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Thu, 24 Sep 2026 04:41:32 -0400 From: John Erasmus Mari Geronimo To: Guenter Roeck CC: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Corbet , "Shuah Khan" , Jean Delvare , , , , Subject: [PATCH v2 0/3] hwmon: (lm75) add MAX31875 support Date: Thu, 24 Sep 2026 16:41:18 +0800 Message-ID: <20260924084121.82-1-johnerasmusmari.geronimo@analog.com> X-Mailer: git-send-email 2.44.0.windows.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-ORIG-GUID: WwSd4NVUnEMg9obAms4EEMdBpyfkURox X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTI0MDAzNiBTYWx0ZWRfXyLLuFiN1UzRh MGRPtrvpDqKwcrz+XfmBbJYnDREnwhqQmLG4BhG20U2f5QQSvQCuj+l3eJUW+QYLyJiBhVSHQ7r jlA1HcY+sznOipZos4FoAbdcVDwsZ8ILVgCJ3qBNtZdthCKFDnunJqkIDDQgfArfKDNTWoXKObV lAu9Z37ol2K093LeeJ0qsDxGI0r9++rxJhsPlZC35S/X4vVedLP93d/mq4LHoBmSE5eDc8flGIz Lg61n9EHxJ9UKVdWmphumC4RSflpb59Rbhat7dCjptq0Ofd3iC/PT8HEcEa8nLgKgYv+XNwv4Zp zmrZ6ni2TnPqEupYBoRk4XD2lNu5+jSpscX5YbrPOPSMdn8auPHsRfkASHk9w5p74IsfciWsBLW uiPl5SSllDgYZHSUnuLQlok96MUpRR59oprPJjpABAmyW2cHAOQ6wR8xj7BXoNl9bh4E6tkuLlH jVK6zA+t9epwhOY/Alw== X-Proofpoint-GUID: WwSd4NVUnEMg9obAms4EEMdBpyfkURox X-Authority-Analysis: v=2.4 cv=I8rw19gg c=1 sm=1 tr=0 ts=6ab4e24a cx=c_pps a=PpDZqlmH/M8setHirZLBMw==:117 a=PpDZqlmH/M8setHirZLBMw==:17 a=VdqzKS8jKosA:10 a=VkNPw1HP01LnGYTKEx00:22 a=0sLvza09kfJOxVLZPwjg:22 a=OmVn7CZJonkx5R5zMQLL:22 a=lmotxbxmNOxI8_FDkaQA:9 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTI0MDAzNiBTYWx0ZWRfXxDWhtJlfHscr STeuUrmqOgsHQmi3z5SqIX1vVL2ijxWclaK718EegxMezNmB62dVcDFQsZNMy052DiboLb9/rtA Ku8d9iExn/U0s4YAGt6GpNvlXCBAkBlC2/4NbmX4z9lG0sOP4BHL X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-24_02,2026-09-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1011 impostorscore=0 priorityscore=1501 spamscore=0 malwarescore=0 lowpriorityscore=0 adultscore=0 bulkscore=0 phishscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609240036 Add support for the Analog Devices MAX31875 I2C temperature sensor by extending the existing lm75 driver. The MAX31875 provides a 16-bit configuration register, selectable resolution of 8, 9, 10, or 12 bits, conversion rates of 125 ms, 250 ms, 1 s, or 4 s, and an alarm output. As suggested by Guenter Roeck, this version reworks the implementation to extend the existing lm75 driver instead of max31827, since the MAX31875 is another LM75 variant (similar to max31725/max31726) rather than a max31827-family part. Changes since v1: - Rework the implementation to use the existing lm75 driver instead of the previously selected max31827 base driver. - Add the MAX31875 Device Tree binding, documentation, and driver configuration for resolution, conversion rate, and alarm reporting. John Erasmus Mari Geronimo (3): dt-bindings: hwmon: lm75: add MAX31875 hwmon: (lm75) add MAX31875 documentation hwmon: (lm75) add MAX31875 support .../devicetree/bindings/hwmon/lm75.yaml | 1 + Documentation/hwmon/lm75.rst | 6 +++-- drivers/hwmon/Kconfig | 2 +- drivers/hwmon/lm75.c | 25 +++++++++++++++++++ 4 files changed, 31 insertions(+), 3 deletions(-) base-commit: 9955c92abe72564a49c293b1c15cd3b4f02ea6a0 -- 2.34.1