diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-06-16 08:10:21 +0530 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-06-16 08:10:21 +0530 |
| commit | fc2ce3ee106f2d53eb344f5c4963c897bbb21634 (patch) | |
| tree | 9477c5967a84f334d7c8a5d7d53ffd8b0679fdac /Documentation | |
| parent | 7e54cdd0564f5393eb773b88cb49f55859e90474 (diff) | |
| parent | 9955c92abe72564a49c293b1c15cd3b4f02ea6a0 (diff) | |
| download | ath-fc2ce3ee106f2d53eb344f5c4963c897bbb21634.tar.gz | |
Merge tag 'hwmon-for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"New drivers for the following chips:
- Analog Devices LTC4283 Swap Controller
- Analog Devices MAX20830
- Analog Devices MAX20860A
- ARCTIC Fan Controller
- Delta E50SN12051
- Luxshare LX1308
- Microchip EMC1812/13/14/15/33
- Monolithic MP2985
- Murata D1U74T PSU
New chip support added to existing drivers:
- asus-ec-sensors: Support for ROG MAXIMUS Z790 EXTREME, ROG STRIX
B850-E GAMING WIFI, and ROG STRIX B650E-E GAMING WIFI
- dell-smm: Add Dell Latitude 7530 to fan control whitelist
- nct6683: Support for ASRock Z890 Pro-A
- pmbus: Support for Flex BMR316, BMR321, BMR350 and BMR351
- pmbus/max34440: Support for ADPM12250
- pmbus/xdp720: Support for Infineon xdp730, and fix driver issues
reported by Sashiko
New functionality:
- Add support for update_interval_us chip attribute, and support it
in ina238 driver
- Add support for guard() and scoped_guard() for subsystem locks, and
use it in adt7411, ina2xx, and lm90 drivers
- emc2305: Support configurable fan PWM at shutdown
- lm63: Expose PWM frequency and LUT hysteresis as writable
- lm75: Support active-high alert polarity
- nct7802: Add time step attributes for tweaking responsiveness
- pmbus/adm1266: Add rtc debugfs entries for rtc, powerup_counter,
clear_blackbox, and firmware_revision
- raspberrypi: Fix delayed-work teardown race, add voltage input
support as well as voltage domain IDs
- mcp9982: Add support for reporting external diode faults
Miscellaneous bug fixes, changes and improvements:
- Use named initializers for platform_device_id arrays and
i2c_device_data, and remove unused driver data
- Various drivers: Move MODULE_DEVICE_TABLE next to the table itself
- ads7871: Convert to hwmon_device_register_with_info(), and use
DMA-safe buffer for SPI writes
- adt7411: document supported sysfs attributes
- adt7462: Add of_match_table to support devicetree
- adt7475: Add explicit header include
- coretemp; Fix outdated documentation, coding style issues, and
replace hardcoded core count with dynamic value
- cros_ec: Drop unused assignment of platform_device_id driver data
- emc2305: Fix fan channel index handling
- gpd-fan: Reject EC PWM value 0 as invalid, fix race condition
between device removal and sysfs access, upgrade log level from
warn to err for platform device creation failure, initialize EC
before registering hwmon device, drop global driver data and use
per-device allocation
- htu31: document debugfs serial_number
- ina238: Add support for samples and update_interval
- it87: Clamp negative values to zero in set_fan()
- lm75: Add explicit header include, Add explicit default cases in
lm75_is_visible(), and add section for sysfs interface to
documentation
- pmbus/lm25066: Fix PMBus coefficients for LM5064/5066/5066i
- tmp102: Use device_property_read_string API
- tmp401: Read "ti,n-factor" as signed
- Convert zyxel,nsa320-mcu to DT schema"
* tag 'hwmon-for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (81 commits)
hwmon: tmp401: Read "ti,n-factor" as signed
hwmon: (pmbus/lm25066) Fix PMBus coefficients for LM5064/5066/5066i
hwmon: (gpd-fan) Reject EC PWM value 0 as invalid
hwmon: (dell-smm) Add Dell Latitude 7530 to fan control whitelist
hwmon: temperature: add support for EMC1812
dt-bindings: hwmon: temperature: add support for EMC1812
hwmon: (gpd-fan): fix race condition between device removal and sysfs access
hwmon: (gpd-fan): upgrade log level from warn to err for platform device creation failure
hwmon: (gpd-fan): Initialize EC before registering hwmon device
hwmon: (gpd-fan): drop global driver data and use per-device allocation
hwmon: (pmbus/max34440): add support adpm12250
hwmon: (ina238) Add update_interval_us attribute
hwmon: Add update_interval_us chip attribute
hwmon: (ina238) Add support for samples and update_interval
gpio: gpio-ltc4283: Add support for the LTC4283 Swap Controller
hwmon: ltc4283: Add support for the LTC4283 Swap Controller
dt-bindings: hwmon: Document the LTC4283 Swap Controller
hwmon: (pmbus/xdp720) Fix driver issues xdp720/730
hwmon: (pmbus/xdp720) Add support for efuse xdp730
dt-bindings: hwmon/pmbus: Add Infineon xdp730
...
