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Tue, 26 May 2026 03:56:38 -0700 (PDT) Received: from [10.213.109.130] ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-36a71d9416csm16601070a91.3.2026.05.26.03.56.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 May 2026 03:56:37 -0700 (PDT) From: Jishnu Prakash Subject: [PATCH v2 0/2] thermal: qcom: add support for PMIC5 Gen3 ADC thermal monitoring Date: Tue, 26 May 2026 16:26:08 +0530 Message-Id: <20260526-gen3_adc_tm-v2-0-702fbac919ac@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAEh8FWoC/1WNyw6CMBREf8XctSVtecS68j8MIW25QI1Q7QWiI fy7BePCzSQnmTmzAGFwSHA+LBBwduT8EEEeD2A7PbTIXB0ZJJcFz0XGWhzSSte2GnuWCV5bo04 GCwlx8QjYuNduu5Zfpsnc0I6bYmt0jkYf3vvdLLbez5z/mWfBOEuV0VI1ymTaXDxR8pz03fq+T 2JAua7rB1ymaae/AAAA X-Change-ID: 20260514-gen3_adc_tm-410dcb98be62 To: Jonathan Cameron , David Lechner , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Amit Kucheria , Thara Gopinath , "Rafael J. Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba Cc: linux-arm-msm@vger.kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Kamal Wadhwa , David Collins , Anjelique Melendez , Neil Armstrong , Stephan Gerhold , Jishnu Prakash X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1779792992; l=3547; i=jishnu.prakash@oss.qualcomm.com; s=20251014; h=from:subject:message-id; bh=dn7IGaTgNv1nqYd2NWc8NQXcqaOvapPO++HaXqecuCM=; b=DtS+mcDVTHJooJq4awfZKREUbc3QOgeAZz0MfdjWhOrinc6mECBWr07fc0NWFu8CzfMShnEC/ n4fTKrw1S9bB40oaKxL0Eg3+wf4uoypkEd/4LWWeXNKaN5TDHZZr7Ji X-Developer-Key: i=jishnu.prakash@oss.qualcomm.com; a=ed25519; pk=g89pXdLVwRjdTeQ+uX1QzvBO346E3hQAc1N7fcTXgmk= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTI2MDA5NSBTYWx0ZWRfX56B9eNqDMx3z ZGXT6dupYH39WXrS9eaW/53jo3dzrebjEhC2+hF/vd4vm6XLzxbtQ+T01C3APhncSj44GcvpKvF HgYc+GzQAenzzyoy0fTGZz49Iy2ousQB/twjZkWN7hRdBZufdaUs9es/SnVTIyfwzZCVVTnPn+/ +s+SU0Tm0i1p5rq7sMBVkdPuSOPMIQ5pJpWvZAMGpkZzdpYDNcsIRfXNb/mDkb55Vw99MEbjK0S 90AkwzZ05Hxi9O2PMOFYMOels6tZnDv6StOBtCqvCxCywPt49AFgrWuFiLR9sA0gZUAv7OxZZs2 I1vOqddits6mqfln0RO5WUt5ucLSpRkAidz0U0StXPQu1I9U93MO9LjKJ5WbAm1UrOptQgOstH3 hs+Sfsx1PEWMcAfX+njycahnpm3NR347ZqxDgKczO4U9pXQ5xC743NdXQk2hLvzcE1G4oY+oVve sEVw3f/farvZpov+eCw== X-Authority-Analysis: v=2.4 cv=Zc4t8MVA c=1 sm=1 tr=0 ts=6a157c67 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=bC-a23v3AAAA:8 a=EUspDBNiAAAA:8 a=VwQbUJbxAAAA:8 a=t6WtGzA2ZKrDIJVor40A:9 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 a=FO4_E8m0qiDe52t0p3_H:22 X-Proofpoint-ORIG-GUID: 5LYmL2njzXR3YWloUxlJJ5HoFfo8Rnua X-Proofpoint-GUID: 5LYmL2njzXR3YWloUxlJJ5HoFfo8Rnua X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-05-26_02,2026-05-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 spamscore=0 impostorscore=0 bulkscore=0 adultscore=0 phishscore=0 clxscore=1015 priorityscore=1501 lowpriorityscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605130000 definitions=main-2605260095 Support for the main PMIC5 Gen3 ADC driver has been merged now. In order to complete adding support for the Gen3 ADC_TM auxiliary driver, some more changes are needed in the main driver, mainly to improve its shared interrupt's handling mechanism. Patch 1 simplifies the interrupt handling in the main ADC driver by declaring the interrupt as a shared one and dropping the logic used to call the ADC_TM notifier for handling ADC_TM interrupts on the first SDAM whose interrupt is shared. Patch 2 adds the auxiliary thermal driver which supports the ADC_TM functionality of ADC5 Gen3. Signed-off-by: Jishnu Prakash --- Changes in v2: - Updated IRQ request API to request threaded interrupt in main ADC driver, keeping primary handler NULL and using existing handler as threaded handler, to avoid kernel warning for using IRQF_ONESHOT with non-threaded interrupts. - Link to v1: https://patch.msgid.link/20260515-gen3_adc_tm-v1-0-39ba29f9b4ab@oss.qualcomm.com Link to previous ADC5 Gen3 patch series: V10: https://lore.kernel.org/all/20260130115421.2197892-1-jishnu.prakash@oss.qualcomm.com/ Patches 1-3 of the above series have been merged now. Patch 4 received some later comments which are addressed in this series. Patch 2 of this present series is derived from patch 4 of the above series, with some changes. Changes since V10: - Added patch 1 of this series to make the SDAM0 IRQ a shared IRQ and remove ADC_TM notifier, as suggested by Daniel. - Made following changes to address Daniel's comments on patch 4 in previous series: - Added IRQ request call for SDAM0 IRQ, marking it as a shared IRQ. - Split interrupt handler into main and threaded IRQ functions. - Removed workqueue used in IRQ handler and its cleanup, instead use threaded part of handler for same functionality. - Removed callback function exposed to main ADC driver for TM IRQ handling on first SDAM. - Removed workaround to capture temperature causing threshold violation inside interrupt handler and then return this on next get_temp() call. - Removed all error prints in interrupt handler and updated return value to IRQ_NONE in case of errors. - Removed explicit check to disable ADC_TM channel in case of (INT_MAX/-INT_MAX) high/low thresholds being set in .set_trips callback. - Also addressed Jonathan's comments on V10 patch 4 related to header file inclusion and for() loop iterator initialization. - Dropped Reviewed-by tag from Jonathan on V10 patch 4 due to significant changes made now. - Added a status clearing register write in adc_tm5_gen3_disable_channel(), missed earlier. - Moved cleanup action to disable ADC_TM channels in driver probe to just before IRQ requests, for proper utilization. --- Jishnu Prakash (2): iio: adc: qcom-spmi-adc5-gen3: Share SDAM0 IRQ with ADC_TM auxiliary driver thermal: qcom: add support for PMIC5 Gen3 ADC thermal monitoring drivers/iio/adc/qcom-spmi-adc5-gen3.c | 66 ++-- drivers/thermal/qcom/Kconfig | 9 + drivers/thermal/qcom/Makefile | 1 + drivers/thermal/qcom/qcom-spmi-adc-tm5-gen3.c | 437 ++++++++++++++++++++++++++ include/linux/iio/adc/qcom-adc5-gen3-common.h | 2 - 5 files changed, 466 insertions(+), 49 deletions(-) --- base-commit: e7ae89a0c97ce2b68b0983cd01eda67cf373517d change-id: 20260514-gen3_adc_tm-410dcb98be62 Best regards, -- Jishnu Prakash