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| author | Mark Brown <broonie@kernel.org> | 2026-05-29 18:09:42 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-05-29 18:09:42 +0100 |
| commit | 75729570cb18aecca07da172d007478a95e0378e (patch) | |
| tree | 9b21b4b26db0c7745ed3f3f6115893be4adaa5fc /Documentation | |
| parent | 7103b9aedc6ee113adcb1d0f6ff4ac70135a9ae7 (diff) | |
| parent | 18825a69b1bf72ac6e80c6f45f59cac52745927d (diff) | |
| download | linux-next-history-75729570cb18aecca07da172d007478a95e0378e.tar.gz | |
Merge branch 'hwmon-next' of https://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging.git
Diffstat (limited to 'Documentation')
22 files changed, 747 insertions, 36 deletions
diff --git a/Documentation/devicetree/bindings/hwmon/lm75.yaml b/Documentation/devicetree/bindings/hwmon/lm75.yaml index 0b9fda81e3ec5..b48bf3fd721fe 100644 --- a/Documentation/devicetree/bindings/hwmon/lm75.yaml +++ b/Documentation/devicetree/bindings/hwmon/lm75.yaml @@ -54,6 +54,13 @@ properties: interrupts: maxItems: 1 + ti,alert-polarity-active-high: + description: Alert pin is asserted based on the value of alert polarity + bit of configuration register. Default value is normal (0 which maps to + active-low). The other value is inverted (1 which maps to active-high). + Specify this property to set the alert polarity to active-high. + $ref: /schemas/types.yaml#/definitions/flag + required: - compatible - reg diff --git a/Documentation/devicetree/bindings/hwmon/microchip,emc2305.yaml b/Documentation/devicetree/bindings/hwmon/microchip,emc2305.yaml index d3f06ebc19fa2..8c2548539d7fd 100644 --- a/Documentation/devicetree/bindings/hwmon/microchip,emc2305.yaml +++ b/Documentation/devicetree/bindings/hwmon/microchip,emc2305.yaml @@ -54,6 +54,12 @@ patternProperties: The fan number used to determine the associated PWM channel. maxItems: 1 + fan-shutdown-percent: + description: + PWM duty cycle in percent applied to the fan during shutdown. + minimum: 0 + maximum: 100 + required: - reg @@ -80,12 +86,14 @@ examples: fan@0 { reg = <0x0>; pwms = <&fan_controller 26000 PWM_POLARITY_INVERTED 1>; + fan-shutdown-percent = <100>; #cooling-cells = <2>; }; fan@1 { reg = <0x1>; pwms = <&fan_controller 26000 0 1>; + fan-shutdown-percent = <50>; #cooling-cells = <2>; }; diff --git a/Documentation/devicetree/bindings/hwmon/nsa320-mcu.txt b/Documentation/devicetree/bindings/hwmon/nsa320-mcu.txt deleted file mode 100644 index 0863e067c85b0..0000000000000 --- a/Documentation/devicetree/bindings/hwmon/nsa320-mcu.txt +++ /dev/null @@ -1,20 +0,0 @@ -Bindings for the fan / temperature monitor microcontroller used on -the Zyxel NSA 320 and several subsequent models. - -Required properties: -- compatible : "zyxel,nsa320-mcu" -- data-gpios : The GPIO pin connected to the data line on the MCU -- clk-gpios : The GPIO pin connected to the clock line on the MCU -- act-gpios : The GPIO pin connected to the active line on the MCU - -Example: - - hwmon { - compatible = "zyxel,nsa320-mcu"; - pinctrl-0 = <&pmx_mcu_data &pmx_mcu_clk &pmx_mcu_act>; - pinctrl-names = "default"; - - data-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>; - clk-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>; - act-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>; - }; diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml new file mode 100644 index 0000000000000..1625dd59417f1 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20830.yaml @@ -0,0 +1,66 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwmon/pmbus/adi,max20830.