From patchwork Wed Apr 12 15:33:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Matyas, Daniel" X-Patchwork-Id: 672978 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 11F1AC77B6F for ; Wed, 12 Apr 2023 15:35:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229775AbjDLPfk (ORCPT ); Wed, 12 Apr 2023 11:35:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39834 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229694AbjDLPfk (ORCPT ); Wed, 12 Apr 2023 11:35:40 -0400 Received: from mx0a-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F04D359D3; Wed, 12 Apr 2023 08:35:11 -0700 (PDT) Received: from pps.filterd (m0167089.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 33CDuwAP011904; Wed, 12 Apr 2023 11:34:18 -0400 Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 3pu5687k7f-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 12 Apr 2023 11:34:17 -0400 Received: from ASHBMBX8.ad.analog.com (ASHBMBX8.ad.analog.com [10.64.17.5]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 33CFYE0B017828 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 12 Apr 2023 11:34:14 -0400 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBMBX8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14; Wed, 12 Apr 2023 11:34:13 -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 15.2.986.14 via Frontend Transport; Wed, 12 Apr 2023 11:34:13 -0400 Received: from daniel-Precision-5530.ad.analog.com ([10.48.65.214]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 33CFXucv019897; Wed, 12 Apr 2023 11:33:58 -0400 From: Daniel Matyas CC: Daniel Matyas , Jean Delvare , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Jonathan Corbet , , , , Subject: [PATCH v2 0/2] Hwmon driver for MAX31827 temperature switch Date: Wed, 12 Apr 2023 18:33:30 +0300 Message-ID: <20230412153334.181852-1-daniel.matyas@analog.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-GUID: ytevDmHDrQgOkN9R7dUEIKcEiH-2py2b X-Proofpoint-ORIG-GUID: ytevDmHDrQgOkN9R7dUEIKcEiH-2py2b X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-04-12_07,2023-04-12_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 impostorscore=0 mlxlogscore=999 lowpriorityscore=0 phishscore=0 spamscore=0 suspectscore=0 priorityscore=1501 mlxscore=0 malwarescore=0 clxscore=1011 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2303200000 definitions=main-2304120137 To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org There are new functionalities: max_alarm, min_alarm and update_interval. Modified enable attribute: it switches between 1Hz periodic conversions and shutdown mode. When requesting a temperature read in shutdown mode 1shot is triggered, the driver waits until the conversion is completed and then displays the read value. Added new write_alarm_val function which puts the device in shutdown mode, modifies the value of an alarm attribute and the reenables the device with the previous configurations. I used more bitwise operations in this functions instead of regmap_update_bits, because this way only 2 write and 2 read operations are performed. With regmap_update_bits 3 write operations and 2 read operations would be performed. Added support for the other 2 chips from the datasheet: max31828, max31829. Added documentation for the driver. Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/max31827-max31829.pdf *** BLURB HERE *** Daniel Matyas (2): dt-bindings: hwmon: add MAX31827 hwmon: max31827: add MAX31827 driver .../bindings/hwmon/adi,max31827.yaml | 51 +++ Documentation/hwmon/max31827.rst | 88 +++++ MAINTAINERS | 9 + drivers/hwmon/Kconfig | 11 + drivers/hwmon/Makefile | 1 + drivers/hwmon/max31827.c | 324 ++++++++++++++++++ 6 files changed, 484 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/adi,max31827.yaml create mode 100644 Documentation/hwmon/max31827.rst create mode 100644 drivers/hwmon/max31827.c