From patchwork Mon Feb 14 12:40:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcello Sylvester Bauer X-Patchwork-Id: 12745510 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 639EEC4332F for ; Mon, 14 Feb 2022 12:41:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233529AbiBNMld (ORCPT ); Mon, 14 Feb 2022 07:41:33 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:35598 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229831AbiBNMlc (ORCPT ); Mon, 14 Feb 2022 07:41:32 -0500 Received: from mout-p-202.mailbox.org (mout-p-202.mailbox.org [IPv6:2001:67c:2050::465:202]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A3B341C9; Mon, 14 Feb 2022 04:41:22 -0800 (PST) Received: from smtp202.mailbox.org (smtp202.mailbox.org [IPv6:2001:67c:2050:105:465:1:4:0]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-202.mailbox.org (Postfix) with ESMTPS id 4Jy3k83bjXz9sQR; Mon, 14 Feb 2022 13:41:20 +0100 (CET) X-Virus-Scanned: amavisd-new at heinlein-support.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sylv.io; s=MBO0001; t=1644842478; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=QlxYiSQLXtOgUJhWdCR53g7RwR21q6ocLhh0OLfCWng=; b=indUhyCVGN3Aj1m3rLW3oo6ZHul1YJYnVRC1ahcOYuMoA9kPgaHUqFxV+46igduhF9UKn1 Bk/QSzYsf8aEzy/LnsNH90tHVfww2088LR9EFSjO0GWWj1rQB7KqVopBfhSmPo65qTk1BW 49eDzgjKC/sIr8xJKbCAeJAWNj1m5yXH5Mih3kUEGxJMx9iI3yaiv1W4Ml7MQ2cJTEXaSh 3APhY2FeSwAlvkP3NhPMFYGeilH78y1RTnBUEnoCHy/FpxlIlw0v3zHYXAeMkmcdysXlUN TPFYesUlE6HdyqScJh7vlNvqQInrnPhXdHiUR/ku0hCQbvR5Lb+YHIGJarAriQ== From: Marcello Sylvester Bauer To: Guenter Roeck , Jean Delvare , Rob Herring Cc: linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, Patrick Rudolph , Marcello Sylvester Bauer , Rob Herring , devicetree@vger.kernel.org Subject: [PATCH v2 1/4] dt-bindings: vendor-prefixes: add Vicor Corporation Date: Mon, 14 Feb 2022 13:40:32 +0100 Message-Id: In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org Add vendor prefix for Vicor Corporation. Signed-off-by: Marcello Sylvester Bauer --- Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml index 294093d45a23..047a83a089ce 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml @@ -1298,6 +1298,8 @@ patternProperties: description: Vertexcom Technologies, Inc. "^via,.*": description: VIA Technologies, Inc. + "^vicor,.*": + description: Vicor Corporation "^videostrong,.*": description: Videostrong Technology Co., Ltd. "^virtio,.*": From patchwork Mon Feb 14 12:40:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcello Sylvester Bauer X-Patchwork-Id: 12745509 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 E7ED7C43217 for ; Mon, 14 Feb 2022 12:41:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229718AbiBNMld (ORCPT ); Mon, 14 Feb 2022 07:41:33 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:35624 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233408AbiBNMld (ORCPT ); Mon, 14 Feb 2022 07:41:33 -0500 Received: from mout-p-103.mailbox.org (mout-p-103.mailbox.org [IPv6:2001:67c:2050::465:103]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2E547C6F; Mon, 14 Feb 2022 04:41:23 -0800 (PST) Received: from smtp202.mailbox.org (smtp202.mailbox.org [IPv6:2001:67c:2050:105:465:1:4:0]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-103.mailbox.org (Postfix) with ESMTPS id 4Jy3k94RJHz9sS2; Mon, 14 Feb 2022 13:41:21 +0100 (CET) X-Virus-Scanned: amavisd-new at heinlein-support.