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Mon, 18 Mar 2024 07:23:12 -0400 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBMBX9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.14; Mon, 18 Mar 2024 07:23:11 -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; Mon, 18 Mar 2024 07:23:11 -0400 Received: from radu.ad.analog.com ([10.48.65.243]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 42IBMkMd030326; Mon, 18 Mar 2024 07:23:02 -0400 From: Radu Sabau To: Jean Delvare , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Corbet , Delphine CC Chiu , Radu Sabau , , , , , Subject: [PATCH 1/2] dt-bindings: hwmon: pmbus: adp1050 : add bindings Date: Mon, 18 Mar 2024 13:21:34 +0200 Message-ID: <20240318112140.385244-2-radu.sabau@analog.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240318112140.385244-1-radu.sabau@analog.com> References: <20240318112140.385244-1-radu.sabau@analog.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-GUID: IOrR5SXYbuvbIk1lYZ-YRmoR3yDQ3IZN X-Proofpoint-ORIG-GUID: IOrR5SXYbuvbIk1lYZ-YRmoR3yDQ3IZN X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-03-18_02,2024-03-18_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 mlxscore=0 clxscore=1015 mlxlogscore=999 malwarescore=0 suspectscore=0 spamscore=0 adultscore=0 phishscore=0 bulkscore=0 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2403140001 definitions=main-2403180085 Add dt-bindings for adp1050 digital controller for isolated power supply with pmbus interface voltage, current and temperature monitor. Signed-off-by: Radu Sabau --- .../bindings/hwmon/pmbus/adi,adp1050.yaml | 65 +++++++++++++++++++ MAINTAINERS | 8 +++ 2 files changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/pmbus/adi,adp1050.yaml diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/adi,adp1050.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/adi,adp1050.yaml new file mode 100644 index 000000000000..e3162d0df0e2 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/pmbus/adi,adp1050.yaml @@ -0,0 +1,65 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- + +$id: htpps://devicetree.org/schemas/hwmon/pmbus/adi,adp1050.yaml# +$schema: htpps://devicetree.org/meta-schemes/core.yaml# + +title: Analog Devices ADP1050 digital controller with PMBus interface + +maintainers: + - Radu Sabau + +description: | + The ADP1050 is used to monitor system voltages, currents and temperatures. + Through the PMBus interface, the ADP1050 targets isolated power supplies + and has four individual monitors for input/output voltage, input current + and temperature. + Datasheet: + https://www.analog.com/en/products/adp1050.html +properties: + compatbile: + const: adi,adp1050 + + reg: + maxItems: 1 + + vcc-supply: true + + adi,vin-scale-monitor: + description: + The value of the input voltage scale used by the internal ADP1050 ADC in + order to read correct voltage values. + $ref: /schemas/typees.yaml#/definitions/uint16 + adi,iin-scale-monitor: + description: + The value of the input current scale used by the internal ADP1050 ADC in + order to read carrect current values. + $ref: /schemas/typees.yaml#/definitions/uint16 + +required: + - compatible + - reg + - vcc-supply + - adi,vin-scale-monitor + - adi,iin-scale-monitor + +additionalProperties: false + +examples: + - | + i2c { + #adress-cells = <1>; + #size-cells = <0>; + clock-frequency = <100000>; + adp1050@70 { + #adress-cells = <1>; + #size-cells = <0>; + compatible = "adi,adp1050"; + reg = <0x70>; + adi,vin-scale-monitor = <0xB030>; + adi,iin-scale-monitor = <0x1>; + vcc-supply = <&vcc>; + }; +... + diff --git a/MAINTAINERS b/MAINTAINERS index f4d7f7cb7577..c90140859988 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -479,6 +479,14 @@ L: linux-wireless@vger.kernel.org S: Orphan F: drivers/net/wireless/admtek/adm8211.* +ADP1050 HARDWARE MONITOR DRIVER +M: Radu Sabau +L: linux-hwmon@vger.kernel.org +S: Supported +W: https://ez.analog.com/linux-software-drivers +F: Dcumentation/devicetree/bindings/hwmon/pmbus/adi,adp1050.yaml +F: drivers/hwmon/pmbus/adp1050.c + ADP1653 FLASH CONTROLLER DRIVER M: Sakari Ailus L: linux-media@vger.kernel.org From patchwork Mon Mar 18 11:21:35 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Radu Sabau X-Patchwork-Id: 780976 Received: from mx0b-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C6EC4374F5; 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Mon, 18 Mar 2024 07:23:09 -0400 From: Radu Sabau To: Jean Delvare , Guenter Roeck , "Rob Herring" , Krzysztof Kozlowski , Conor Dooley , Jonathan Corbet , Delphine CC Chiu , Radu Sabau , , , , , Subject: [PATCH 2/2] hwmon: pmbus: adp1050 : Add driver support Date: Mon, 18 Mar 2024 13:21:35 +0200 Message-ID: <20240318112140.385244-3-radu.sabau@analog.