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[1.34.21.66]) by smtp.gmail.com with ESMTPSA id q189-20020a6343c6000000b005bcebc93d7asm3869035pga.47.2023.11.08.20.50.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 Nov 2023 20:50:58 -0800 (PST) From: Peter Yin To: patrick@stwcx.xyz, Jean Delvare , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Corbet , Peter Yin , linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org Subject: [PATCH v2 1/2] dt-bindings: hwmon: Add mps mp5990 driver bindings Date: Thu, 9 Nov 2023 12:48:42 +0800 Message-Id: <20231109044844.614007-2-peteryin.openbmc@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231109044844.614007-1-peteryin.openbmc@gmail.com> References: <20231109044844.614007-1-peteryin.openbmc@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (agentk.vger.email [0.0.0.0]); Wed, 08 Nov 2023 20:51:19 -0800 (PST) X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on agentk.vger.email X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1782060660387495451 X-GMAIL-MSGID: 1782060660387495451 Add a device tree bindings for mp5990 device. Signed-off-by: Peter Yin Reviewed-by: Krzysztof Kozlowski --- .../devicetree/bindings/hwmon/mps,mp5990.yaml | 41 +++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/mps,mp5990.yaml diff --git a/Documentation/devicetree/bindings/hwmon/mps,mp5990.yaml b/Documentation/devicetree/bindings/hwmon/mps,mp5990.yaml new file mode 100644 index 000000000000..bfd0cf7d3470 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/mps,mp5990.yaml @@ -0,0 +1,41 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwmon/mps,mp5990.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Monolithic Power Systems Devices MP5990 Hot-Swap Controller + +maintainers: + - Peter Yin + +description: | + Monolithic Power Systems Devices MP5990 Hot-Swap Controller + + Datasheets: + https://www.monolithicpower.com/en/mp5990.html + +properties: + compatible: + const: mps,mp5990 + + reg: + maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + power-sensor@20 { + reg = <0x20>; + compatible = "mps,mp5990"; + }; + }; From patchwork Thu Nov 9 04:48:43 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Yin X-Patchwork-Id: 163218 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b129:0:b0:403:3b70:6f57 with SMTP id q9csp218201vqs; Wed, 8 Nov 2023 20:52:29 -0800 (PST) X-Google-Smtp-Source: AGHT+IF5kNq3ITQ5DiMFSkrF9JNxTsLxeVmHTwxtMRgNfZvbTLKJclE9BfP7CKnAvwibgW1YzG7d X-Received: by 2002:a25:c712:0:b0:d9b:3b3e:5a07 with SMTP id w18-20020a25c712000000b00d9b3b3e5a07mr3482048ybe.5.1699505549029; Wed, 08 Nov 2023 20:52:29 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1699505548; cv=none; d=google.com; s=arc-20160816; b=0T1mUU8p20KvmLbSkDKgR+vuoGIlEcKikYsl35v4Rc6fu8IUXwyRut2U26idq/oH0j ULdDl+NG7F+7n+u28GHxnFOkK8+VlpSnvPmP7UrqXex1CHGjgSNF9+nhv06tVVvQ/O4a If3LH2oTRR0E8M246FDkTsMcw39BbLK/umBtdAX4q9JYYs7XAKR7nL0dl08T441MPd/U OM+1XCSNtG3kcDsdlKvjdzp/piiWWdpMlw8H+UTpYEXJjZOpQ64zV+T0ZUn8WrFVBd4y JpoG5JiraNjUF6y5SpY/g/kHwUv5gER3o6H66zmULMT32x35IWSg2ZS7yCzRlTMW9/cZ d6Ug== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:to:from :dkim-signature; bh=mGGNBzEmDwLCmCeF+BF2lSFyKjl0VHCNvq4NKl4HYq0=; fh=FOMho48dHeCrwK813iVBLZoyn/HaS3J+JQrZ0cE/8CI=; b=kZS1dy9cFUdPgvGLhjQ1gMX8Y2o4fyk0IHoNeItOflBiu1/DAEoAOODbuq9Ojvqhr+ SLC+q+WDCKiGcNy93gZBLjjZYaiTqbGPJxxkipcsIh4brlhcbznLTigmZyklZvNUapQb 0nU/h2VNkUO7K5Bpin/pYbeFJK4QLPCCww7dmmC3JjHGzK6MPAwJZtGUK0W7qhiEfsL7 c2pXhqUNT4rs0j5fb6lWdf+YR6dMCSTxEaWhO1a6988QIXYQWsGPPJBDdNBa8Yb22IT/ PyKvlCjfRnznpzpDhUPcFLmioUoWTvlepBnM54fspD4Bc9DzOdByerUI3G2UFh1GtKn3 r51Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20230601 header.b=lnamVj+q; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:3 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from lipwig.vger.email (lipwig.vger.email. 