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sylv.io; s=MBO0001; t=1644842479; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=bXyDWJOi2TMbTegBFxuy90N+VPfjmUO34aZ2XisvdHc=; b=13O2VRxq+bRCiUCclBFvpRTOHyjPE78XH7yySuIr2a88E/aFmw07HAS+sHnhTXZfK+Fa0c CVs9lWt/giqbT3Oai5Ll3NN/cWrkCrVgpTu3gEOc2+wtho8XdPpihC8X3fdzA/J5Z6TOu2 +/ljB61PzbGA8Fm9AhO0USd+g2XcSX6pymg9TMH+D1xbuPttg/s91LPhCNece5kpLuqelt V/OVHAkJyfKOOOUlc7oTn+/JWchtkVzju9CZg3/3uwtA4VUT4Dw0UgT2EB84VeTpdGXqd2 c+R4SqVr0iGGxYFYIHLQFpszvhVgV5yt2BijJhYphe56FTMQ22Alrjj3AheUfA== From: Marcello Sylvester Bauer To: Guenter Roeck , Jean Delvare , Rob Herring Cc: linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, Patrick Rudolph , Marcello Sylvester Bauer , Rob Herring , devicetree@vger.kernel.org Subject: [PATCH v2 2/4] dt-bindings:trivial-devices: Add pli1209bc Date: Mon, 14 Feb 2022 13:40:33 +0100 Message-Id: In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org Add trivial device entry for PLI1209BC Digital Supervisor from Vicor Corporation. Signed-off-by: Marcello Sylvester Bauer --- Documentation/devicetree/bindings/trivial-devices.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml index 091792ba993e..d03d90360aa0 100644 --- a/Documentation/devicetree/bindings/trivial-devices.yaml +++ b/Documentation/devicetree/bindings/trivial-devices.yaml @@ -354,6 +354,8 @@ properties: - ti,tps544c25 # Winbond/Nuvoton H/W Monitor - winbond,w83793 + # Vicor Corporation Digital Supervisor + - vicor,pli1209bc # i2c trusted platform module (TPM) - winbond,wpct301 From patchwork Mon Feb 14 12:40:34 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcello Sylvester Bauer X-Patchwork-Id: 12745513 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 5353BC433F5 for ; Mon, 14 Feb 2022 12:41:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1353333AbiBNMll (ORCPT ); Mon, 14 Feb 2022 07:41:41 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:35740 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347764AbiBNMlg (ORCPT ); Mon, 14 Feb 2022 07:41:36 -0500 X-Greylist: delayed 11693 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Mon, 14 Feb 2022 04:41:28 PST Received: from mout-p-201.mailbox.org (mout-p-201.mailbox.org [80.241.56.171]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE2FC33A38; Mon, 14 Feb 2022 04:41:28 -0800 (PST) Received: from smtp202.mailbox.org (smtp202.mailbox.org [IPv6:2001:67c:2050:105:465:1:4:0]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-201.mailbox.org (Postfix) with ESMTPS id 4Jy3kH1ytBz9sW0; Mon, 14 Feb 2022 13:41:27 +0100 (CET) X-Virus-Scanned: amavisd-new at heinlein-support.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sylv.io; s=MBO0001; t=1644842485; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=MloUkMMZYZdsAns6JIRP9WVKL/t4ke83aX1dYDzEgbM=; b=N8cRvhvFY7z6PT3WCCHNFqr2/hxTkLXtHkSeyR7xAQjPAkJ6w1msXadaZwiaDfkx+qPIPc 7iqz4jv/2ChYPTTNvnOq5yBcDeUf/JKTODuc6nnw76s1RoCJv9YxpuEhW31QryA9ukAz8V cQHeMSox5/mg+oc1y1tKuhPRG0qBxxA/BoCUfDNEmhgmLiglLe9kqmZ9E7Qmo1l4eheZR2 sxOJA+w/AjdjEFm7gTWdWNqbrf65kI7GEiIiW1KqxqpgQ5EmJ8rAzCjF9/on4gTzchNcFh r+nS5pdD5piBfp0jzi26IIZUIoy/Bdgx6l3bj9PflIwL+xz64oJMkzzM286VWg== From: Marcello Sylvester Bauer To: Guenter Roeck , Jean Delvare , Jonathan Corbet Cc: linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, Patrick Rudolph , Marcello Sylvester Bauer , linux-doc@vger.kernel.org Subject: [PATCH v2 3/4] pmbus: Add support for pli1209bc Date: Mon, 14 Feb 2022 13:40:34 +0100 Message-Id: <43ebb83e403c56e44709facf937b386282862092.1644834803.git.sylv@sylv.io> In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org PLI1209BC is a Digital Supervisor from Vicor Corporation. Signed-off-by: Marcello Sylvester Bauer --- Documentation/hwmon/pli1209bc.rst | 73 +++++++++++++++++++ drivers/hwmon/pmbus/Kconfig | 9 +++ drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/pli1209bc.c | 114 ++++++++++++++++++++++++++++++ 4 files changed, 197 insertions(+) create mode 100644 Documentation/hwmon/pli1209bc.rst create mode 100644 drivers/hwmon/pmbus/pli1209bc.c diff --git a/Documentation/hwmon/pli1209bc.rst b/Documentation/hwmon/pli1209bc.rst new file mode 100644 index 000000000000..a3f686d03cf2 --- /dev/null +++ b/Documentation/hwmon/pli1209bc.rst @@ -0,0 +1,73 @@ +Kernel driver pli1209bc +======================= + +Supported chips: + + * Digital Supervisor PLI1209BC + + Prefix: 'pli1209bc' + + Addresses scanned: 0x50 - 0x5F + + Datasheet: https://www.vicorpower.com/documents/datasheets/ds-PLI1209BCxyzz-VICOR.pdf + +Authors: + - Marcello Sylvester Bauer + +Description +----------- + +The Vicor PLI1209BC is an isolated digital power system supervisor thatprovides +a communication interface between a host processor and one Bus Converter Module +(BCM). The PLI communicates with a system controller via a PMBus compatible +interface over an isolated UART interface. Through the PLI, the host processor +can configure, set protection limits, and monitor the BCM. + +Sysfs entries +------------- + +======================= ======================================================== +in1_label "vin2" +in1_input Input voltage. +in1_rated_min Minimum rated input voltage. +in1_rated_max Maximum rated input voltage. +in1_max Maximum input voltage. +in1_max_alarm Input voltage high alarm. +in1_crit Critical input voltage. +in1_crit_alarm Input voltage critical alarm. + +in2_label "vout2" +in2_input Output voltage. +in2_rated_min Minimum rated output voltage. +in2_rated_max Maximum rated output voltage. +in2_alarm Output voltage alarm + +curr1_label "iin2" +curr1_input Input current. +curr1_max Maximum input current. +curr1_max_alarm Maximum input current high alarm. +curr1_crit Critical input current. +curr1_crit_alarm Input current critical alarm. + +curr2_label "iout2" +curr2_input Output current. +curr2_crit Critical output current. +curr2_crit_alarm Output current critical alarm. +curr2_max Maximum output current. +curr2_max_alarm Output current high alarm. + +power1_label "pin2" +power1_input Input power. +power1_alarm Input power alarm. + +power2_label "pout2" +power2_input Output power. +power2_rated_max Maximum rated output power. + +temp1_input Die temperature. +temp1_alarm Die temperature alarm. +temp1_max Maximum die temperature. +temp1_max_alarm Die temperature high alarm. +temp1_crit Critical die temperature. +temp1_crit_alarm Die temperature critical alarm. +======================= ======================================================== diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index c96f7b7338bd..831db423bea0 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -310,6 +310,15 @@ config SENSORS_PIM4328 This driver can also be built as a module. If so, the module will be called pim4328. +config SENSORS_PLI1209BC + tristate "Vicor PLI1209BC" + help + If you say yes here you get hardware monitoring support for Vicor + PLI1209BC Digital Supervisor. + + This driver can also be built as a module. If so, the module will + be called pli1209bc. + config SENSORS_PM6764TR tristate "ST PM6764TR" help diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index e5935f70c9e0..7ce74e3b8552 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -34,6 +34,7 @@ obj-$(CONFIG_SENSORS_MP2888) += mp2888.o