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices MAX20830 Step-Down Switching Regulator with PMBus + +maintainers: + - Alexis Czezar Torreno <alexisczezar.torreno@analog.com> + +description: | + The MAX20830 is a fully integrated step-down DC-DC switching regulator with + PMBus interface. It provides 2.7V to 16V input, 0.4V to 5.8V adjustable + output, and up to 30A output current. It allows monitoring of input/output + voltage, output current and temperature through the PMBus serial interface. + Datasheet: + https://www.analog.com/en/products/max20830.html + +allOf: + - $ref: /schemas/regulator/regulator.yaml# + +properties: + compatible: + const: adi,max20830 + + reg: + maxItems: 1 + + vddh-supply: + description: + Phandle to the regulator that provides the VDDH power supply. + + avdd-supply: + description: + Phandle to the regulator that provides the AVDD power supply. + + ldoin-supply: + description: + Optional 2.5V to 5.5V LDO input supply. + + pwr-good-gpios: + description: + GPIO connected to the power-good status output pin. + maxItems: 1 + +required: + - compatible + - reg + - vddh-supply + +unevaluatedProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + regulator@30 { + compatible = "adi,max20830"; + reg = <0x30>; + vddh-supply = <&vddh>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/hwmon/zyxel,nsa320-mcu.yaml b/Documentation/devicetree/bindings/hwmon/zyxel,nsa320-mcu.yaml new file mode 100644 index 0000000000000..a111f8125e09e --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/zyxel,nsa320-mcu.yaml @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwmon/zyxel,nsa320-mcu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ZyXEL NSA320 MCU + +maintainers: + - Adam Baker <linux@baker-net.org.uk> + - Guenter Roeck <linux@roeck-us.net> + +description: + The ZyXEL NSA320 uses a dedicated microcontroller to manage system-critical + functions like fan speed and power monitoring. It is connected to the SoC + via a GPIO-based serial protocol. + +properties: + compatible: + const: zyxel,nsa320-mcu + + data-gpios: + maxItems: 1 + description: GPIO pin connected to the data line on the MCU. + + clk-gpios: + maxItems: 1 + description: GPIO pin connected to the clock line on the MCU. + + act-gpios: + maxItems: 1 + description: GPIO pin connected to the active line on the MCU. + +required: + - compatible + - data-gpios + - clk-gpios + - act-gpios + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + + hwmon { + compatible = "zyxel,nsa320-mcu"; + pinctrl-0 = <&pmx_mcu_data &pmx_mcu_clk &pmx_mcu_act>; + pinctrl-names = "default"; + + data-gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>; + clk-gpios = <&gpio0 16 GPIO_ACTIVE_HIGH>; + act-gpios = <&gpio0 17 GPIO_ACTIVE_LOW>; + }; diff --git a/Documentation/devicetree/bindings/trivial-devices.yaml b/Documentation/devicetree/bindings/trivial-devices.yaml index 23fd4513933a4..1e870bb1bb6ec 100644 --- a/Documentation/devicetree/bindings/trivial-devices.yaml +++ b/Documentation/devicetree/bindings/trivial-devices.yaml @@ -99,6 +99,8 @@ properties: - delta,dps800 # Delta Electronics DPS920AB 920W 54V Power Supply - delta,dps920ab + # 600W Non-isolated 1/8th Brick DC/DC Power Modules + - delta,e50sn12051 # 1/4 Brick DC/DC Regulated Power Module - delta,q54sj108a2 # 1300W 1/4 Brick DC/DC Regulated Power Module @@ -192,6 +194,8 @@ properties: - jedec,spd5118 # Linear Technology LTC2488 - lineartechnology,ltc2488 + # Regulated 12V, 860W, Digital DC/DC Power Module + - luxshare,lx1308 # 5 Bit Programmable, Pulse-Width Modulator - maxim,ds1050 # 10 kOhm digital potentiometer with I2C interface @@ -336,6 +340,8 @@ properties: - mps,mp29612 # Monolithic Power Systems Inc. multi-phase controller mp29816 - mps,mp29816 + # Monolithic Power Systems Inc. multi-phase controller mp2985 + - mps,mp2985 # Monolithic Power Systems Inc. multi-phase controller mp2993 - mps,mp2993 # Monolithic Power Systems Inc. hot-swap protection device @@ -352,6 +358,8 @@ properties: - mps,mp9941 # Monolithic Power Systems Inc. digital step-down converter mp9945 - mps,mp9945 + # Murata D1U74T-W power supply unit + - murata,d1u74t # Temperature sensor with integrated fan control - national,lm63 # Temperature sensor with integrated fan control diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml index 28784d66ae7ba..d31198268fee2 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml @@ -981,6 +981,8 @@ patternProperties: description: Shenzhen Luckfox Technology Co., Ltd. "^lunzn,.