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