From patchwork Fri Apr 12 19:43:48 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Patrick Leis X-Patchwork-Id: 10899065 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CA12B139A for ; Fri, 12 Apr 2019 19:43:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AA82828A7E for ; Fri, 12 Apr 2019 19:43:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9E8C628BB4; Fri, 12 Apr 2019 19:43:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.5 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, USER_IN_DEF_DKIM_WL autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0AC9B28A7E for ; Fri, 12 Apr 2019 19:43:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726833AbfDLTnx (ORCPT ); Fri, 12 Apr 2019 15:43:53 -0400 Received: from mail-pf1-f201.google.com ([209.85.210.201]:43223 "EHLO mail-pf1-f201.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726843AbfDLTnx (ORCPT ); Fri, 12 Apr 2019 15:43:53 -0400 Received: by mail-pf1-f201.google.com with SMTP id i14so7038958pfd.10 for ; Fri, 12 Apr 2019 12:43:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:message-id:mime-version:subject:from:to:cc; bh=gVLYpzHO0Xc04/JAvdtllXU9ASmQMnyXdENvGXJVSj4=; b=JnnON0b/Hnqoitayuhv/pNt1i1Cqy2BrgNmlD8DZN3uB4EBYxwxdb7Hg6Kmjq9/QFq zGmTbSvxLsIYBCrpOJw0AkzTTsXk6LxQfpXO48d0CJ/0+QRRrWWRTlTeunKjudwgbeNz 3iBt5o8+a/dkXDJGzo7VVtkEntPL6++OwEByLPaH+WSl9vitX8Q0rN2gJaF0FEK/DN0V wdtvQ/MjmmWBNqfFkdzeKvunZNbpwi4E0D7bWTnMHtwKAsRhQUY7Z5CcSGZEzlju6HnY gGq6C/1amkllij1FtkEIiSWSYJL7iFCUOSgPdJisvwU/FzJ8fthlDTRetj5josbH8nTl RhBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:message-id:mime-version:subject:from:to:cc; bh=gVLYpzHO0Xc04/JAvdtllXU9ASmQMnyXdENvGXJVSj4=; b=aE62I3kggsC4JLetlpluPnVndMjgyB8UO3IU8eYA3oRum+ZCNxRfbfI+bQ7hvXQe9H lZ5IQFhhEomMkdvIpfTZ+SC+j1JQ77l7kVyJkFqVANoxLZ7LZRMHE3XV+5/kcRMdVfwB IV4jJxuATQ1S6oPYsDZX7c8jeZeymq8pK7Nu1cQoLBXu+KYIUvc6obzTw4ZFIB8hkdhl eCqnrH7SWwj6IYs5EXAA2hhVzGcFdw7NsCbzAq5A5v4J3cICdXXFFBSRyUcMR/7Jafi2 LsYqEOS+bG2ZWHDSfIvo33ngTTzhRCNbeNIEL7zF+jNs+r2X9C9Wo7ICWmMozGfjs9E5 dWYg== X-Gm-Message-State: APjAAAU9sl4GAP6X/Li9Ag+qDWceSa387qkRpd8Wb/oy9Jz+N6uFdUKQ LuF0vSJRrzWARtmJbD0RUNmRJmHkbzcr X-Google-Smtp-Source: APXvYqy/HLMm19TYkxR99+/BcxYeDENW3oiTmk3bGB5VQKPJKwa7ZuStNBVw+AeGeiA4SAssU14XPBfMe4/N X-Received: by 2002:aa7:939c:: with SMTP id t28mr1519840pfe.144.1555098231861; Fri, 12 Apr 2019 12:43:51 -0700 (PDT) Date: Fri, 12 Apr 2019 12:43:48 -0700 Message-Id: <20190412194348.225570-1-venture@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.21.0.392.gf8f6787159e-goog Subject: [PATCH v2] hwmon: (pmbus/ir38064): Add driver for Infineon IR38064 Voltage Regulator From: Patrick Venture To: venture@google.com, jdelvare@suse.com, linux@roeck-us.net, corbet@lwn.net Cc: Maxim Sloyko , linux-hwmon@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Sender: linux-hwmon-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Maxim Sloyko Add the pmbus driver for the Infineon ir38064 voltage regulator. Signed-off-by: Maxim Sloyko Signed-off-by: Patrick Venture --- v2: - Cleaned up weird tabbing behavior in doc. v1: - Initial patchset. --- Documentation/hwmon/ir38064 | 64 +++++++++++++++++++++++++++++++++++ drivers/hwmon/pmbus/Kconfig | 9 +++++ drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/ir38064.c | 60 ++++++++++++++++++++++++++++++++ 4 files changed, 134 insertions(+) create mode 100644 Documentation/hwmon/ir38064 create mode 100644 drivers/hwmon/pmbus/ir38064.c diff --git a/Documentation/hwmon/ir38064 b/Documentation/hwmon/ir38064 new file mode 100644 index 0000000000000..618779a329da0 --- /dev/null +++ b/Documentation/hwmon/ir38064 @@ -0,0 +1,64 @@ +Kernel driver ir38064 +===================== + +Supported chips: + * Infineon IR38064 + Prefix: 'ir38064' + Addresses scanned: - + Datasheet: Publicly available at the Infineon webiste + https://www.infineon.com/dgdl/Infineon-IR38064MTRPBF-DS-v03_07-EN.pdf?fileId=5546d462584d1d4a0158db0d9efb67ca + +Datasheet is not publicly available. + + +Authors: + Maxim Sloyko + Patrick Venture + +Description +----------- + +IR38064 