The latest development version of this page may be more current than this released 3.7.0 version.

adi,adltc2990 (on i2c bus)

Vendor: Analog Devices, Inc.

Description

ADLTC2990 Quad I2C Voltage, Current and Temperature Monitor

Properties

Properties not inherited from the base binding file.

Name

Type

Details

friendly-name

string

 
Human readable string describing the sensor. It can be used to
distinguish multiple instances of the same model (e.g., lid accelerometer
vs. base accelerometer in a laptop) to a host operating system.

This property is defined in the Generic Sensor Property Usages of the HID
Usage Tables specification
(https://usb.org/sites/default/files/hut1_3_0.pdf, section 22.5).

supply-gpios

phandle-array

 
GPIO specifier that controls power to the device.

This property should be provided when the device has a dedicated
switch that controls power to the device.  The supply state is
entirely the responsibility of the device driver.

Contrast with vin-supply.

vin-supply

phandle

 
Reference to the regulator that controls power to the device.
The referenced devicetree node must have a regulator compatible.

This property should be provided when device power is supplied
by a shared regulator.  The supply state is dependent on the
request status of all devices fed by the regulator.

Contrast with supply-gpios.  If both properties are provided
then the regulator must be requested before the supply GPIOS is
set to an active state, and the supply GPIOS must be set to an
inactive state before releasing the regulator.

temperature-format

int

 
Define the temperature format. As per the datasheet,
b7 Temperature Format Temperature Reported In; Celsius = 0 (Default), Kelvin = 1

Legal values: 0, 1

acquistion-format

int

 
Define the acquisition format. As per the datasheet,
b6 Repeat/Single Repeated Acquisition = 0 (Default), Single Acquisition = 1

Legal values: 0, 1

measurement-mode

array

 
An array of two integers for configuring the chip measurement mode.

The first integer defines the bits 2..0 in the control register. In all
cases the internal temperature and supply voltage are measured. In
addition the following input measurements are enabled per mode:
As per the datasheet,
-------------------------------------------
b[2:0] | Mode [2:0] | Mode Description
   0   |  0 0 0     | V1, V2, TR2 (Default)
   1   |  0 0 1     | V1 – V2, TR2
   2   |  0 1 0     | V1 – V2, V3, V4
   3   |  0 1 1     | TR1, V3, V4
   4   |  1 0 0     | TR1, V3 – V4
   5   |  1 0 1     | TR1, TR2
   6   |  1 1 0     | V1 – V2, V3 – V4
   7   |  1 1 1     | V1, V2, V3, V4
-------------------------------------------
The second integer defines the bits 4..3 in the control register. This
allows a subset of the measurements to be enabled:
As Per the Datasheet,
------------------------------------------------------------
b[4:3] | Mode [4:3] | Mode Description
   0   |  0 0       | Internal Temperature Only (Default)
   1   |  0 1       | TR1, V1 or V1 – V2 Only per Mode [2:0]
   2   |  1 0       | TR2, V3 or V3 – V4 Only per Mode [2:0]
   3   |  1 1       | All Measurements per Mode [2:0]
------------------------------------------------------------

Default value: [0, 0]

pins-v1-v2-current-resistor

int

 
Define the resistor to be used for measuring current in microohms

pin-v1-voltage-divider-resistors

array

 
Define the resistor to be used for measuring Vout in milliohms

pin-v2-voltage-divider-resistors

array

 
Define the resistor to be used for measuring Vout in milliohms

pins-v3-v4-current-resistor

int

 
Define the resistor to be used for measuring current in microohms

pin-v3-voltage-divider-resistors

array

 
Define the resistor to be used for measuring Vout in milliohms

pin-v4-voltage-divider-resistors

array

 
Define the resistor to be used for measuring Vout in milliohms