Diffstat (limited to 'Documentation')
35 files changed, 1717 insertions, 59 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-hwmon b/Documentation/ABI/testing/sysfs-class-hwmon index cfd0d0bab4839..b185bdfc7186a 100644 --- a/Documentation/ABI/testing/sysfs-class-hwmon +++ b/Documentation/ABI/testing/sysfs-class-hwmon @@ -27,6 +27,20 @@ Description: Some devices have a variable update rate or interval. This attribute can be used to change it to the desired value. +What: /sys/class/hwmon/hwmonX/update_interval_us +Description: + The interval at which the chip will update readings, + expressed in microseconds. + Unit: microsecond + + RW + + Some devices have a variable update rate or interval and + require finer-than-millisecond control. + This attribute can be used to change it to the desired value. + Drivers implementing this attribute should also implement + update_interval for millisecond-based userspace interfaces. + What: /sys/class/hwmon/hwmonX/inY_min Description: Voltage min value. diff --git a/Documentation/devicetree/bindings/hwmon/adi,ltc4283.yaml b/Documentation/devicetree/bindings/hwmon/adi,ltc4283.yaml new file mode 100644 index 0000000000000..05e2132ad4d86 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/adi,ltc4283.yaml @@ -0,0 +1,272 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwmon/adi,ltc4283.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: LTC4283 Negative Voltage Hot Swap Controller + +maintainers: + - Nuno Sá <nuno.sa@analog.com> + +description: | + The LTC4283 negative voltage hot swap controller drives an external N-channel + MOSFET to allow a board to be safely inserted and removed from a live + backplane. + + https://www.analog.com/media/en/technical-documentation/data-sheets/ltc4283.pdf + +properties: + compatible: + enum: + - adi,ltc4283 + + reg: + maxItems: 1 + + adi,rsense-nano-ohms: + description: Value of the sense resistor. + + adi,current-limit-sense-microvolt: + description: + The current limit sense voltage of the chip is adjustable between + 15mV and 30mV in 1mV steps. This effectively limits the current + on the load. + minimum: 15000 + maximum: 30000 + default: 15000 + + adi,current-limit-foldback-factor: + description: + Specifies the foldback factor for the current limit. The current limit + can be reduced (folded back) to one of four preset levels. The value + represents the percentage of the current limit sense voltage to use + during foldback. A value of 100 means no foldback. + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [10, 20, 50, 100] + default: 100 + + adi,cooling-delay-ms: + description: + Cooling time to apply after an overcurrent fault, FET bad or + external fault. + enum: [512, 1002, 2005, 4100, 8190, 16400, 32800, 65600] + default: 512 + + adi,fet-bad-timer-delay-ms: + description: + FET bad timer delay. After a FET bad status condition is detected, + this timer is started. If the condition persists for the + specified time, the FET is turned off and a fault is logged. + enum: [256, 512, 1002, 2005] + default: 256 + + adi,power-good-reset-on-fet: + description: + If set, resets the power good status when the MOSFET is turned off. + Otherwise, it resets when a low output voltage is detected. + type: boolean + + adi,fet-turn-off-disable: + description: + If set, the MOSFET is not turned off when a FET fault is detected. + type: boolean + + adi,tmr-pull-down-disable: + description: Disables 2uA pull-down current on the TMR pin. + type: boolean + + adi,dvdt-inrush-control-disable: + description: + Disables dV/dt inrush control during startup. In dV/dt mode, the inrush + current is limited by controlling a constant output voltage ramp rate. + When disabled, the inrush control mechanism is active current limiting. + type: boolean + + adi,fault-log-enable: + description: + If set, enables logging fault registers and ADC data into EEPROM upon a + fault. + type: boolean + + adi,vpower-drns-enable: + description: + If set, enables the attenuated MOSFET drain voltage to be monitored. This + effectively means that the MOSFET power is monitored. If not set, the + attenuated input voltage (and hence input power) is monitored. + type: boolean + + adi,external-fault-fet-off-enable: + description: Turns MOSFET off following an external fault. + type: boolean + + adi,undervoltage-retry-disable: + description: Do not retry to turn on the MOSFET after an undervoltage fault. + type: boolean + + adi,overvoltage-retry-disable: + description: Do not retry to turn on the MOSFET after an overvoltage fault. + type: boolean + + adi,external-fault-retry-enable: + description: Retry to turn on the MOSFET after an external fault. + type: boolean + + adi,overcurrent-retries: + description: Configures auto-retry following an Overcurrent fault. + $ref: /schemas/types.yaml#/definitions/string + enum: [latch-off, "1", "7", unlimited] + default: latch-off + + adi,fet-bad-retries: + description: + Configures auto-retry following a FET bad fault and a consequent MOSFET + turn off. + $ref: /schemas/types.yaml#/definitions/string + enum: [latch-off, "1", "7", unlimited] + default: latch-off + + adi,pgio1-func: + description: Configures the function of the PGIO1 pin. + $ref: /schemas/types.yaml#/definitions/string + enum: [inverted_power_good, power_good, gpio] + default: inverted_power_good + + adi,pgio2-func: + description: Configures the function of the PGIO2 pin. + $ref: /schemas/types.yaml#/definitions/string + enum: [inverted_power_good, power_good, gpio, active_current_limiting] + default: inverted_power_good + + adi,pgio3-func: + description: Configures the function of the PGIO3 pin. + $ref: /schemas/types.yaml#/definitions/string + enum: [inverted_power_good_input, power_good_input, gpio] + default: inverted_power_good_input + + adi,pgio4-func: + description: Configures the function of the PGIO4 pin. + $ref: /schemas/types.yaml#/definitions/string + enum: [inverted_external_fault, external_fault, gpio] + default: inverted_external_fault + + adi,gpio-on-adio1: + description: If set, the ADIO1 pin is used as a GPIO. + type: boolean + + adi,gpio-on-adio2: + description: If set, the ADIO2 pin is used as a GPIO. + type: boolean + + adi,gpio-on-adio3: + description: If set, the ADIO3 pin is used as a GPIO. + type: boolean + + adi,gpio-on-adio4: + description: If set, the ADIO4 pin is used as a GPIO. + type: boolean + + gpio-controller: true + + '#gpio-cells': + const: 2 + +dependencies: + adi,gpio-on-adio1: + - gpio-controller + - '#gpio-cells' + adi,gpio-on-adio2: + - gpio-controller + - '#gpio-cells' + adi,gpio-on-adio3: + - gpio-controller + - '#gpio-cells' + adi,gpio-on-adio4: + - gpio-controller + - '#gpio-cells' + adi,external-fault-retry-enable: + - adi,pgio4-func + adi,external-fault-fet-off-enable: + - adi,pgio4-func + +required: + - compatible + - reg + - adi,rsense-nano-ohms + +allOf: + - if: + properties: + adi,pgio1-func: + const: gpio + required: + - adi,pgio1-func + then: + required: + - gpio-controller + - '#gpio-cells' + + - if: + properties: + adi,pgio2-func: + const: gpio + required: + - adi,pgio2-func + then: + required: + - gpio-controller + - '#gpio-cells' + + - if: + properties: + adi,pgio3-func: + const: gpio + required: + - adi,pgio3-func + then: + required: + - gpio-controller + - '#gpio-cells' + + - if: + properties: + adi,pgio4-func: + const: gpio + required: + - adi,pgio4-func + then: + properties: + adi,external-fault-retry-enable: false + adi,external-fault-fet-off-enable: false + required: + - gpio-controller + - '#gpio-cells' + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + swap-controller@15 { + compatible = "adi,ltc4283"; + reg = <0x15>; + + adi,rsense-nano-ohms = <500>; + adi,current-limit-sense-microvolt = <25000>; + adi,current-limit-foldback-factor = <10>; + adi,cooling-delay-ms = <8190>; + adi,fet-bad-timer-delay-ms = <512>; + + adi,external-fault-fet-off-enable; + adi,pgio4-func = "external_fault"; + + adi,gpio-on-adio1; + adi,pgio1-func = "gpio"; + gpio-controller; + #gpio-cells = <2>; + }; + }; +... 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. + $ref: /schemas/types.yaml#/definitions/flag + required: - compatible - reg diff --git a/Documentation/devicetree/bindings/hwmon/microchip,emc1812.yaml b/Documentation/devicetree/bindings/hwmon/microchip,emc1812.yaml new file mode 100644 index 0000000000000..1a273621db826 --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/microchip,emc1812.yaml @@ -0,0 +1,193 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwmon/microchip,emc1812.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Microchip EMC1812/13/14/15/33 multichannel temperature sensor + +maintainers: + - Marius Cristea <marius.cristea@microchip.com> + +description: | + The Microchip EMC1812/13/14/15/33 is a high-accuracy 2-wire multichannel + low-voltage remote diode temperature monitor. + + The datasheet can be found here: + https://ww1.microchip.com/downloads/aemDocuments/documents/MSLD/ProductDocuments/DataSheets/EMC1812-3-4-5-33-Data-Sheet-DS20005751.pdf + + EMC1812 has one external remote temperature monitoring channel + EMC1813 has two external remote temperature monitoring channels + EMC1814 has three external remote temperature monitoring channels and + channels 2 and 3 support anti parallel diode + EMC1815 has four external remote temperature monitoring channels and + channels 1/2 and 3/4 support anti parallel diode + EMC1833 has two external remote temperature monitoring channels and + channels 1 and 2 support anti parallel diode + +properties: + compatible: + enum: + - microchip,emc1812 + - microchip,emc1813 + - microchip,emc1814 + - microchip,emc1815 + - microchip,emc1833 + + reg: + maxItems: 1 + + interrupts: + items: + - description: alert-therm2 asserts when the ALERT limit is exceeded. + - description: therm-addr asserts when the THERM limit is exceeded. + minItems: 1 + + interrupt-names: + items: + - const: alert-therm2 + - const: therm-addr + minItems: 1 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + microchip,enable-anti-parallel: + description: + Enable anti-parallel diode mode operation. EMC1814, EMC1815 and EMC1833 + support reading two external diodes in anti-parallel connection on the + same set of pins. Disabling APD functionality to implement substrate + diodes on devices that support APD eliminates the benefit of APD + (two diodes on one channel). + type: boolean + + microchip,parasitic-res-on-channel1-2: + description: + Indicates that the chip and the diodes/transistors are sufficiently + far apart that a parasitic resistance is added to the wires, which can + affect the measurements. Due to the availability of only a single + configuration bit in hardware, channels 1 and 2 are