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240318112140.385244-1-radu.sabau@analog.com> References: <20240318112140.385244-1-radu.sabau@analog.com> Precedence: bulk X-Mailing-List: linux-i2c@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-ORIG-GUID: L6z5Vj1GKpuRP24LYMw0XTwe7RcxZssI X-Proofpoint-GUID: L6z5Vj1GKpuRP24LYMw0XTwe7RcxZssI X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-03-18_02,2024-03-18_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 suspectscore=0 mlxlogscore=999 spamscore=0 malwarescore=0 priorityscore=1501 clxscore=1015 lowpriorityscore=0 impostorscore=0 mlxscore=0 bulkscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2403140001 definitions=main-2403180085 Add support for ADP1050 Digital Controller for Isolated Power Supplies with PMBus interface Voltage, Current and Temperature Monitor. The ADP1050 implements several features to enable a robust system of parallel and redundant operation for customers who require high availability. The device can measure voltage, current and temperature that can be used in different techniques to identify and safely shut down an erroneous power supply in parallel operation mode. Signed-off-by: Radu Sabau --- Documentation/hwmon/adp1050.rst | 69 ++++++++++++++++++++ Documentation/hwmon/index.rst | 1 + drivers/hwmon/pmbus/Kconfig | 10 +++ drivers/hwmon/pmbus/Makefile | 1 + drivers/hwmon/pmbus/adp1050.c | 111 ++++++++++++++++++++++++++++++++ 5 files changed, 192 insertions(+) create mode 100644 Documentation/hwmon/adp1050.rst create mode 100644 drivers/hwmon/pmbus/adp1050.c diff --git a/Documentation/hwmon/adp1050.rst b/Documentation/hwmon/adp1050.rst new file mode 100644 index 000000000000..e3e5bb650a51 --- /dev/null +++ b/Documentation/hwmon/adp1050.rst @@ -0,0 +1,69 @@ +.. SPDX-License-Identifier: GPL-2.0 + +Kernel driver adp1050 +===================== + +Supported chips: + + * Analog Devices ADP1050 + + Prefix: 'adp1050' + + Addresses scanned: I2C 0x70 - 0x77 + + Datasheet: https://www.analog.com/media/en/technical-documentation/data- +sheets/ADP1050.pdf + +Authors: + + - Radu Sabau + + +Description +----------- + +This driver supprts hardware monitoring for Analog Devices ADP1050 Digital +Controller for Isolated Power Supply with PMBus interface. + +The ADP1050 is an advanced digital controller with a PMBus™ +interface targeting high density, high efficiency dc-to-dc power +conversion used to monitor system temperatures, voltages and currents. +Through the PMBus interface, the device can monitor input/output voltages, +input current and temperature. + +Usage Notes +----------- + +This driver does not auto-detect devices. You will have to instantiate +the devices explicitly. +Please see Documentation/i2c/instantiating-devices.rst for details. + +The vin scale monitor value and iin scale monitor value can be +configured by a device tree property;see +Documentation/devicetree/bindings/hwmon/pmbus/adi,adp1050.yaml for details + +Platform data support +--------------------- + +The driver supports standard PMBus driver platform data. + +Sysfs Attributes +---------------- + +================= ======================================== +in1_label "vin" +in1_input Measured input voltage +in1_alarm Input voltage alarm +in2_label "vout1" +in2_input Measured output voltage +in2_crit Critical maximum output voltage +in2_crit_alarm Output voltage high alarm +in2_lcrit Critical minimum output voltage +in2_lcrit_alarm Output voltage critical low alarm +curr1_label "iin" +curr1_input Measured input current. +curr1_alarm Input current alarm +temp1_input Measured temperature +temp1_crit Critical high temperature +temp1_crit_alarm Chip temperature critical high alarm +================= ======================================== diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 1ca7a4fe1f8f..9a4fd576e6f6 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -33,6 +33,7 @@ Hardware Monitoring Kernel Drivers adm1266 adm1275 adm9240 + adp1050 ads7828 adt7410 adt7411 diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 