obj-$(CONFIG_SENSORS_MP2975) += mp2975.o obj-$(CONFIG_SENSORS_MP5023) += mp5023.o obj-$(CONFIG_SENSORS_PM6764TR) += pm6764tr.o +obj-$(CONFIG_SENSORS_PLI1209BC) += pli1209bc.o obj-$(CONFIG_SENSORS_PXE1610) += pxe1610.o obj-$(CONFIG_SENSORS_Q54SJ108A2) += q54sj108a2.o obj-$(CONFIG_SENSORS_STPDDC60) += stpddc60.o diff --git a/drivers/hwmon/pmbus/pli1209bc.c b/drivers/hwmon/pmbus/pli1209bc.c new file mode 100644 index 000000000000..8a9af2ccc46f --- /dev/null +++ b/drivers/hwmon/pmbus/pli1209bc.c @@ -0,0 +1,114 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Hardware monitoring driver for Vicor PLI1209BC Digital Supervisor + * + * Copyright (c) 2022 9elements GmbH + */ + +#include +#include +#include +#include "pmbus.h" + +/* + * The capability command is only supported at page 0. Probing the device while + * the page register is set to 1 will falsely enable PEC support. Disable + * capability probing accordingly, since the PLI1209BC does not have any + * additional capabilities. + */ +static struct pmbus_platform_data pli1209bc_plat_data = { + .flags = PMBUS_NO_CAPABILITY, +}; + +static int pli1209bc_read_word_data(struct i2c_client *client, int page, + int phase, int reg) +{ + int data; + + switch (reg) { + /* PMBUS_READ_POUT uses a direct format with R=0 */ + case PMBUS_READ_POUT: + data = pmbus_read_word_data(client, page, phase, reg); + if (data < 0) + return data; + return data * 10; + default: + return -ENODATA; + } +} + +static struct pmbus_driver_info pli1209bc_info = { + .pages = 2, + .format[PSC_VOLTAGE_IN] = direct, + .format[PSC_VOLTAGE_OUT] = direct, + .format[PSC_CURRENT_IN] = direct, + .format[PSC_CURRENT_OUT] = direct, + .format[PSC_POWER] = direct, + .format[PSC_TEMPERATURE] = direct, + .m[PSC_VOLTAGE_IN] = 1, + .b[PSC_VOLTAGE_IN] = 0, + .R[PSC_VOLTAGE_IN] = 1, + .m[PSC_VOLTAGE_OUT] = 1, + .b[PSC_VOLTAGE_OUT] = 0, + .R[PSC_VOLTAGE_OUT] = 1, + .m[PSC_CURRENT_IN] = 1, + .b[PSC_CURRENT_IN] = 0, + .R[PSC_CURRENT_IN] = 3, + .m[PSC_CURRENT_OUT] = 1, + .b[PSC_CURRENT_OUT] = 0, + .R[PSC_CURRENT_OUT] = 2, + .m[PSC_POWER] = 1, + .b[PSC_POWER] = 0, + .R[PSC_POWER] = 1, + .m[PSC_TEMPERATURE] = 1, + .b[PSC_TEMPERATURE] = 0, + .R[PSC_TEMPERATURE] = 0, + /* + * Page 0 sums up all attributes except voltage readings. + * The pli1209 digital supervisor only contains a single BCM, making + * page 0 redundant. + */ + .func[1] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT + | PMBUS_HAVE_IIN | PMBUS_HAVE_IOUT + | PMBUS_HAVE_PIN | PMBUS_HAVE_POUT + | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP + | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_INPUT, + .read_word_data = pli1209bc_read_word_data, +}; + +static int pli1209bc_probe(struct i2c_client *client) +{ + client->dev.platform_data = &pli1209bc_plat_data; + return pmbus_do_probe(client, &pli1209bc_info); +} + +static const struct i2c_device_id pli1209bc_id[] = { + {"pli1209bc", 0}, + {} +}; + +MODULE_DEVICE_TABLE(i2c, pli1209bc_id); + +#ifdef CONFIG_OF +static const struct of_device_id pli1209bc_of_match[] = { + { .compatible = "vicor,pli1209bc" }, + { }, +}; +MODULE_DEVICE_TABLE(of, pli1209bc_of_match); +#endif + +static struct i2c_driver pli1209bc_driver = { + .driver = { + .name = "pli1209bc", + .of_match_table = of_match_ptr(pli1209bc_of_match), + }, + .probe_new = pli1209bc_probe, + .id_table = pli1209bc_id, +}; + +module_i2c_driver(pli1209bc_driver); + +MODULE_AUTHOR("Marcello Sylvester Bauer "); +MODULE_DESCRIPTION("PMBus driver for Vicor PLI1209BC"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(PMBUS); From patchwork