affected together. + If channel 2 is not available in hardware, this setting affects only + channel 1. + type: boolean + + microchip,parasitic-res-on-channel3-4: + description: + Indicates that the chip and the diodes/transistors are sufficiently + far apart that a parasitic resistance is added to the wires, which can + affect the measurements. Due to the availability of only a single + configuration bit in hardware, channels 3 and 4 are affected together. + If channel 4 is not available in hardware, this setting affects only + channel 3. + type: boolean + + vdd-supply: true + +patternProperties: + "^channel@[0-4]$": + description: | + Represents the temperature channels. + 0: Internal sensor + 1-4: External remote diodes + type: object + + properties: + reg: + maxItems: 1 + + label: + description: Unique name to identify which channel this is. + + required: + - reg + + additionalProperties: false + +required: + - compatible + - reg + - vdd-supply + +allOf: + # EMC1812: 1 Internal, 1 External Channels, No APD, + # parasitic-res-on-channel1-2: for channel 1 + - if: + properties: + compatible: + const: microchip,emc1812 + then: + properties: + microchip,enable-anti-parallel: false + microchip,parasitic-res-on-channel3-4: false + patternProperties: + "^channel@[2-4]$": false + + # EMC1813: 1 Internal, 2 External Channels, No APD, + # parasitic-res-on-channel1-2: on both channel 1 & 2 + - if: + properties: + compatible: + const: microchip,emc1813 + then: + properties: + microchip,enable-anti-parallel: false + microchip,parasitic-res-on-channel3-4: false + patternProperties: + "^channel@[3-4]$": false + + # EMC1833: 1 Internal, 2 External Channels, Supports APD, + # parasitic-res-on-channel1-2: on both channel 1 & 2 + - if: + properties: + compatible: + const: microchip,emc1833 + then: + properties: + microchip,parasitic-res-on-channel3-4: false + patternProperties: + "^channel@[3-4]$": false + + # EMC1814: 1 Internal, 3 External Channels, Supports APD, + # parasitic-res-on-channel1-2: on both channel 1 & 2 + # parasitic-res-on-channel3-4: for channel 3 + - if: + properties: + compatible: + const: microchip,emc1814 + then: + properties: + channel@4: false + +unevaluatedProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + temperature-sensor@4c { + compatible = "microchip,emc1813"; + reg = <0x4c>; + + #address-cells = <1>; + #size-cells = <0>; + + microchip,parasitic-res-on-channel1-2; + + vdd-supply = <&vdd>; + + channel@1 { + reg = <1>; + label = "External CH1 Temperature"; + }; + + channel@2 { + reg = <2>; + label = "External CH2 Temperature"; + }; + }; + }; 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: + - $ref: /schemas/regulator/regulator.yaml# + +properties: + compatible: + const: adi,max20830 + + reg: + maxItems: 1 + + vddh-supply: + description: + Phandle to the regulator that provides the VDDH power supply. + + avdd-supply: + description: + Phandle to the regulator that provides the AVDD power supply. + + ldoin-supply: + description: + Optional 2.5V to 5.5V LDO input supply. + + pwr-good-gpios: + description: + GPIO connected to the power-good status output pin. + maxItems: 1 + +required: + - compatible + - reg + - vddh-supply + +unevaluatedProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + regulator@30 { + compatible = "adi,max20830"; + reg = <0x30>; + vddh-supply = <&vddh>; + }; + }; +... diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20860a.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20860a.yaml new file mode 100644 index 0000000000000..dd238265d462b --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/pmbus/adi,max20860a.yaml @@ -0,0 +1,45 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwmon/pmbus/adi,max20860a.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices MAX20860A Step-Down Converter + +maintainers: + - Sanman Pradhan <psanman@juniper.net> + +description: | + The MAX20860A is a fully integrated step-down DC-DC switching regulator + with PMBus interface for monitoring input/output voltage, output current + and temperature. + + Datasheet: https://www.analog.com/en/products/max20860a.html + +allOf: + - $ref: /schemas/regulator/regulator.yaml# + +properties: + compatible: + const: adi,max20860a + + reg: + maxItems: 1 + +required: + - compatible + - reg + +unevaluatedProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + regulator@40 { + compatible = "adi,max20860a"; + reg = <0x40>; + }; + }; diff --git a/Documentation/devicetree/bindings/hwmon/pmbus/infineon,xdp720.yaml b/Documentation/devicetree/bindings/hwmon/pmbus/infineon,xdp720.yaml index 72bc3a5e7139a..4a949c53f7ae7 100644 --- a/Documentation/devicetree/bindings/hwmon/pmbus/infineon,xdp720.yaml +++ b/Documentation/devicetree/bindings/hwmon/pmbus/infineon,xdp720.yaml @@ -5,23 +5,31 @@ $id: http://devicetree.org/schemas/hwmon/pmbus/infineon,xdp720.