*": description: Shenzhen Lunzn Technology Co., Ltd. + "^luxshare,.*": + description: Luxshare-ICT Co., Ltd. "^luxul,.*": description: Lagrand | AV "^lwn,.*": diff --git a/Documentation/hwmon/adt7411.rst b/Documentation/hwmon/adt7411.rst index 57ad16fb216af..28b6f3cb6b86c 100644 --- a/Documentation/hwmon/adt7411.rst +++ b/Documentation/hwmon/adt7411.rst @@ -30,11 +30,36 @@ Check the datasheet for details. sysfs-Interface --------------- -================ ================= -in0_input vdd voltage input -in[1-8]_input analog 1-8 input -temp1_input temperature input -================ ================= +================ ================================= +in0_input vdd voltage input +in0_min vdd low limit +in0_max vdd high limit +in0_alarm vdd alarm +in[1-8]_input analog 1-8 input +in[1-8]_min analog input low limit +in[1-8]_max analog input high limit +in[1-8]_alarm analog input alarm +temp1_input internal temperature input +temp1_min internal temperature low limit +temp1_max internal temperature high limit +temp1_min_alarm internal temperature low alarm +temp1_max_alarm internal temperature high alarm +================ ================================= + +If the external temperature sensor is enabled, the following attributes are +also available: + +================ ================================================ +temp2_input external temperature input +temp2_min external temperature low limit +temp2_max external temperature high limit +temp2_min_alarm external temperature low alarm +temp2_max_alarm external temperature high alarm +temp2_fault external temperature sensor fault +================ ================================================ + +If the external temperature sensor is enabled, analog inputs in1 and in2 are +not available. Besides standard interfaces, this driver adds (0 = off, 1 = on): @@ -47,4 +72,4 @@ Besides standard interfaces, this driver adds (0 = off, 1 = on): Notes ----- -SPI, external temperature sensor and limit registers are not supported yet. +SPI is not supported yet. diff --git a/Documentation/hwmon/arctic_fan_controller.rst b/Documentation/hwmon/arctic_fan_controller.rst new file mode 100644 index 0000000000000..b5be88ae464d7 --- /dev/null +++ b/Documentation/hwmon/arctic_fan_controller.rst @@ -0,0 +1,56 @@ +.. SPDX-License-Identifier: GPL-2.0-or-later + +Kernel driver arctic_fan_controller +===================================== + +Supported devices: + +* ARCTIC Fan Controller (USB HID, VID 0x3904, PID 0xF001) + +Author: Aureo Serrano de Souza <aureo.serrano@arctic.de> + +Description +----------- + +This driver provides hwmon support for the ARCTIC Fan Controller, a USB +Custom HID device with 10 fan channels. The device sends IN reports about +once per second containing current RPM values (bytes 11-30, 10 x uint16 LE). +Fan speed control is manual-only: the device does not change PWM +autonomously; it only applies a new duty cycle when it receives an OUT +report from the host. + +After the device applies an OUT report, it sends back a 2-byte ACK IN +report (Report ID 0x02, byte 1 = 0x00 on success) confirming the command +was applied. + +Usage notes +----------- + +Since it is a USB device, hotplug is supported. The device is autodetected. + +The device does not support GET_REPORT, so the driver cannot read back the +current hardware PWM state at probe time. The cached PWM values (readable +via pwm[1-10]) start at 0 and reflect only values that have been +successfully written. Because each OUT report carries all 10 channel values, +writing a single channel also sends the cached values for all other channels. +Users