Mon Feb 14 12:40:35 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcello Sylvester Bauer X-Patchwork-Id: 12745512 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 61E6FC4167B for ; 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a=rsa-sha256; c=relaxed/relaxed; d=sylv.io; s=MBO0001; t=1644842482; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=CzSU0IMv/2LxOfRakHZ3PQs+bsJ9KsSlO3ZV65EGguA=; b=TpdiJtIvRqkfoWk/elagO0n6xJ9dgplPX0H8VaRL3qaVAUKGvE5p2nj6GLqbw/BJHoz+8q zlRcr4dNWcjE7GgOFManyOrvkhOo50YphptYSYmo4UANmK7Itd/pP8XRdkNgVgkXYIWimp VPeSEAX68a1s92tlv8d1awNBl0ubxt2rfi+DKvt8M9mrbnENT0Bc3WkHEUDlp2jpwCE/Yj NZfFRB+cf10mkQWtTdUdpGv3JxrIGiumjpXPKwGOYaGxnGnlsU/WXYTv8SrKWYpQHJ6K1k 8VnjIp7WKPsu8CmHmwDoyTh3Jc1Q3zV7mVBvcW+xtpms4TE02o31WmeSxljOQA== From: Marcello Sylvester Bauer To: Guenter Roeck , Jean Delvare Cc: linux-kernel@vger.kernel.org, linux-hwmon@vger.kernel.org, Patrick Rudolph , Marcello Sylvester Bauer Subject: [PATCH v2 4/4] pmbus (pli1209bc): Add regulator support Date: Mon, 14 Feb 2022 13:40:35 +0100 Message-Id: In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org Add regulator support for PLI1209BC Digital Supervisor. Signed-off-by: Marcello Sylvester Bauer --- drivers/hwmon/pmbus/Kconfig | 7 +++++++ drivers/hwmon/pmbus/pli1209bc.c | 31 +++++++++++++++++++++++++++++++ 2 files changed, 38 insertions(+) diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 831db423bea0..8b8f0d8733b2 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -319,6 +319,13 @@ config SENSORS_PLI1209BC This driver can also be built as a module. If so, the module will be called pli1209bc. +config SENSORS_PLI1209BC_REGULATOR + bool "Regulator support for PLI1209BC" + depends on SENSORS_PLI1209BC && REGULATOR + help + If you say yes here you get regulator support for Vicor PLI1209BC + Digital Supervisor. + config SENSORS_PM6764TR tristate "ST PM6764TR" help diff --git a/drivers/hwmon/pmbus/pli1209bc.c b/drivers/hwmon/pmbus/pli1209bc.c index 8a9af2ccc46f..7212d73f6e04 100644 --- a/drivers/hwmon/pmbus/pli1209bc.c +++ b/drivers/hwmon/pmbus/pli1209bc.c @@ -8,6 +8,7 @@ #include #include #include +#include #include "pmbus.h" /* @@ -32,11 +33,37 @@ static int pli1209bc_read_word_data(struct i2c_client *client, int page, if (data < 0) return data; return data * 10; + /* + * PMBUS_READ_VOUT and PMBUS_READ_TEMPERATURE_1 return invalid data + * when the BCM is turned off. Since it is not possible to return + * ENODATA error, return zero instead. + */ + case PMBUS_READ_VOUT: + case PMBUS_READ_TEMPERATURE_1: + data = pmbus_read_word_data(client, page, phase, + PMBUS_STATUS_WORD); + if (data < 0) + return data; + if (data & PB_STATUS_POWER_GOOD_N) + return 0L; + return pmbus_read_word_data(client, page, phase, reg); default: return -ENODATA; } } +#if IS_ENABLED(CONFIG_SENSORS_PLI1209BC_REGULATOR) +static const struct regulator_desc pli1209bc_reg_desc = { + .name = "vout2", + .id = 1, + .of_match = of_match_ptr("vout2"), + .regulators_node = of_match_ptr("regulators"), + .ops = &pmbus_regulator_ops, + .type = REGULATOR_VOLTAGE, + .owner = THIS_MODULE, +}; +#endif + static struct pmbus_driver_info pli1209bc_info = { .pages = 2, .format[PSC_VOLTAGE_IN] = direct, @@ -74,6 +101,10 @@ static struct pmbus_driver_info pli1209bc_info = { | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_INPUT, .read_word_data = pli1209bc_read_word_data, +#if IS_ENABLED(CONFIG_SENSORS_PLI1209BC_REGULATOR) + .num_regulators = 1, + .reg_desc = &pli1209bc_reg_desc, +#endif }; static int pli1209bc_probe(struct i2c_client *client)