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# -title: Infineon XDP720 Digital eFuse Controller +title: Infineon XDP720 / XDP730 Digital eFuse Controllers maintainers: - Ashish Yadav <ashish.yadav@infineon.com> description: | - The XDP720 is an eFuse with integrated current sensor and digital - controller. It provides accurate system telemetry (V, I, P, T) and - reports analog current at the IMON pin for post-processing. + The XDP720 and XDP730 are PMBus-compliant digital eFuse controllers + with an integrated current sensor. They provide accurate system + telemetry (V, I, P, T) and report analog current at the IMON pin for + post-processing. - Datasheet: - https://www.infineon.com/assets/row/public/documents/24/49/infineon-xdp720-001-datasheet-en.pdf + Both parts share the same PMBus register map and direct-format + coefficients; they differ in the GIMON gain step exposed via the + TELEMETRY_AVG register (bit 10) and in the VDD_VIN pin number + (XDP720: pin 9, XDP730: pin 20). + + Datasheets: + - XDP720: https://www.infineon.com/assets/row/public/documents/24/49/infineon-xdp720-001-datasheet-en.pdf + - XDP730: https://www.infineon.com/assets/row/public/documents/24/49/infineon-xdp730-001-datasheet-en.pdf properties: compatible: enum: - infineon,xdp720 + - infineon,xdp730 reg: maxItems: 1 @@ -33,9 +41,9 @@ properties: vdd-vin-supply: description: - Supply for the VDD_VIN pin (pin 9), the IC controller power supply. - Typically connected to the input bus (VIN) through a 100 ohm / 100 nF - RC filter. + Supply for the VDD_VIN pin (XDP720 pin 9, XDP730 pin 20), the IC + controller power supply. Typically connected to the input bus + (VIN) through a 100 ohm / 100 nF RC filter. required: - compatible @@ -50,7 +58,7 @@ examples: #address-cells = <1>; #size-cells = <0>; - hwmon@11 { + efuse@11 { compatible = "infineon,xdp720"; reg = <0x11>; vdd-vin-supply = <&vdd_vin>; 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/asus_ec_sensors.rst b/Documentation/hwmon/asus_ec_sensors.rst index 9ad3f0a57f55f..77a709517437a 100644 --- a/Documentation/hwmon/asus_ec_sensors.rst +++ b/Documentation/hwmon/asus_ec_sensors.rst @@ -29,9 +29,12 @@ Supported boards: * ROG MAXIMUS XI HERO * ROG MAXIMUS XI HERO (WI-FI) * ROG MAXIMUS Z690 FORMULA + * ROG MAXIMUS Z790 EXTREME * ROG STRIX B550-E GAMING * ROG STRIX B550-I GAMING + * ROG STRIX B650E-E GAMING WIFI * ROG STRIX B650E-I GAMING WIFI + * ROG STRIX B850-E GAMING WIFI * ROG STRIX B850-I GAMING WIFI * ROG STRIX X470-F GAMING * ROG STRIX X470-I GAMING 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/emc1812.rst b/Documentation/hwmon/emc1812.rst new file mode 100644 index 0000000000000..0b4fbcaaea71a --- /dev/null +++ b/Documentation/hwmon/emc1812.rst @@ -0,0 +1,67 @@ +.. SPDX-License-Identifier: GPL-2.0-or-later + +Kernel driver emc1812 +===================== + +Supported chips: + + * Microchip EMC1812, EMC1813, EMC1814, EMC1815, EMC1833 + + Prefix: 'emc1812' + + Datasheets: + + - https://ww1.microchip.com/downloads/aemDocuments/documents/MSLD/ProductDocuments/DataSheets/EMC1812-3-4-5-33-Data-Sheet-DS20005751.pdf + +Author: + Marius Cristea <marius.cristea@microchip.com> + + +Description +----------- + +The Microchip EMC181x/33 chips contain up to 4 remote temperature sensors +and one internal. +- The EMC1812 is a single channel remote temperature sensor. +- The EMC1813 and EMC1833 are dual channel remote temperature sensor. The +remote channels for this selection of devices can support substrate diodes, +discrete diode-connected transistors or CPU/GPU thermal diodes. +- The EMC1814 is a three channel remote temperature sensor that supports +Anti-Parallel Diode (APD) only on one channel. For the channel that does not +support APD functionality, substrate diodes, discrete diode-connected +transistors or CPU/GPU thermal diodes are supported. For the channel that +supports APD, only discrete diode-connected transistors may be implemented. +However, if APD is disabled on the EMC1814, then the channel that supports +APD will be functional with substrate diodes, discrete diode-connected +transistors and CPU/GPU thermal diodes. +- The EMC1815 is a four channel remote temperature sensor. + +The EMC1815 and EMC1833 support APD on all channels. When APD is enabled, +the channels support only diode-connected transistors. If APD is disabled, +then the channels will support substrate transistors, discrete diode-connected +transistors and CPU/GPU thermal diodes. + +Note: Disabling APD functionality to implement substrate diodes on devices +that support APD eliminates the benefit of APD (two diodes on one channel). + +The chips implement three limits for each sensor: low (tempX_min), high +(tempX_max) and critical (tempX_crit). The chips also implement an +hysteresis mechanism which applies to all limits. The relative difference +is stored in a single register on the chip, which means that the relative +difference between the limit and its hysteresis is always the same for +all three limits. + +This implementation detail implies the following: + +* When setting a limit, its hysteresis will automatically follow, the + difference staying unchanged. For example, if the old critical limit was + 80 degrees C, and the hysteresis was 75 degrees C, and you change the + critical limit to 90 degrees C, then the hysteresis will automatically + change to 85 degrees C. +* The hysteresis values can't be set independently. We decided to make + only tempX_crit_hyst writable, while all other hysteresis attributes + are read-only. Setting tempX_crit_hyst writes the difference between + tempX_crit_hyst and tempX_crit into the chip, and the same relative + hysteresis applies automatically to all other limits. +* The limits should be set before the hysteresis. At power up the device + starts with 10 degree hysteresis. 