129 lines
2.8 KiB
YAML
129 lines
2.8 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/hwmon/adi,ltc2991.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Analog Devices LTC2991 Octal I2C Voltage, Current and Temperature Monitor
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maintainers:
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- Antoniu Miclaus <antoniu.miclaus@analog.com>
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description: |
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The LTC2991 is used to monitor system temperatures, voltages and currents.
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Through the I2C serial interface, the eight monitors can individually measure
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supply voltages and can be paired for differential measurements of current
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sense resistors or temperature sensing transistors.
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Datasheet:
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https://www.analog.com/en/products/ltc2991.html
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properties:
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compatible:
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const: adi,ltc2991
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reg:
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maxItems: 1
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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vcc-supply: true
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patternProperties:
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"^channel@[0-3]$":
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type: object
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description:
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Represents the differential/temperature channels.
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properties:
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reg:
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description:
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The channel number. LTC2991 can monitor 4 currents/temperatures.
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items:
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minimum: 0
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maximum: 3
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shunt-resistor-micro-ohms:
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description:
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The value of curent sense resistor in micro ohms. Pin configuration is
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set for differential input pair.
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adi,temperature-enable:
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description:
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Enables temperature readings. Pin configuration is set for remote
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diode temperature measurement.
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type: boolean
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required:
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- reg
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allOf:
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- if:
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required:
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- shunt-resistor-micro-ohms
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then:
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properties:
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adi,temperature-enable: false
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additionalProperties: false
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required:
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- compatible
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- reg
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- vcc-supply
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additionalProperties: false
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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hwmon@48 {
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compatible = "adi,ltc2991";
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reg = <0x48>;
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vcc-supply = <&vcc>;
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};
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};
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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hwmon@48 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "adi,ltc2991";
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reg = <0x48>;
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vcc-supply = <&vcc>;
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channel@0 {
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reg = <0x0>;
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shunt-resistor-micro-ohms = <100000>;
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};
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channel@1 {
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reg = <0x1>;
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shunt-resistor-micro-ohms = <100000>;
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};
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channel@2 {
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reg = <0x2>;
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adi,temperature-enable;
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};
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channel@3 {
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reg = <0x3>;
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adi,temperature-enable;
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};
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};
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};
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...
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