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[1.34.21.66]) by smtp.gmail.com with ESMTPSA id q189-20020a6343c6000000b005bcebc93d7asm3869035pga.47.2023.11.08.20.51.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 Nov 2023 20:51:02 -0800 (PST) From: Peter Yin To: patrick@stwcx.xyz, Jean Delvare , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Corbet , Peter Yin , linux-hwmon@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org Subject: [PATCH v2 2/2] hwmon: (pmbus) Add support for MPS Multi-phase mp5990 Date: Thu, 9 Nov 2023 12:48:43 +0800 Message-Id: <20231109044844.614007-3-peteryin.openbmc@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231109044844.614007-1-peteryin.openbmc@gmail.com> References: <20231109044844.614007-1-peteryin.openbmc@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (lipwig.vger.email [0.0.0.0]); Wed, 08 Nov 2023 20:51:33 -0800 (PST) X-Spam-Status: No, score=-0.6 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lipwig.vger.email X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1782060730367385642 X-GMAIL-MSGID: 1782060730367385642 Add support for mp5990 device from Monolithic Power Systems, Inc. (MPS) vendor. This is a Hot-Swap Controller. Signed-off-by: Peter Yin --- Documentation/hwmon/index.rst | 1 + Documentation/hwmon/mp5990.rst | 84 +++++++++++++++++++++++++++++++++ drivers/hwmon/pmbus/Kconfig | 9 ++++ drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/mp5990.c | 86 ++++++++++++++++++++++++++++++++++ 5 files changed, 181 insertions(+) create mode 100644 Documentation/hwmon/mp5990.rst create mode 100644 drivers/hwmon/pmbus/mp5990.c diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 042e1cf9501b..8c70e10fc795 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -157,6 +157,7 @@ Hardware Monitoring Kernel Drivers mp2888 mp2975 mp5023 + mp5990 nct6683 nct6775 nct7802 diff --git a/Documentation/hwmon/mp5990.rst b/Documentation/hwmon/mp5990.rst new file mode 100644 index 000000000000..d2da0f767530 --- /dev/null +++ b/Documentation/hwmon/mp5990.rst @@ -0,0 +1,84 @@ +.. SPDX-License-Identifier: GPL-2.0 + +Kernel driver mp5990 +==================== + +Supported chips: + + * MPS MP5990 + + Prefix: 'mp5990' + + * Datasheet + + Publicly available at the MPS website : https://www.monolithicpower.com/en/mp5990.html + +Author: + + Peter Yin + +Description +----------- + +This driver implements support for Monolithic Power Systems, Inc. (MPS) +MP5990 Hot-Swap Controller. + +Device compliant with: + +- PMBus rev 1.3 interface. + +Device supports direct format for reading input voltage, output voltage, +output current, input power and temperature. + +The driver exports the following attributes via the 'sysfs' files +for input voltage: + +**in1_input** + +**in1_label** + +**in1_max** + +**in1_max_alarm** + +**in1_min** + +**in1_min_alarm** + +The driver provides the following attributes for output voltage: + +**in2_input** + +**in2_label** + +**in2_alarm** + +The driver provides the following attributes for output current: + +**curr1_input** + +**curr1_label** + +**curr1_alarm** + +**curr1_max** + +The driver provides the following attributes for input power: + +**power1_input** + +**power1_label** + +**power1_alarm** + +The driver provides the following attributes for temperature: + +**temp1_input** + +**temp1_max** + +**temp1_max_alarm** + +**temp1_crit** + +**temp1_crit_alarm** diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 270b6336b76d..65a116f7744d 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -326,6 +326,15 @@ config SENSORS_MP5023 This driver can also be built as a module. If so, the module will be called mp5023. +config SENSORS_MP5990 + tristate "MPS MP5990" + help + If you say yes here you get hardware monitoring support for MPS + MP5990. + + This driver can also be built as a module. If so, the module will + be called mp5990. + config SENSORS_MPQ7932_REGULATOR bool "Regulator support for MPQ7932" depends on SENSORS_MPQ7932 && REGULATOR diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index 84ee960a6c2d..212d9ca0acc9 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -35,6 +35,7 @@ obj-$(CONFIG_SENSORS_MAX8688) += max8688.o obj-$(CONFIG_SENSORS_MP2888) += mp2888.o obj-$(CONFIG_SENSORS_MP2975) += mp2975.o obj-$(CONFIG_SENSORS_MP5023) += mp5023.o +obj-$(CONFIG_SENSORS_MP5990) += mp5990.o obj-$(CONFIG_SENSORS_MPQ7932) += mpq7932.o obj-$(CONFIG_SENSORS_PLI1209BC) += pli1209bc.o obj-$(CONFIG_SENSORS_PM6764TR) += pm6764tr.o diff --git a/drivers/hwmon/pmbus/mp5990.c b/drivers/hwmon/pmbus/mp5990.c new file mode 100644 index 000000000000..fb3ac9c5d44e --- /dev/null +++ b/drivers/hwmon/pmbus/mp5990.c @@ -0,0 +1,86 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Driver for MPS MP5990 Hot-Swap Controller + */ + +#include +#include +#include +#include +#include "pmbus.h" + +static int mp5990_read_byte_data(struct i2c_client *client, int page, int reg) +{ + switch (reg) { + case PMBUS_VOUT_MODE: + /* The datasheet does not support the VOUT command, + * but the device responds with a default value of 0x17. + * In the standard, 0x17 represents linear mode. However, + * for the MP5990, the VOUT linear mode is linear11, not linear16. + * Therefore, we should enforce the VOUT in the direct format. + */ + return PB_VOUT_MODE_DIRECT; + default: + return -ENODATA; + } +} + +static struct pmbus_driver_info mp5990_info = { + .pages = 1, + .format[PSC_VOLTAGE_IN] = direct, + .format[PSC_VOLTAGE_OUT] = direct, + .format[PSC_CURRENT_OUT] = direct, + .format[PSC_POWER] = direct, + .format[PSC_TEMPERATURE] = direct, + .m[PSC_VOLTAGE_IN] = 32, + .b[PSC_VOLTAGE_IN] = 0, + .R[PSC_VOLTAGE_IN] = 0, + .m[PSC_VOLTAGE_OUT] = 32, + .b[PSC_VOLTAGE_OUT] = 0, + .R[PSC_VOLTAGE_OUT] = 0, + .m[PSC_CURRENT_OUT] = 16, + .b[PSC_CURRENT_OUT] = 0, + .R[PSC_CURRENT_OUT] = 0, + .m[PSC_POWER] = 1, + .b[PSC_POWER] = 0, + .R[PSC_POWER] = 0, + .m[PSC_TEMPERATURE] = 1, + .b[PSC_TEMPERATURE] = 0, + .R[PSC_TEMPERATURE] = 0, + .func[0] = + PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_PIN | + PMBUS_HAVE_TEMP | PMBUS_HAVE_IOUT | + PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_STATUS_TEMP, + .read_byte_data = mp5990_read_byte_data, +}; + +static int mp5990_probe(struct i2c_client *client) +{ + return pmbus_do_probe(client, &mp5990_info); +} + +static const struct of_device_id mp5990_of_match[] = { + { .compatible = "mps,mp5990" }, + {} +}; + +static const struct i2c_device_id mp5990_id[] = { + {"mp5990", 0}, + { } +}; +MODULE_DEVICE_TABLE(i2c, mp5990_id); + +static struct i2c_driver mp5990_driver = { + .driver = { + .name = "mp5990", + .of_match_table = mp5990_of_match, + }, + .probe = mp5990_probe, + .id_table = mp5990_id, +}; +module_i2c_driver(mp5990_driver); + +MODULE_AUTHOR("Peter Yin "); +MODULE_DESCRIPTION("PMBus driver for MP5990 HSC"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(PMBUS);