:orphan:
.. raw:: html
.. dtcompatible:: ti,ina226
.. _dtbinding_ti_ina226:
ti,ina226 (on i2c bus)
######################
Vendor: :ref:`Texas Instruments `
Description
***********
.. code-block:: none
TI INA226 Bidirectional Current and Power Monitor.
The file should be included in the
DeviceTree as it provides macros that can be used for initializing the
configuration registers.
Properties
**********
.. tabs::
.. group-tab:: Node specific properties
Properties not inherited from the base binding file.
.. list-table::
:widths: 1 1 4
:header-rows: 1
* - Name
- Type
- Details
* - ``friendly-name``
- ``string``
- .. code-block:: none
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``
- .. code-block:: none
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``
- .. code-block:: none
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.
* - ``avg-count``
- ``int``
- .. code-block:: none
Number of samples to average (applies to all inputs).
Default is the power-on reset value.
Default value: ``1``
Legal values: ``1``, ``4``, ``16``, ``64``, ``128``, ``256``, ``512``, ``1024``
* - ``vbus-conversion-time-us``
- ``int``
- .. code-block:: none
Vbus conversion time in microseconds.
Default is the power-on reset value.
Default value: ``1100``
Legal values: ``140``, ``204``, ``332``, ``588``, ``1100``, ``2116``, ``4156``, ``8244``
* - ``vshunt-conversion-time-us``
- ``int``
- .. code-block:: none
Vshunt conversion time in microseconds.
Default is the power-on reset value.
Default value: ``1100``
Legal values: ``140``, ``204``, ``332``, ``588``, ``1100``, ``2116``, ``4156``, ``8244``
* - ``operating-mode``
- ``string``
- .. code-block:: none
Selects mode of operation.
Default is the power-on reset value.
Default value: ``Shunt and Bus, Continuous``
Legal values: ``'Power-Down (or Shutdown)'``, ``'Shunt Voltage, Triggered'``, ``'Bus Voltage, Triggered'``, ``'Shunt and Bus, Triggered'``, ``'Power-Down (or Shutdown)'``, ``'Shunt Voltage, Continuous'``, ``'Bus Voltage, Continuous'``, ``'Shunt and Bus, Continuous'``
* - ``current-lsb-microamps``
- ``int``
- .. code-block:: none
Current LSB value in microAmpere.
This value gives the measurement resolution for current measurement.
Formula: current-lsb [μA] = maximum expected current [μA] / 2^15
Higher resolution means lower range of current measurement, vice versa.
For example, if maximum expected current is 15 [A]:
then, current-lsb [μA] = 15000000 [μA] / 2^15 ~= 457.763 [μA].
Note: rounded values may be used for convenience, e.g. 500uA/LSB.
This property is **required**.
* - ``rshunt-micro-ohms``
- ``int``
- .. code-block:: none
Shunt resistor value in micro-ohms.
This property is **required**.
.. group-tab:: Deprecated node specific properties
Deprecated properties not inherited from the base binding file.
(None)
.. group-tab:: Base properties
Properties inherited from the base binding file, which defines
common properties that may be set on many nodes. Not all of these
may apply to the "ti,ina226" compatible.
.. list-table::
:widths: 1 1 4
:header-rows: 1
* - Name
- Type
- Details
* - ``wakeup-source``
- ``boolean``
- .. code-block:: none
Property to identify that a device can be used as wake up source.
When this property is provided a specific flag is set into the
device that tells the system that the device is capable of
wake up the system.
Wake up capable devices are disabled (interruptions will not wake up
the system) by default but they can be enabled at runtime if necessary.
* - ``power-domain``
- ``phandle``
- .. code-block:: none
Power domain the device belongs to.
The device will be notified when the power domain it belongs to is either
suspended or resumed.
* - ``zephyr,pm-device-runtime-auto``
- ``boolean``
- .. code-block:: none
Automatically configure the device for runtime power management after the
init function runs.
* - ``zephyr,disabling-power-states``
- ``phandles``
- .. code-block:: none
List of power states that will disable this device power.
* - ``status``
- ``string``
- .. code-block:: none
indicates the operational status of a device
Legal values: ``'ok'``, ``'okay'``, ``'disabled'``, ``'reserved'``, ``'fail'``, ``'fail-sss'``
See :ref:`zephyr:dt-important-props` for more information.
* - ``compatible``
- ``string-array``
- .. code-block:: none
compatible strings
This property is **required**.
See :ref:`zephyr:dt-important-props` for more information.
* - ``reg``
- ``array``
- .. code-block:: none
register space
This property is **required**.
See :ref:`zephyr:dt-important-props` for more information.
* - ``reg-names``
- ``string-array``
- .. code-block:: none
name of each register space
* - ``interrupts``
- ``array``
- .. code-block:: none
interrupts for device
See :ref:`zephyr:dt-important-props` for more information.
* - ``interrupts-extended``
- ``compound``
- .. code-block:: none
extended interrupt specifier for device
* - ``interrupt-names``
- ``string-array``
- .. code-block:: none
name of each interrupt
* - ``interrupt-parent``
- ``phandle``
- .. code-block:: none
phandle to interrupt controller node
* - ``label``
- ``string``
- .. code-block:: none
Human readable string describing the device (used as device_get_binding() argument)
See :ref:`zephyr:dt-important-props` for more information.
This property is **deprecated**.
* - ``clocks``
- ``phandle-array``
- .. code-block:: none
Clock gate information
* - ``clock-names``
- ``string-array``
- .. code-block:: none
name of each clock
* - ``#address-cells``
- ``int``
- .. code-block:: none
number of address cells in reg property
* - ``#size-cells``
- ``int``
- .. code-block:: none
number of size cells in reg property
* - ``dmas``
- ``phandle-array``
- .. code-block:: none
DMA channels specifiers
* - ``dma-names``
- ``string-array``
- .. code-block:: none
Provided names of DMA channel specifiers
* - ``io-channels``
- ``phandle-array``
- .. code-block:: none
IO channels specifiers
* - ``io-channel-names``
- ``string-array``
- .. code-block:: none
Provided names of IO channel specifiers
* - ``mboxes``
- ``phandle-array``
- .. code-block:: none
mailbox / IPM channels specifiers
* - ``mbox-names``
- ``string-array``
- .. code-block:: none
Provided names of mailbox / IPM channel specifiers
* - ``zephyr,deferred-init``
- ``boolean``
- .. code-block:: none
Do not initialize device automatically on boot. Device should be manually
initialized using device_init().