From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C7E3CC43331 for ; Wed, 25 Mar 2020 13:07:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9FC4820772 for ; Wed, 25 Mar 2020 13:07:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727523AbgCYNHJ (ORCPT ); Wed, 25 Mar 2020 09:07:09 -0400 Received: from mx0a-00128a01.pphosted.com ([148.163.135.77]:63930 "EHLO mx0a-00128a01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727452AbgCYNHG (ORCPT ); Wed, 25 Mar 2020 09:07:06 -0400 Received: from pps.filterd (m0167089.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 02PD1nSr005049; Wed, 25 Mar 2020 09:06:48 -0400 Received: from nwd2mta3.analog.com ([137.71.173.56]) by mx0a-00128a01.pphosted.com with ESMTP id 2ywfu5d5v4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 25 Mar 2020 09:06:48 -0400 Received: from SCSQMBX11.ad.analog.com (scsqmbx11.ad.analog.com [10.77.17.10]) by nwd2mta3.analog.com (8.14.7/8.14.7) with ESMTP id 02PD6kfi044104 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=FAIL); Wed, 25 Mar 2020 09:06:46 -0400 Received: from SCSQMBX10.ad.analog.com (10.77.17.5) by SCSQMBX11.ad.analog.com (10.77.17.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1779.2; Wed, 25 Mar 2020 06:06:45 -0700 Received: from zeus.spd.analog.com (10.64.82.11) by SCSQMBX10.ad.analog.com (10.77.17.5) with Microsoft SMTP Server id 15.1.1779.2 via Frontend Transport; Wed, 25 Mar 2020 06:06:44 -0700 Received: from localhost.localdomain ([10.48.65.12]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 02PD6fxQ027890; Wed, 25 Mar 2020 09:06:43 -0400 From: To: , , CC: , , Alexandru Tachici Subject: [PATCH v2 1/2] hwmon: pmbus: adm1266: add support Date: Wed, 25 Mar 2020 15:06:04 +0200 Message-ID: <20200325130605.2420-2-alexandru.tachici@analog.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200325130605.2420-1-alexandru.tachici@analog.com> References: <20200325130605.2420-1-alexandru.tachici@analog.com> MIME-Version: 1.0 Content-Type: text/plain X-ADIRoutedOnPrem: True X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.645 definitions=2020-03-25_05:2020-03-24,2020-03-25 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxscore=0 bulkscore=0 clxscore=1015 impostorscore=0 adultscore=0 malwarescore=0 priorityscore=1501 spamscore=0 suspectscore=0 phishscore=0 lowpriorityscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2003020000 definitions=main-2003250109 Sender: linux-hwmon-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org From: Alexandru Tachici Add pmbus probing driver for the adm1266 Cascadable Super Sequencer with Margin Control and Fault Recording. Driver is using the pmbus_core, creating sysfs files under hwmon for inputs: vh1->vh4 and vp1->vp13. Signed-off-by: Alexandru Tachici --- Documentation/hwmon/adm1266.rst | 35 +++++++++++++++++++ drivers/hwmon/pmbus/Kconfig | 9 +++++ drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/adm1266.c | 62 +++++++++++++++++++++++++++++++++ 4 files changed, 107 insertions(+) create mode 100644 Documentation/hwmon/adm1266.rst create mode 100644 drivers/hwmon/pmbus/adm1266.c diff --git a/Documentation/hwmon/adm1266.rst b/Documentation/hwmon/adm1266.rst new file mode 100644 index 000000000000..65662115750c --- /dev/null +++ b/Documentation/hwmon/adm1266.rst @@ -0,0 +1,35 @@ +Kernel driver adm1266 +===================== + +Supported chips: + * Analog Devices ADM1266 + Prefix: 'adm1266' + Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/ADM1266.pdf + +Author: Alexandru Tachici + + +Description +----------- + +This driver supports hardware monitoring for Analog Devices ADM1266 sequencer. + +ADM1266 is a sequencer that features voltage readback from 17 channels via an +integrated 12 bit SAR ADC, accessed using a PMBus interface. + +The driver is a client driver to the core PMBus driver. Please see +Documentation/hwmon/pmbus for details on PMBus client drivers. + + +Sysfs entries +------------- + +The following attributes are supported. Limits are read-write, history reset +attributes are write-only, all other attributes are read-only. + +inX_label "voutx" +inX_input Measured voltage. +inX_min Minimum Voltage. +inX_max Maximum voltage. +inX_min_alarm Voltage low alarm. +inX_max_alarm Voltage high alarm. diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index a9ea06204767..3096e46e2212 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -26,6 +26,15 @@ config SENSORS_PMBUS This driver can also be built as a module. If so, the module will be called pmbus. +config SENSORS_ADM1266 + tristate "Analog Devices ADM1266" + help + If you say yes here you get hardware monitoring support for Analog + Devices ADM1266 Cascadable Super Sequencer. + + This driver can also be built as a module. If so, the module will + be called adm1266. + config SENSORS_ADM1275 tristate "Analog Devices ADM1275 and compatibles" help diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index 5feb45806123..ed38f6d6f845 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_PMBUS) += pmbus_core.o obj-$(CONFIG_SENSORS_PMBUS) += pmbus.o +obj-$(CONFIG_SENSORS_ADM1266) += adm1266.o obj-$(CONFIG_SENSORS_ADM1275) += adm1275.o obj-$(CONFIG_SENSORS_BEL_PFE) += bel-pfe.o obj-$(CONFIG_SENSORS_IBM_CFFPS) += ibm-cffps.o diff --git a/drivers/hwmon/pmbus/adm1266.c b/drivers/hwmon/pmbus/adm1266.c new file mode 100644 index 000000000000..c1df21d564f3 --- /dev/null +++ b/drivers/hwmon/pmbus/adm1266.c @@ -0,0 +1,62 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * ADM1266 - Cascadable Super Sequencer with Margin + * Control and Fault Recording + * + * Copyright 2020 Analog Devices Inc. + */ + +#include +#include +#include +#include +#include + +#include "pmbus.h" + +static int adm1266_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct pmbus_driver_info *info; + u32 funcs; + int i; + + info = devm_kzalloc(&client->dev, sizeof(struct pmbus_driver_info), + GFP_KERNEL); + + info->pages = 17; + info->format[PSC_VOLTAGE_OUT] = linear; + funcs = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; + for (i = 0; i < info->pages; i++) + info->func[i] = funcs; + + return pmbus_do_probe(client, id, info); +} + +static const struct of_device_id adm1266_of_match[] = { + { .compatible = "adi,adm1266" }, + { }, +}; +MODULE_DEVICE_TABLE(of, adm1266_of_match); + +static const struct i2c_device_id adm1266_id[] = { + { "adm1266", 0 }, + { }, +}; +MODULE_DEVICE_TABLE(i2c, adm1266_id); + +static struct i2c_driver adm1266_driver = { + .driver = { + .name = "adm1266", + .of_match_table = adm1266_of_match, + }, + .probe = adm1266_probe, + .remove = pmbus_do_remove, + .id_table = adm1266_id, +}; + +module_i2c_driver(adm1266_driver); + +MODULE_AUTHOR("Alexandru Tachici "); +MODULE_DESCRIPTION("PMBus driver for Analog Devices ADM1266"); +MODULE_LICENSE("GPL v2"); -- 2.20.1