should set all channels to the desired values before relying on the +cached state. + +On system suspend, the device may lose power and reset its PWM channels to +hardware defaults. The driver clears its cached duty values on resume so +that reads reflect the unknown hardware state rather than stale pre-suspend +values. Userspace is responsible for re-applying the desired duty cycles +after resume. + +Sysfs entries +------------- + +================ ============================================================== +fan[1-10]_input Fan speed in RPM (read-only). Updated from IN reports at ~1 Hz. +pwm[1-10] PWM duty cycle (0-255). Write: sends an OUT report setting the + duty cycle (scaled from 0-255 to 0-100% for the device); + the cached value is updated only after the device ACKs the + command with a success status. Read: returns the last + successfully written value; initialized to 0 at driver load + and after resume (hardware state unknown). +================ ============================================================== diff --git a/Documentation/hwmon/coretemp.rst b/Documentation/hwmon/coretemp.rst index 7a5fbb37b0f33..f63b21f24d42c 100644 --- a/Documentation/hwmon/coretemp.rst +++ b/Documentation/hwmon/coretemp.rst @@ -22,8 +22,7 @@ Supported chips: Intel 64 and IA-32 Architectures Software Developer's Manual Volume 3A: System Programming Guide - - http://softwarecommunity.intel.com/Wiki/Mobility/720.htm + (https://www.intel.com/content/www/us/en/developer/articles/technical/intel-sdm.html) Author: Rudolf Marek @@ -51,12 +50,13 @@ All Sysfs entries are named with their core_id (represented here by 'X'). ================= ======================================================== tempX_input Core temperature (in millidegrees Celsius). -tempX_max All cooling devices should be turned on (on Core2). +tempX_max Maximum recommended operating temperature (Tcontrol). + All cooling devices should be turned on. tempX_crit Maximum junction temperature (in millidegrees Celsius). tempX_crit_alarm Set when Out-of-spec bit is set, never clears. Correct CPU operation is no longer guaranteed. tempX_label Contains string "Core X", where X is processor - number. For Package temp, this will be "Physical id Y", + number. For Package temp, this will be "Package id Y", where Y is the package number. ================= ======================================================== diff --git a/Documentation/hwmon/d1u74t.rst b/Documentation/hwmon/d1u74t.rst new file mode 100644 index 0000000000000..3a9eedbda4837 --- /dev/null +++ b/Documentation/hwmon/d1u74t.rst @@ -0,0 +1,81 @@ +.. SPDX-License-Identifier: GPL-2.0-or-later + +Kernel driver d1u74t +==================== + +Supported chips: + + * Murata D1U74T + + Prefix: 'd1u74t' + + Addresses scanned: - + + Datasheet: Publicly available at the Murata website + +Authors: + Abdurrahman Hussain <abdurrahman@nexthop.ai> + + +Description +----------- + +This driver implements support for Murata D1U74T Power Supply with +PMBus support. + +The driver is a client driver to the core PMBus driver. +Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers. + + +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. + + +Sysfs entries +------------- + +======================= ====================================================== +curr1_label "iin" +curr1_input Measured input current +curr1_alarm Input current alarm +curr1_rated_max Maximum rated input current + +curr2_label "iout1" +curr2_input Measured output current +curr2_max Maximum output current +curr2_max_alarm Output current high alarm +curr2_crit Critical high output current +curr2_crit_alarm Output current critical high alarm +curr2_rated_max Maximum rated output current + +in1_label "vin" +in1_input Measured input voltage +in1_alarm Input voltage alarm +in1_rated_min Minimum rated input voltage +in1_rated_max Maximum rated input voltage + +in2_label "vout1" +in2_input Measured output voltage +in2_alarm Output voltage alarm +in2_rated_min Minimum rated output voltage +in2_rated_max Maximum rated output voltage + +power1_label "pin" +power1_input Measured input power +power1_alarm Input power alarm +power1_rated_max Maximum rated input power + +temp[1-3]_input Measured temperature +temp[1-3]_max Maximum temperature +temp[1-3]_max_alarm Maximum temperature alarm +temp[1-3]_rated_max Maximum rated temperature + +fan1_alarm Fan 1 warning +fan1_fault Fan 1 fault +fan1_input Fan 1 speed in RPM +fan1_target Fan 1 target +======================= ====================================================== diff --git a/Documentation/hwmon/e50sn12051.rst b/Documentation/hwmon/e50sn12051.rst new file mode 100644 index 0000000000000..cbbfa7895d829 --- /dev/null +++ b/Documentation/hwmon/e50sn12051.rst @@ -0,0 +1,81 @@ +.. SPDX-License-Identifier: GPL-2.0-or-later + +Kernel driver e50sn12051 +======================== + +Supported chips: + + * Delta E50SN12051 + + Prefix: 'e50sn12051' + + Addresses scanned: - + + Datasheet: + + Provided by Delta upon request and NDA + +Description +----------- + +E50SN12051 is a 600W non-isolated 1/8th brick DC-DC power module. + +This driver supports the E50SN12051 PMBus compliant monitor device. + +The device provides measurements for: + +* Input voltage +* Output current +* Output voltage +* Temperature + +The driver is based on the PMBus core and exposes standard hwmon +sysfs attributes. + +Sysfs attributes +---------------- + +======================= ======================================================= +curr1_label "iout1" +curr1_crit Critical maximum current. + From IOUT_OC_FAULT_LIMIT register. +curr1_crit_alarm Current critical high alarm. + From IOUT_OC_FAULT status. +curr1_input Measured current. + From READ_IOUT register. +curr1_max Maximum current. + From IOUT_OC_WARN_LIMIT register. +curr1_max_alarm Current high alarm. + From IOUT_OC_WARN_LIMIT status. + +in1_label "vin" +in1_alarm Input voltage alarm. +in1_input Measured voltage. + From READ_VIN register. + +in2_label "vout1" +in2_crit Critical maximum voltage. + From VOUT_OV_FAULT_LIMIT register. +in2_crit_alarm Voltage critical high alarm. + From VOLTAGE_OV_FAULT status. +in2_input Measured voltage. + From READ_VOUT register. +in2_max Maximum voltage. + From VOUT_OV_WARN_LIMIT register. +in2_max_alarm Voltage high alarm. + From VOLTAGE_OV_WARNING status. + +temp1_crit Critical high temperature. + From OT_FAULT_LIMIT register. +temp1_crit_alarm Module temperature critical high alarm. + Set by comparing READ_TEMPERATURE_1 with OT_FAULT_LIMIT + if TEMP_OT_FAULT status is set. +temp1_input Measured module's hot spot temperature. + From READ_TEMPERATURE_1 register. +temp1_max Maximum temperature. + From OT_WARN_LIMIT register. +temp1_max_alarm Module temperature high alarm. + Set by comparing READ_TEMPERATURE_1 with OT_WARN_LIMIT if + TEMP_OT_WARNING status is set. +======================= ======================================================= + diff --git a/Documentation/hwmon/htu31.rst b/Documentation/hwmon/htu31.rst index ccde84264643d..9ab774dcf65de 100644 --- a/Documentation/hwmon/htu31.rst +++ b/Documentation/hwmon/htu31.rst @@ -35,3 +35,10 @@ temp1_input: temperature input humidity1_input: humidity input heater_enable: heater control =================== ================= + +debugfs-Interface +----------------- + +=================== ========================================= +serial_number: unique serial number of the sensor +=================== ========================================= diff --git a/Documentation/hwmon/hwmon-kernel-api.rst b/Documentation/hwmon/hwmon-kernel-api.rst index 1d7f1397a8274..9fcde32a140df 100644 --- a/Documentation/hwmon/hwmon-kernel-api.rst +++ b/Documentation/hwmon/hwmon-kernel-api.rst @@ -85,9 +85,10 @@ removal. When using ``[devm_]hwmon_device_register_with_info()`` to register the hardware monitoring device, accesses using the associated access functions are serialised by the hardware monitoring core. If a driver needs locking -for other functions such as interrupt handlers or for attributes which are -fully implemented in the driver, hwmon_lock() and hwmon_unlock() can be used -to ensure that calls to those functions are serialized. +for other functions such as interrupt handlers, attributes which are fully +implemented in the driver, or debugfs functions, hwmon_lock() and hwmon_unlock() +can be used to ensure that calls to those functions are serialized. Those +functions also support guard() and scoped_guard() variants. Using devm_hwmon_device_register_with_info() -------------------------------------------- diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 8b655e5d6b68b..e880c6ca84f03 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -43,6 +43,7 @@ Hardware Monitoring Kernel Drivers amc6821 aps-379 aquacomputer_d5next + arctic_fan_controller asb100 asc7621 aspeed-g6-pwm-tach @@ -60,6 +61,7 @@ Hardware Monitoring Kernel Drivers corsair-psu cros_ec_hwmon crps + d1u74t da9052 da9055 dell-smm-hwmon @@ -68,6 +70,7 @@ Hardware Monitoring Kernel Drivers drivetemp ds1621 ds620 + e50sn12051 emc1403 emc2103 emc2305 @@ -146,6 +149,7 @@ Hardware Monitoring Kernel Drivers ltc4261 ltc4282 ltc4286 + lx1308 macsmc-hwmon max127 max15301 @@ -158,6 +162,7 @@ Hardware Monitoring Kernel Drivers max197 max20730 max20751 + max20830 max31722 max31730 max31760 @@ -185,6 +190,7 @@ Hardware Monitoring Kernel Drivers mp2925 mp29502 mp2975 + mp2985 mp2993 mp5023 mp5920 diff --git a/Documentation/hwmon/lm75.rst b/Documentation/hwmon/lm75.rst index 4269da04508ef..ca46754e028b3 100644 --- a/Documentation/hwmon/lm75.rst +++ b/Documentation/hwmon/lm75.rst @@ -181,3 +181,19 @@ is supported by this driver, other specific enhancements are not. The LM77 is not supported, contrary to what we pretended for a long time. Both chips are simply not compatible, value encoding differs. + +sysfs-Interface +--------------- + +The following list includes the sysfs attributes that the driver provides, their +permissions and a short description: + +=============================== ======= =========================================== +Name Perm Description +=============================== ======= =========================================== +temp1_input RO Temperature input +temp1_label RO Descriptive name for the sensor +temp1_max RW Maximum temperature +temp1_max_hyst RW Maximum hysteresis temperature +update_interval RW Update conversions interval in milliseconds +=============================== ======= =========================================== diff --git a/Documentation/hwmon/lx1308.rst b/Documentation/hwmon/lx1308.rst new file mode 100644 index 0000000000000..c1b72e1647c52 --- /dev/null +++ b/Documentation/hwmon/lx1308.rst @@ -0,0 +1,90 @@ +.. SPDX-License-Identifier: GPL-2.0-or-later + +Kernel driver lx1308 +==================== + +Supported chips: + + * Luxshare LX1308 + + Prefixes: 'lx1308' + + Addresses scanned: - + + Datasheet: Datasheet is not publicly available. + +Author: Brian Chiang <chiang.brian@inventec.com> + + +Description +----------- + +The LX1308 is a high-efficiency, non-isolated, regulated 12V, 860W, +digital DC/DC power module. The module operates from a 40V to 60V DC +primary bus and provides a 12V regulated output voltage. It can deliver +up to 860W continuous and 1300W in transient. + +The module has slow OCP and fast OCP. If the module output current is higher +than slow OCP set point and the lasting time is also longer than the delay, +the module will shut down and retry 3 time, if the fault still exists then +module enter latch mode. + +If the module output current is higher than fast OCP set point then it shut +down and enter latch mode. + +The driver is a client