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/ina238.rst b/Documentation/hwmon/ina238.rst index 43950d1ec551f..a75b79e17d9df 100644 --- a/Documentation/hwmon/ina238.rst +++ b/Documentation/hwmon/ina238.rst @@ -106,4 +106,8 @@ energy1_input Energy measurement (uJ) temp1_input Die temperature measurement (mC) temp1_max Maximum die temperature threshold (mC) temp1_max_alarm Maximum die temperature alarm + +samples ADC averaging count (1, 4, 16, 64, 128, 256, 512, 1024) +update_interval Total ADC conversion cycle time including averaging (ms) +update_interval_us Total ADC conversion cycle time including averaging (us) ======================= ======================================================= diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 8b655e5d6b68b..4aa910569c316 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 @@ -68,7 +70,9 @@ Hardware Monitoring Kernel Drivers drivetemp ds1621 ds620 + e50sn12051 emc1403 + emc1812 emc2103 emc2305 emc6w201 @@ -145,7 +149,9 @@ Hardware Monitoring Kernel Drivers ltc4260 ltc4261 ltc4282 + ltc4283 ltc4286 + lx1308 macsmc-hwmon max127 max15301 @@ -158,6 +164,8 @@ Hardware Monitoring Kernel Drivers max197 max20730 max20751 + max20830 + max20860a max31722 max31730 max31760 @@ -185,6 +193,7 @@ 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/ltc4283.rst b/Documentation/hwmon/ltc4283.rst new file mode 100644 index 0000000000000..a650c595bc8f3 --- /dev/null +++ b/Documentation/hwmon/ltc4283.rst @@ -0,0 +1,267 @@ +.. SPDX-License-Identifier: GPL-2.0-only + +Kernel drivers ltc4283 +========================================== + +Supported chips: + + * Analog Devices LTC4283 + + Prefix: 'ltc4283' + + Addresses scanned: - + + Datasheet: + + https://www.analog.com/media/en/technical-documentation/data-sheets/ltc4283.pdf + +Author: Nuno Sá <nuno.sa@analog.com> + +Description +___________ + +The LTC4283 negative voltage hot swap controller drives an external N-channel +MOSFET to allow a board to be safely inserted and removed from a live backplane. +The device features programmable current limit with foldback and independently +adjustable inrush current to optimize the MOSFET safe operating area (SOA). The +SOA timer limits MOSFET temperature rise for reliable protection against +overstresses. An I2C interface and onboard gear-shift ADC allow monitoring of +board current, voltage, power, energy, and fault status. Additional features +respond to input UV/OV, interrupt the host when a fault has occurred, notify +when output power is good, detect insertion of a board, turn off the MOSFET +if an external supply monitor fails to indicate power good within a timeout +period, and auto-reboot after a programmable delay following a host commanded +turn-off. + +Sysfs entries +_____________ + +The following attributes are supported. Limits are read-write and all the other +attributes are read-only. Note that the VADIOx channels might not be available +if the ADIO pins are used as GPIOs (naturally also affects the respective +differential channels). + +======================= ========================================== +in0_lcrit_alarm Critical Undervoltage alarm +in0_crit_alarm Critical Overvoltage alarm +in0_reset_history Clears Under and Overvoltage fault logs. +in0_label Channel label (VIN) + +in1_input Output voltage (mV). +in1_min Undervoltage threshold +in1_max Overvoltage threshold +in1_lowest Lowest measured voltage +in1_highest Highest measured voltage +in1_reset_history Write 1 to reset history. +in1_min_alarm Undervoltage alarm +in1_max_alarm Overvoltage alarm +in1_label Channel label (VPWR) + +in2_input Output voltage (mV). +in2_min Undervoltage threshold +in2_max Overvoltage threshold +in2_lowest Lowest measured voltage +in2_highest Highest measured voltage +in2_reset_history Write 1 to reset history. +in2_min_alarm Undervoltage alarm +in2_max_alarm Overvoltage alarm +in2_enable Enable/Disable monitoring. +in2_label Channel label (VADI1) + +in3_input Output voltage (mV). +in3_min Undervoltage threshold +in3_max Overvoltage threshold +in3_lowest Lowest measured voltage +in3_highest Highest measured voltage +in3_reset_history Write 1 to reset history. +in3_min_alarm Undervoltage alarm +in3_max_alarm Overvoltage alarm +in3_enable Enable/Disable monitoring. +in3_label Channel label (VADI2) + +in4_input Output voltage (mV). +in4_min Undervoltage threshold +in4_max Overvoltage threshold +in4_lowest Lowest measured voltage +in4_highest Highest measured voltage +in4_reset_history Write 1 to reset history. +in4_min_alarm Undervoltage alarm +in4_max_alarm Overvoltage alarm +in4_enable Enable/Disable monitoring. +in4_label Channel label (VADI3) + +in5_input Output voltage (mV). +in5_min Undervoltage threshold +in5_max Overvoltage threshold +in5_lowest Lowest measured voltage +in5_highest Highest measured voltage +in5_reset_history Write 1 to reset history. +in5_min_alarm Undervoltage alarm +in5_max_alarm Overvoltage alarm +in5_enable Enable/Disable monitoring. +in5_label Channel label (VADI4) + +in6_input Output voltage (mV). +in6_min Undervoltage threshold +in6_max Overvoltage threshold +in6_lowest Lowest measured voltage +in6_highest Highest measured voltage +in6_reset_history Write 1 to reset history. +in6_min_alarm Undervoltage alarm +in6_max_alarm Overvoltage alarm +in6_enable Enable/Disable monitoring. +in6_label Channel label (VADIO1) + +in7_input Output voltage (mV). +in7_min Undervoltage threshold +in7_max Overvoltage threshold +in7_lowest Lowest measured voltage +in7_highest Highest measured voltage +in7_reset_history Write 1 to reset history. +in7_min_alarm Undervoltage alarm +in7_max_alarm Overvoltage alarm +in7_enable Enable/Disable monitoring. +in7_label Channel label (VADIO2) + +in8_input Output voltage (mV). +in8_min Undervoltage threshold +in8_max Overvoltage threshold +in8_lowest Lowest measured voltage +in8_highest Highest measured voltage +in8_reset_history Write 1 to reset history. +in8_min_alarm Undervoltage alarm +in8_max_alarm Overvoltage alarm +in8_enable Enable/Disable monitoring. +in8_label Channel label (VADIO3) + +in9_input Output voltage (mV). +in9_min Undervoltage threshold +in9_max Overvoltage threshold +in9_lowest Lowest measured voltage +in9_highest Highest measured voltage +in9_reset_history Write 1 to reset history. +in9_min_alarm Undervoltage alarm +in9_max_alarm Overvoltage alarm +in9_enable Enable/Disable monitoring. +in9_label Channel label (VADIO4) + +in10_input Output voltage (mV). +in10_min Undervoltage threshold +in10_max Overvoltage threshold +in10_lowest Lowest measured voltage +in10_highest Highest measured voltage +in10_reset_history Write 1 to reset history. +in10_min_alarm Undervoltage alarm +in10_max_alarm Overvoltage alarm +in10_enable Enable/Disable monitoring. +in10_label Channel label (DRNS) + +in11_input Output voltage (mV). +in11_min Undervoltage threshold +in11_max Overvoltage threshold +in11_lowest Lowest measured voltage +in11_highest Highest measured voltage +in11_reset_history Write 1 to reset history. + Also clears fet bad and short fault logs. +in11_min_alarm Undervoltage alarm +in11_max_alarm Overvoltage alarm +in11_enable Enable/Disable monitoring +in11_fault Failure in the MOSFET. Either bad or shorted FET. +in11_label Channel label (DRAIN) + +in12_input Output voltage (mV). +in12_min Undervoltage threshold +in12_max Overvoltage threshold +in12_lowest Lowest measured voltage +in12_highest Highest measured voltage +in12_reset_history Write 1 to reset history. +in12_min_alarm Undervoltage alarm +in12_max_alarm Overvoltage alarm +in12_enable Enable/Disable monitoring. +in12_label Channel label (ADIN2-ADIN1) + +in13_input Output voltage (mV). +in13_min Undervoltage threshold +in13_max Overvoltage threshold +in13_lowest Lowest measured voltage +in13_highest Highest measured voltage +in13_reset_history Write 1 to reset history. +in13_min_alarm Undervoltage alarm +in13_max_alarm Overvoltage alarm +in13_enable Enable/Disable monitoring. +in13_label Channel label (ADIN4-ADIN3) + +in14_input Output voltage (mV). +in14_min Undervoltage threshold +in14_max Overvoltage threshold +in14_lowest Lowest measured voltage +in14_highest Highest measured voltage +in14_reset_history Write 1 to reset history. +in14_min_alarm Undervoltage alarm +in14_max_alarm Overvoltage alarm +in14_enable Enable/Disable monitoring. +in14_label Channel label (ADIO2-ADIO1) + +in15_input Output voltage (mV). +in15_min Undervoltage threshold +in15_max Overvoltage threshold +in15_lowest Lowest measured voltage +in15_highest Highest measured voltage +in15_reset_history Write 1 to reset history. +in15_min_alarm Undervoltage alarm +in15_max_alarm Overvoltage alarm +in15_enable Enable/Disable monitoring. +in15_label Channel label (ADIO4-ADIO3) + +curr1_input Sense current (mA) +curr1_min Undercurrent threshold +curr1_max Overcurrent threshold +curr1_lowest Lowest measured current +curr1_highest Highest measured current +curr1_reset_history Write 1 to reset curr1 history. + Also clears overcurrent fault logs. +curr1_min_alarm Undercurrent alarm +curr1_max_alarm Overcurrent alarm +curr1_crit_alarm Critical Overcurrent alarm +curr1_label Channel label (ISENSE) + +power1_input Power (in uW) +power1_min Low power threshold +power1_max High power threshold +power1_input_lowest Historical minimum power use +power1_input_highest Historical maximum power use +power1_reset_history Write 1 to reset power1 history. + Also clears power fault logs. +power1_min_alarm Low power alarm +power1_max_alarm High power alarm +power1_label Channel label (Power) + +energy1_input Measured energy over time (in microJoule) +energy1_enable Enable/Disable Energy accumulation +======================= ========================================== + +DebugFs entries +_______________ + +The chip also has a fault log register where failures can be logged. Hence, +as these are logging events, we give access to them in debugfs. Note that +even if some failure is detected in these logs, it does necessarily mean +that the failure is still present. As mentioned in the proper Sysfs entries, +these logs can be cleared by writing in the proper reset_history attribute. + +.. warning:: The debugfs interface is subject to change without notice + and is only available when the kernel is compiled with + ``CONFIG_DEBUG_FS`` defined. + +``/sys/kernel/debug/i2c/i2c-[X]/[X]-addr/`` +contains the following attributes: + +======================= ========================================== +power1_failed_fault_log Set to 1 by a power1 fault occurring. +power1_good_input_fault_log Set to 1 by a power1 good input fault occurring at PGIO3. +in11_fet_short_fault_log Set to 1 when a FET-short fault occurs. +in11_fet_bad_fault_log Set to 1 when a FET-BAD fault