ti,ina3221 (on i2c bus)

Vendor: Texas Instruments

Description

Texas Instruments INA3221 Triple-Channel Current/Power Monitor

Properties

Properties not inherited from the base binding file.

Name

Type

Details

conv-time-shunt

int

 
Shunt-voltage conversion time.
The default of 1.1 ms is the power-on reset value of the device.
0 = 140 μs
1 = 204 μs
2 = 332 μs
3 = 588 μs
4 = 1.1 ms (default)
5 = 2.116 ms
6 = 4.156 ms
7 = 8.244 ms

Default value: 4

Legal values: 0, 1, 2, 3, 4, 5, 6, 7

conv-time-bus

int

 
Bus-voltage conversion time.
The default of 1.1 ms is the power-on reset value of the device.
0 = 140 μs
1 = 204 μs
2 = 332 μs
3 = 588 μs
4 = 1.1 ms (default)
5 = 2.116 ms
6 = 4.156 ms
7 = 8.244 ms

Default value: 4

Legal values: 0, 1, 2, 3, 4, 5, 6, 7

avg-mode

int

 
Averaging mode (number of samples that are collected and averaged together).
The default of one sample (no averaging) is the power-on reset value of the device.
0 = 1 (default)
1 = 4
2 = 16
3 = 64
4 = 128
5 = 256
6 = 512
7 = 1024

Legal values: 0, 1, 2, 3, 4, 5, 6, 7

enable-channel

array

 
List of flags to enable or disable each of the three channels.

Default value: [1, 1, 1]

shunt-resistors

array

 
List of shunt resistor values for all three channels in mOhms.

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.