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Fri, 09 Oct 2026 07:56:40 -0400 (EDT) Received: from ASHBMBX9.ad.analog.com (ASHBMBX9.ad.analog.com [10.64.17.10]) by nwd2mta3.analog.com (8.14.7/8.14.7) with ESMTP id 699BudlV041937 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Fri, 9 Oct 2026 07:56:39 -0400 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBMBX9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.37; Fri, 9 Oct 2026 07:56:39 -0400 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server id 15.2.1748.37 via Frontend Transport; Fri, 9 Oct 2026 07:56:39 -0400 Received: from JGERONI2-L01.ad.analog.com ([10.66.6.190]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 699BuPt7014045; Fri, 9 Oct 2026 07:56:28 -0400 From: John Erasmus Mari Geronimo To: CC: , , , , , , , , , Subject: [PATCH v3 0/3] hwmon: (lm75) add MAX31875 support Date: Fri, 9 Oct 2026 19:56:14 +0800 Message-ID: <20261009115617.1976-1-johnerasmusmari.geronimo@analog.com> X-Mailer: git-send-email 2.44.0.windows.1 Precedence: bulk X-Mailing-List: devicetree@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-Spam-Info: AW1haW4tMjYxMDA5MDA0NyBTYWx0ZWRfX9netB78osWBQ YJTVYPpRCLgYOjO5vWkISCOH8GHM2COvGWWlSbbvif84t/A9Qo3NDq9rZP4vFz/LpOZ6gnMoPqF D4jYYEviDts4QBnmq2mTXOkFGZaBxfRXqB2INECWfJdR0uRpeXCI X-Proofpoint-GUID: IwRi8EF7OfDqMu1wBZSyAYBwy1uxIoTG X-Authority-Analysis: v=2.4 cv=GtfXaU1C c=1 sm=1 tr=0 ts=6ac8d679 cx=c_pps a=PpDZqlmH/M8setHirZLBMw==:117 a=PpDZqlmH/M8setHirZLBMw==:17 a=660iZSQnnn4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=0sLvza09kfJOxVLZPwjg:22 a=uXIjobp8t2wMuQ0fPvqm:22 a=GK3B-LJJXsG6dUpCVUAA:9 X-Proofpoint-ORIG-GUID: IwRi8EF7OfDqMu1wBZSyAYBwy1uxIoTG X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDA5MDA0NyBTYWx0ZWRfX9ZBbB/LOAhmS 2xSSf8lE1SIi7FwRXw5nND+JwlzqXpBYufvEen8KDte5Tn2juxtO104OF+vqMvI28iuLVIGENZb Z+2G3U5i4I2Sc2ht12WmDlBSDX1p5bccIofSdh7NSdSldKvj1En9xZagLc+9hytcUAx/h5IiG0P I2n9ldBW1pam1+jRl2I17zgslY/PL2NXSLESRVryrhXjmT+hvI2PJt+ApYmZwA+XvJlzzteCMJn Uhad9WAUJAobXElBxS3NK3BGIB/yFYaLzh2HtUI7v2yuManEdsayqyWZSAtRPt8rLn2LYcoFHiU rffIkHcxw8XRJikWicnrEEs1/MQAzsUL357MbzAXIk5o309LorkekMR13wkp7h5RNe95ggshZsE 9Mf48WqEHZKvREYZC5ykN198yFFvfqC5PREFChev9HCYOvZU0FR2rGooYXZ7MaIi+nbb+RQmr05 enUUj2lq+F5XN/Ek9FA== 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=2026-10-09_03,2026-10-08_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 lowpriorityscore=0 suspectscore=0 priorityscore=1501 impostorscore=0 adultscore=0 clxscore=1015 malwarescore=0 phishscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610020000 definitions=main-2610090047 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. Changes since v2: - dt-bindings: expand the commit message to explain why the MAX31875 needs its own compatible string instead of reusing an existing lm75-family one, and pick up Conor Dooley's Acked-by given conditional on that fix. - driver: drop the bogus .resolutions table, which incorrectly tied resolution to the sample-time index even though the two are independently configurable on this chip (Guenter Roeck). - driver: use the BIT() idiom for the alarm bit read to match the rest of the file (Guenter Roeck). 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 | 24 +++++++++++++++++++ 4 files changed, 30 insertions(+), 3 deletions(-) -- 2.34.1