is a Single-input Voltage, Synchronous Buck Regulator, DC-DC Converter. + +Usage Notes +----------- + +This driver does not probe for PMBus devices. You will have to instantiate +devices explicitly. + +Sysfs attributes +---------------- + +curr1_label "iout1" +curr1_input Measured output current +curr1_crit Critical maximum current +curr1_crit_alarm Current critical high alarm +curr1_max Maximum current +curr1_max_alarm Current high alarm + +in1_label "vin" +in1_input Measured input voltage +in1_crit Critical maximum input voltage +in1_crit_alarm Input voltage critical high alarm +in1_min Minimum input voltage +in1_min_alarm Input voltage low alarm + +in2_label "vout1" +in2_input Measured output voltage +in2_lcrit Critical minimum output voltage +in2_lcrit_alarm Output voltage critical low alarm +in2_crit Critical maximum output voltage +in2_crit_alarm Output voltage critical high alarm +in2_max Maximum output voltage +in2_max_alarm Output voltage high alarm +in2_min Minimum output voltage +in2_min_alarm Output voltage low alarm + +power1_label "pout1" +power1_input Measured output power + +temp1_input Measured temperature +temp1_crit Critical high temperature +temp1_crit_alarm Chip temperature critical high alarm +temp1_max Maximum temperature +temp1_max_alarm Chip temperature high alarm diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 629cb45f8557a..de87abab990e5 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -54,6 +54,15 @@ config SENSORS_IR35221 This driver can also be built as a module. If so, the module will be called ir35521. +config SENSORS_IR38064 + tristate "Infineon IR38064" + help + If you say yes here you get hardware monitoring support for Infineon + IR38064. + + This driver can also be built as a module. If so, the module will + be called ir38064. + config SENSORS_LM25066 tristate "National Semiconductor LM25066 and compatibles" help diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index ea0e39518c216..7d1fa6b3c8c93 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -8,6 +8,7 @@ obj-$(CONFIG_SENSORS_PMBUS) += pmbus.o obj-$(CONFIG_SENSORS_ADM1275) += adm1275.o obj-$(CONFIG_SENSORS_IBM_CFFPS) += ibm-cffps.o obj-$(CONFIG_SENSORS_IR35221) += ir35221.o +obj-$(CONFIG_SENSORS_IR38064) += ir38064.o obj-$(CONFIG_SENSORS_LM25066) += lm25066.o obj-$(CONFIG_SENSORS_LTC2978) += ltc2978.o obj-$(CONFIG_SENSORS_LTC3815) += ltc3815.o diff --git a/drivers/hwmon/pmbus/ir38064.c b/drivers/hwmon/pmbus/ir38064.c new file mode 100644 index 0000000000000..4b957ebb6fa71 --- /dev/null +++ b/drivers/hwmon/pmbus/ir38064.c @@ -0,0 +1,60 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Hardware monitoring driver for Infineon IR38064 + * + * Copyright (c) 2017 Google Inc + * + */ + +#include +#include +#include +#include +#include +#include "pmbus.h" + +static struct pmbus_driver_info ir38064_info = { + .pages = 1, + .format[PSC_VOLTAGE_IN] = linear, + .format[PSC_VOLTAGE_OUT] = direct, + .format[PSC_CURRENT_OUT] = linear, + .format[PSC_POWER] = linear, + .format[PSC_TEMPERATURE] = linear, + .m[PSC_VOLTAGE_OUT] = 256, + .b[PSC_VOLTAGE_OUT] = 0, + .R[PSC_VOLTAGE_OUT] = 0, + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT + | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP + | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT + | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT + | PMBUS_HAVE_POUT, +}; + +static int ir38064_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + return pmbus_do_probe(client, id, &ir38064_info); +} + +static const struct i2c_device_id ir38064_id[] = { + {"ir38064", 0}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, ir38064_id); + +/* This is the driver that will be inserted */ +static struct i2c_driver ir38064_driver = { + .driver = { + .name = "ir38064", + }, + .probe = ir38064_probe, + .remove = pmbus_do_remove, + .id_table = ir38064_id, +}; + +module_i2c_driver(ir38064_driver); + +MODULE_AUTHOR("Maxim Sloyko "); +MODULE_DESCRIPTION("PMBus driver for Infineon IR38064"); +MODULE_LICENSE("GPL");