driver to the core PMBus driver. +Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers. + + +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. + + +Sysfs entries +------------- + +======================= ====================================================== +curr1_alarm Input current alarm +curr1_input Input current (IIN) +curr1_label "iin" +curr2_crit Output over current fault threshold (slow OCP, 60ms delay) +curr2_crit_alarm Output over current fault alarm +curr2_input Output current (IOUT) +curr2_label "iout1" +curr2_max Output over current warning threshold (slow OCP, 60ms delay) +curr2_max_alarm Output over current warning alarm +in1_crit Input over voltage fault threshold +in1_crit_alarm Input over voltage fault alarm +in1_input Input voltage (VIN) +in1_label "vin" +in1_lcrit Input under voltage fault threshold +in1_lcrit_alarm Input under voltage fault alarm +in1_max Input over voltage warning threshold +in1_max_alarm Input over voltage warning alarm +in1_min Input under voltage warning threshold +in1_min_alarm Input under voltage warning alarm +in2_crit Output over voltage fault threshold +in2_crit_alarm Output over voltage fault alarm +in2_input Output voltage (VOUT) +in2_label "vout1" +in2_lcrit Output under voltage fault threshold +in2_lcrit_alarm Output under voltage fault alarm +in2_max Output over voltage warning threshold +in2_max_alarm Output over voltage warning alarm +in2_min Output under voltage warning threshold +in2_min_alarm Output under voltage warning alarm +power1_alarm Input power alarm +power1_input Input power (PIN) +power1_label "pin" +power2_input Output power (POUT) +power2_label "pout1" +temp1_crit Over temperature fault threshold +temp1_crit_alarm Over temperature fault alarm +temp1_input Module hot spot temperature +temp1_max Over temperature warning threshold +temp1_max_alarm Over temperature warning alarm +======================= ====================================================== diff --git a/Documentation/hwmon/max20830.rst b/Documentation/hwmon/max20830.rst new file mode 100644 index 0000000000000..936e409dcc5c0 --- /dev/null +++ b/Documentation/hwmon/max20830.rst @@ -0,0 +1,49 @@ +.. SPDX-License-Identifier: GPL-2.0 + +Kernel driver max20830 +====================== + +Supported chips: + + * Analog Devices MAX20830 + + Prefix: 'max20830' + + Addresses scanned: - + + Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/max20830.pdf + +Author: + + - Alexis Czezar Torreno <alexisczezar.torreno@analog.com> + + +Description +----------- + +This driver supports hardware monitoring for Analog Devices MAX20830 +Step-Down Switching Regulator with PMBus Interface. + +The MAX20830 is a 2.7V to 16V, 30A fully integrated step-down DC-DC switching +regulator. Through the PMBus interface, the device can monitor input/output +voltages, output current and temperature. + +The driver is a client driver to the core PMBus driver. Please see +Documentation/hwmon/pmbus.rst for details on PMBus client drivers. + +Sysfs entries +------------- + +================= ======================================== +in1_label "vin" +in1_input Measured input voltage +in1_alarm Input voltage alarm +in2_label "vout1" +in2_input Measured output voltage +in2_alarm Output voltage alarm +curr1_label "iout1" +curr1_input Measured output current +curr1_alarm Output current alarm +temp1_input Measured temperature +temp1_alarm Chip temperature alarm +================= ======================================== diff --git a/Documentation/hwmon/max31730.rst b/Documentation/hwmon/max31730.rst index 1c5a32b641879..0936ba2eac247 100644 --- a/Documentation/hwmon/max31730.rst +++ b/Documentation/hwmon/max31730.rst @@ -1,4 +1,4 @@ -Kernel driver max31790 +Kernel driver max31730 ====================== Supported chips: diff --git a/Documentation/hwmon/mp2985.rst b/Documentation/hwmon/mp2985.rst new file mode 100644 index 