occurs. +in0_lcrit_fault_log Set to 1 by a VIN undervoltage fault occurring. +in0_crit_fault_log Set to 1 by a VIN overvoltage fault occurring. +curr1_crit_fault_log Set to 1 by an overcurrent fault occurring. +======================= ========================================== 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/max20860a.rst b/Documentation/hwmon/max20860a.rst new file mode 100644 index 0000000000000..ea6d2228fafc0 --- /dev/null +++ b/Documentation/hwmon/max20860a.rst @@ -0,0 +1,57 @@ +.. SPDX-License-Identifier: GPL-2.0 + +Kernel driver max20860a +======================= + +Supported chips: + + * Analog Devices MAX20860A + + Prefix: 'max20860a' + + Addresses scanned: - + + Datasheet: https://www.analog.com/en/products/max20860a.html + +Author: + + - Syed Arif <arif.syed@hpe.com> + - Sanman Pradhan <psanman@juniper.net> + + +Description +----------- + +This driver supports hardware monitoring for Analog Devices MAX20860A +Step-Down Switching Regulator with PMBus Interface. + +The MAX20860A is a 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. + +Usage Notes +----------- + +This driver does not auto-detect devices. You will have to instantiate +the devices explicitly. + +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 +temp2_input Measured temperature (secondary) +================= ======================================== 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/max34440.rst b/Documentation/hwmon/max34440.rst index d6d4fbc863d96..e7421f4dbf38f 100644 --- a/Documentation/hwmon/max34440.rst +++ b/Documentation/hwmon/max34440.rst @@ -19,6 +19,14 @@ Supported chips: Datasheet: - + * ADI ADPM12250 + + Prefixes: 'adpm12250' + + Addresses scanned: - + + Datasheet: - + * Maxim MAX34440 Prefixes: 'max34440' @@ -87,11 +95,11 @@ This driver supports multiple devices: hardware monitoring for Maxim MAX34440 PMBus 6-Channel Power-Supply Manager, MAX34441 PMBus 5-Channel Power-Supply Manager and Intelligent Fan Controller, and MAX34446 PMBus Power-Supply Data Logger; PMBus Voltage Monitor and Sequencers for MAX34451, MAX34460, and -MAX34461; PMBus DC/DC Power Module ADPM12160, and ADPM12200. The MAX34451 -supports monitoring voltage or current of 12 channels based on GIN pins. The -MAX34460 supports 12 voltage channels, and the MAX34461 supports 16 voltage -channels. The ADPM12160, and ADPM12200 also monitors both input and output -of voltage and current. +MAX34461; PMBus DC/DC Power Module ADPM12160, ADPM12200, and ADPM12250. The +MAX34451 supports monitoring voltage or current of 12 channels based on GIN +pins. The MAX34460 supports 12 voltage channels, and the MAX34461 supports 16 +voltage channels. The ADPM12160, ADPM12200, and ADPM12250 also monitors both +input and output of voltage and current. The driver is a client driver to the core PMBus driver. Please see Documentation/hwmon/pmbus.rst for details on PMBus client drivers. @@ -149,7 +157,7 @@ in[1-6]_reset_history Write any value to reset history. .. note:: - MAX34446 only supports in[1-4]. - - ADPM12160, and ADPM12200 only supports in[1-2]. Label is "vin1" + - ADPM12160, ADPM12200, and ADPM12250 only supports in[1-2]. Label is "vin1" and "vout1" respectively. Curr @@ -172,8 +180,9 @@ curr[1-6]_reset_history Write any value to reset history. - in6 and curr6 attributes only exist for MAX34440. - MAX34446 only supports curr[1-4]. - - For ADPM12160, and ADPM12200, curr[1] is "iin1" and curr[2-6] - are "iout[1-5]". + - For ADPM12160, ADPM12200, and ADPM12250, curr[1] is "iin1" + - For ADPM12160, and ADPM12200 curr[2-6] are "iout[1-5]". + - For ADPM12250, curr[2-4] are "iout[1-3]". Power ~~~~~ @@ -209,7 +218,7 @@ temp[1-8]_reset_history Write any value to reset history. .. note:: - temp7 and temp8 attributes only exist for MAX34440. - MAX34446 only supports temp[1-3]. - - ADPM12160, and ADPM12200 only supports temp[1]. + - ADPM12160, ADPM12200, and ADPM12250 only supports temp[1]. .. note:: 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/pmbus.rst b/Documentation/hwmon/pmbus.rst index a8e01a5b96da3..23c42c3122746 100644 --- a/Documentation/hwmon/pmbus.rst +++ b/Documentation/hwmon/pmbus.rst @@ -3,17 +3,18 @@ Kernel driver pmbus Supported chips: - * Flex BMR310, BMR453, BMR454, BMR456, BMR457, BMR458, BMR480, - BMR490, BMR491, BMR492 + * Flex BMR310, BMR316, BMR321, BMR350, BMR351, BMR453, BMR454, + BMR456, BMR457, BMR458, BMR480, BMR490, BMR491, BMR492 - Prefixes: 'bmr310', 'bmr453', 'bmr454', 'bmr456', 'bmr457', 'bmr458', 'bmr480', + Prefixes: 'bmr310', 'bmr316', 'bmr321', 'bmr350', 'bmr351', + 'bmr453', 'bmr454', 'bmr456', 'bmr457', 'bmr458', 'bmr480', 'bmr490', 'bmr491', 'bmr492' Addresses scanned: - Datasheets: - https://flexpowermodules.com/products + https://flex.com/products/power-modules/product-selector * ON Semiconductor ADP4000, NCP4200, NCP4208 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. diff --git a/Documentation/hwmon/sysfs-interface.rst b/Documentation/hwmon/sysfs-interface.rst index f76e9f8cc1ada..94e1bbce172a3 100644 --- a/Documentation/hwmon/sysfs-interface.rst +++ b/Documentation/hwmon/sysfs-interface.rst @@ -106,6 +106,10 @@ Global attributes `update_interval` The interval at which the chip will update readings. +`update_interval_us` + The interval at which the chip will update readings, + expressed in microseconds for finer resolution. + ******** Voltages |