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-1ac1a9e2ed3sm41634001c88.19.2026.11.03.05.55.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 03 Nov 2026 05:55:28 -0800 (PST) From: Shawn Guo To: Bjorn Andersson Cc: Konrad Dybcio , Abel Vesa , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bartosz Golaszewski , Dhruvin Rajpura , devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Shawn Guo Subject: [PATCH RFC v2 2/2] arm64: dts: qcom: nord-rrd: Add PMIC ADC thermistor channels Date: Tue, 3 Nov 2026 21:54:45 +0800 Message-ID: <20261103135445.2049110-3-shengchao.guo@oss.qualcomm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20261103135445.2049110-1-shengchao.guo@oss.qualcomm.com> References: <20261103135445.2049110-1-shengchao.guo@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-Transfer-Encoding: 8bit X-Proofpoint-ORIG-GUID: L99BHTouiYZNurRh10B54FQmhCjZffpt X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMTAzMDA1NSBTYWx0ZWRfX3cQCT/AQLM6w Hb74uDMeXVTIs21PRiYeXLFHxycRVSkaTRdjebLx4FBEhnWrfBD6fn3IzA+C+MEEJza3eQC8sH2 ss5Fe/8flZhhsqTR3W4WMvA6wXzOE6fF3pJ0rEwTM267gxK8wnwjmxJSLtL0JYs8eKF03NUrqz6 ZLwFok7hJvgbr87SG4cm1zkqkIDg5TBQJgbxalR3wlLjhSrck5GKmc8+I19WoKon6U5tRh579ca ucinwIlR6h87rDuugUIFLweMpyARHVD+2e0G7PGWIMw3b1r84/YJPlKjgTBC22XMsAz07ULDw+6 TiiifVqR6pEVB8mmStsqDUP4kgvg21ZSoOKGDocWupqyGWJ08MN0TLDNfdi94aSwHt1qa+uOMDL +lfFQZkwsnjAUE6FKD8OH+FaFxjiaCHhJqBq0x9Q0KI2T0jY+2DS7CXgo/Hza9L8IcW7V+jgQvJ 9SoC1wZRVXAICkqTsVw== X-Proofpoint-Spam-Info: AW1haW4tMjYxMTAzMDA1NSBTYWx0ZWRfX7EKMrfovtbiB 035k6Kpxue6x8Nog6B6zEybSGtOg9K8ef2k+sEA86FrO0n47qjD5GZodT7vIxUvs+EQ2/Sk4e7e CA1ilwNMEGd33FzHuwSqPlkkp1Lc6T0= X-Proofpoint-GUID: L99BHTouiYZNurRh10B54FQmhCjZffpt X-Authority-Analysis: v=2.4 cv=NZlzRGD4 c=1 sm=1 tr=0 ts=6ae9e7d2 cx=c_pps a=Uww141gWH0fZj/3QKPojxA==:117 a=b9+bayejhc3NMeqCNyeLQQ==:17 a=zJRp6_cAMcgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=81vGQKYGPs5K2LOyq8AA:9 a=PxkB5W3o20Ba91AHUih5:22 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_02,2026-11-03_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 bulkscore=0 phishscore=0 priorityscore=1501 suspectscore=0 clxscore=1015 adultscore=0 lowpriorityscore=0 impostorscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610300000 definitions=main-2611030055 On Nord RRD, three PMAU0102 (Kai_MV) AMUX pins are wired to thermistors: Kai instance E's AMUX1 (SDRAM3 THERM) and Kai instance I's AMUX1/AMUX2 (SDRAM1 THERM, UFS THERM). The remaining Kai AMUX pins monitor voltage rails. Describe the thermistor channels with qcom,adc-tm and add a thermal zone for each. Signed-off-by: Shawn Guo --- arch/arm64/boot/dts/qcom/nord-rrd.dts | 84 +++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/nord-rrd.dts b/arch/arm64/boot/dts/qcom/nord-rrd.dts index 47978df0af92..ddea691f1c6f 100644 --- a/arch/arm64/boot/dts/qcom/nord-rrd.dts +++ b/arch/arm64/boot/dts/qcom/nord-rrd.dts @@ -53,6 +53,62 @@ bi_tcxo_ao_div2: bi-tcxo-ao-div2-clk { clock-div = <2>; }; }; + + thermal-zones { + sdram3_thermal: sdram3-thermal { + thermal-sensors = <&pmau0102_e_adc ADC5_GEN3_AMUX1_THM_100K_PU(4)>; + + trips { + trip0 { + temperature = <70000>; + hysteresis = <2000>; + type = "hot"; + }; + + trip1 { + temperature = <90000>; + hysteresis = <2000>; + type = "hot"; + }; + }; + }; + + sdram1_thermal: sdram1-thermal { + thermal-sensors = <&pmau0102_i_adc ADC5_GEN3_AMUX1_THM_100K_PU(8)>; + + trips { + trip0 { + temperature = <70000>; + hysteresis = <2000>; + type = "hot"; + }; + + trip1 { + temperature = <90000>; + hysteresis = <2000>; + type = "hot"; + }; + }; + }; + + ufs_thermal: ufs-thermal { + thermal-sensors = <&pmau0102_i_adc ADC5_GEN3_AMUX2_THM_100K_PU(8)>; + + trips { + trip0 { + temperature = <70000>; + hysteresis = <2000>; + type = "hot"; + }; + + trip1 { + temperature = <90000>; + hysteresis = <2000>; + type = "hot"; + }; + }; + }; + }; }; &apps_rsc { @@ -377,6 +433,34 @@ rtc@32 { }; }; +&pmau0102_e_adc { + channel@444 { + reg = ; + label = "pmau0102_e_sdram3_therm"; + qcom,ratiometric; + qcom,hw-settle-time = <200>; + qcom,adc-tm; + }; +}; + +&pmau0102_i_adc { + channel@844 { + reg = ; + label = "pmau0102_i_sdram1_therm"; + qcom,ratiometric; + qcom,hw-settle-time = <200>; + qcom,adc-tm; + }; + + channel@845 { + reg = ; + label = "pmau0102_i_ufs_therm"; + qcom,ratiometric; + qcom,hw-settle-time = <200>; + qcom,adc-tm; + }; +}; + &qupv3_0 { firmware-name = "qcom/nord/qupv3fw.elf"; -- 2.43.0