0000000000000..87a39c8a300c6 --- /dev/null +++ b/Documentation/hwmon/mp2985.rst @@ -0,0 +1,147 @@ +.. SPDX-License-Identifier: GPL-2.0 + +Kernel driver mp2985 +==================== + +Supported chips: + + * MPS mp2985 + + Prefix: 'mp2985' + +Author: + + Wensheng Wang <wenswang@yeah.net> + +Description +----------- + +This driver implements support for Monolithic Power Systems, Inc. (MPS) +MP2985 Dual Loop Digital Multi-phase Controller. + +Device compliant with: + +- PMBus rev 1.3 interface. + +The driver exports the following attributes via the 'sysfs' files +for input voltage: + +**in1_input** + +**in1_label** + +**in1_crit** + +**in1_crit_alarm** + +**in1_lcrit** + +**in1_lcrit_alarm** + +**in1_max** + +**in1_max_alarm** + +**in1_min** + +**in1_min_alarm** + +The driver provides the following attributes for output voltage: + +**in2_input** + +**in2_label** + +**in2_crit** + +**in2_crit_alarm** + +**in2_lcrit** + +**in2_lcrit_alarm** + +**in3_input** + +**in3_label** + +**in3_crit** + +**in3_crit_alarm** + +**in3_lcrit** + +**in3_lcrit_alarm** + +The driver provides the following attributes for input current: + +**curr1_input** + +**curr1_label** + +The driver provides the following attributes for output current: + +**curr2_input** + +**curr2_label** + +**curr2_crit** + +**curr2_crit_alarm** + +**curr2_max** + +**curr2_max_alarm** + +**curr3_input** + +**curr3_label** + +**curr3_crit** + +**curr3_crit_alarm** + +**curr3_max** + +**curr3_max_alarm** + +The driver provides the following attributes for input power: + +**power1_input** + +**power1_label** + +**power2_input** + +**power2_label** + +The driver provides the following attributes for output power: + +**power3_input** + +**power3_label** + +**power4_input** + +**power4_label** + +The driver provides the following attributes for temperature: + +**temp1_input** + +**temp1_crit** + +**temp1_crit_alarm** + +**temp1_max** + +**temp1_max_alarm** + +**temp2_input** + +**temp2_crit** + +**temp2_crit_alarm** + +**temp2_max** + +**temp2_max_alarm** diff --git a/Documentation/hwmon/nct7802.rst b/Documentation/hwmon/nct7802.rst index 8b7365a7cb322..366050ea595cc 100644 --- a/Documentation/hwmon/nct7802.rst +++ b/Documentation/hwmon/nct7802.rst @@ -24,6 +24,22 @@ speed sensors. Smart Fan™ speed control is available via pwmX_auto_point attributes. +Sysfs Attributes +---------------- + +Sysfs attributes unique to this chip are documented below. For common +attributes, see Documentation/hwmon/sysfs-interface.rst. + +step_up_time + Time interval between successive duty cycle increases + when in Smart Fan mode. Specified in milliseconds and + rounded to intervals of 100 in the range 100-25500. + +step_down_time + Time interval between successive duty cycle decreases + when in Smart Fan mode. Specified in milliseconds and + rounded to intervals of 100 in the range 100-25500. + Tested Boards and BIOS Versions ------------------------------- diff --git a/Documentation/hwmon/raspberrypi-hwmon.rst b/Documentation/hwmon/raspberrypi-hwmon.rst index 8038ade36490a..db315184b8616 100644 --- a/Documentation/hwmon/raspberrypi-hwmon.rst +++ b/Documentation/hwmon/raspberrypi-hwmon.rst @@ -20,6 +20,17 @@ undervoltage conditions. Sysfs entries ------------- -======================= ================== +======================= ====================================================== +in0_input Core voltage in millivolts +in1_input SDRAM controller voltage in millivolts +in2_input SDRAM I/O voltage in millivolts +in3_input SDRAM PHY voltage in millivolts +in0_label "core" +in1_label "sdram_c" +in2_label "sdram_i" +in3_label "sdram_p" in0_lcrit_alarm Undervoltage alarm -======================= ================== +======================= ====================================================== + +The voltage inputs and labels are only exposed if the firmware reports support +for the corresponding voltage ID. |