557ae0c414b0..38e794d83cc3 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -57,6 +57,16 @@ config SENSORS_ADM1275 This driver can also be built as a module. If so, the module will be called adm1275. +config SENSORS_ADP1050 + tristate "Analog Devices ADP1050 digital controller for Power Supplies" + help + If you say yes here you get hardware monitoring support for Analog + Devices ADP1050 digital controller for isolated power supply with + PMBus interface. + + This driver can also be built as a module. If so, the module will + be called adp1050. + config SENSORS_BEL_PFE tristate "Bel PFE Compatible Power Supplies" help diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile index f14ecf03ad77..95a8dea5e5ed 100644 --- a/drivers/hwmon/pmbus/Makefile +++ b/drivers/hwmon/pmbus/Makefile @@ -8,6 +8,7 @@ obj-$(CONFIG_SENSORS_PMBUS) += pmbus.o obj-$(CONFIG_SENSORS_ACBEL_FSG032) += acbel-fsg032.o obj-$(CONFIG_SENSORS_ADM1266) += adm1266.o obj-$(CONFIG_SENSORS_ADM1275) += adm1275.o +obj-$(CONFIG_SENSORS_ADP1050) += adp1050.o obj-$(CONFIG_SENSORS_BEL_PFE) += bel-pfe.o obj-$(CONFIG_SENSORS_BPA_RS600) += bpa-rs600.o obj-$(CONFIG_SENSORS_DELTA_AHE50DC_FAN) += delta-ahe50dc-fan.o diff --git a/drivers/hwmon/pmbus/adp1050.c b/drivers/hwmon/pmbus/adp1050.c new file mode 100644 index 000000000000..53198d858156 --- /dev/null +++ b/drivers/hwmon/pmbus/adp1050.c @@ -0,0 +1,111 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Hardware monitoring driver for Analog Devices ADP1050 + * + * Copyright (C) 2024 Analog Devices, Inc. + */ +#include +#include +#include +#include +#include +#include +#include +#include "pmbus.h" + +#define ADP1050_CHIP_PASSWORD 0xD7 + +#define ADP1050_VIN_SCALE_MONITOR 0xD8 +#define ADP1050_IIN_SCALE_MONITOR 0xD9 + +static struct pmbus_driver_info adp1050_info = { + .pages = 1, + .format[PSC_VOLTAGE_IN] = linear, + .format[PSC_VOLTAGE_OUT] = linear, + .format[PSC_CURRENT_IN] = linear, + .format[PSC_TEMPERATURE] = linear, + .func[0] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT + | PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT + | PMBUS_HAVE_IIN | PMBUS_HAVE_TEMP + | PMBUS_HAVE_STATUS_TEMP, +}; + +static int adp1050_probe(struct i2c_client *client) +{ + u32 vin_scale_monitor, iin_scale_monitor; + int ret; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_WRITE_WORD_DATA)) + return -ENODEV; + + /* Unlock CHIP's password in order to be able to read/write to it's + * VIN_SCALE and IIN_SCALE registers. + */ + ret = i2c_smbus_write_word_data(client, ADP1050_CHIP_PASSWORD, 0xFFFF); + if (ret < 0) { + dev_err_probe(&client->dev, "Device can't be unlocked.\n"); + return ret; + } + + ret = i2c_smbus_write_word_data(client, ADP1050_CHIP_PASSWORD, 0xFFFF); + if (ret < 0) { + dev_err_probe(&client->dev, "Device couldn't be unlocked.\n"); + return ret; + } + + /* If adi,vin-scale-monitor isn't set or is set to 0 means that the + * VIN monitor isn't used, therefore 0 is used as scale in order + * for the readings to return 0. + */ + if (device_property_read_u32(&client->dev, "adi,vin-scale-monitor", + &vin_scale_monitor)) + vin_scale_monitor = 0; + + /* If adi,iin-scale-monitor isn't set or is set to 0 means that the + * IIN monitor isn't used, therefore 0 is used as scale in order + * for the readings to return 0. + */ + if (device_property_read_u32(&client->dev, "adi,iin-scale-monitor", + &iin_scale_monitor)) + iin_scale_monitor = 0; + + ret = i2c_smbus_write_word_data(client, ADP1050_VIN_SCALE_MONITOR, + vin_scale_monitor); + if (ret < 0) + return ret; + + ret = i2c_smbus_write_word_data(client, ADP1050_IIN_SCALE_MONITOR, + iin_scale_monitor); + if (ret < 0) + return ret; + + return pmbus_do_probe(client, &adp1050_info); +} + +static const struct i2c_device_id adp1050_id[] = { + {"adp1050", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, adp1050_id); + +static const struct of_device_id adp1050_of_match[] = { + { .compatible = "adi,adp1050"}, + {} +}; +MODULE_DEVICE_TABLE(of, adp1050_of_match); + +static struct i2c_driver adp1050_driver = { + .driver = { + .name = "adp1050", + .of_match_table = of_match_ptr(adp1050_of_match), + }, + .probe = adp1050_probe, + .id_table = adp1050_id, +}; +module_i2c_driver(adp1050_driver); + +MODULE_AUTHOR("Radu Sabau "); +MODULE_DESCRIPTION("Analog Devices ADP1050 HWMON PMBus Driver"); +MODULE_LICENSE("GPL"); +MODULE_IMPORT_NS(PMBUS);