TI INA219 Bidirectional Current/Power Sensor 바인딩

:orphan:

.. raw:: html

    <!--
    FIXME: do not limit page width until content uses another representation
    format other than tables
    -->
    <style>.wy-nav-content { max-width: none; !important }</style>

.. dtcompatible:: ti,ina219
.. _dtbinding_ti_ina219:

ti,ina219 (on i2c bus)
######################

Vendor: :ref:`Texas Instruments <dt_vendor_ti>`

Description
***********



.. code-block:: none

   Texas Instruments Bidirectional Current/Power Sensor

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.



         * - ``lsb-microamp``
           - ``int``
           - .. code-block:: none

                Current LSB in microAmpere
                Current LSB = max expected current [A] / 2^15
                example: 100 -> ~3A



             This property is **required**.

         * - ``shunt-milliohm``
           - ``int``
           - .. code-block:: none

                Value of the shunt resistor in milliOhm



             This property is **required**.

         * - ``brng``
           - ``int``
           - .. code-block:: none

                Bus Voltage Range
                0 = 16 V FSR
                1 = 32 V FSR

                The default of 32V is the power-on reset value of the device.

                Should the expected bus voltage be below 16V set this to 0.



             Default value: ``1``

             Legal values: ``0``, ``1``

         * - ``pg``
           - ``int``
           - .. code-block:: none

                Programmable Gain
                0 = 1  -> ±40 mV
                1 = /2 -> ±80 mV
                2 = /4 -> ±160 mV
                3 = /8 -> ±320 mV

                The default of ±320 mV is the power-on reset value of the device.

                In case the expected voltage drop across the shunt resistor is lower
                one can adjust this to get more accurate readings.



             Default value: ``3``

             Legal values: ``0``, ``1``, ``2``, ``3``

         * - ``badc``
           - ``int``
           - .. code-block:: none

                Bus ADC configuration
                0  = 9 bit -> 84 µs
                1  = 10 bit -> 148 µs
                2  = 11 bit -> 276 µs
                3  = 12 bit -> 532 µs
                9  = 12 bit - 2 sample averaging -> 1.06 ms
                10 = 12 bit - 4 sample averaging -> 2.13 ms
                11 = 12 bit - 8 sample averaging -> 4.26 ms
                12 = 12 bit - 16 sample averaging -> 8.51 ms
                13 = 12 bit - 32 sample averaging -> 17.02 ms
                14 = 12 bit - 64 sample averaging -> 34.05 ms
                15 = 12 bit - 128 sample averaging -> 68.10 ms

                The default of 12 bit is the power-on reset value of the device.

                Lowering the resolution of the ADC gives less accurate readings but
                cuts down on conversion times.

                Averaging over multiple samples gives more stable readings but adds
                to overall conversion time.



             Default value: ``3``

             Legal values: ``0``, ``1``, ``2``, ``3``, ``9``, ``10``, ``11``, ``12``, ``13``, ``14``, ``15``

         * - ``sadc``
           - ``int``
           - .. code-block:: none

                Shunt ADC configuration
                0  = 9 bit -> 84 µs
                1  = 10 bit -> 148 µs
                2  = 11 bit -> 276 µs
                3  = 12 bit -> 532 µs
                9  = 12 bit - 2 sample averaging -> 1.06 ms
                10 = 12 bit - 4 sample averaging -> 2.13 ms
                11 = 12 bit - 8 sample averaging -> 4.26 ms
                12 = 12 bit - 16 sample averaging -> 8.51 ms
                13 = 12 bit - 32 sample averaging -> 17.02 ms
                14 = 12 bit - 64 sample averaging -> 34.05 ms
                15 = 12 bit - 128 sample averaging -> 68.10 ms

                The default of 12 bit is the power-on reset value of the device.

                Lowering the resolution of the ADC gives less accurate readings but
                cuts down on conversion times.

                Averaging over multiple samples gives more stable readings but adds
                to overall conversion time.



             Default value: ``3``

             Legal values: ``0``, ``1``, ``2``, ``3``, ``9``, ``10``, ``11``, ``12``, ``13``, ``14``, ``15``



   .. 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,ina219" 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:`dt-important-props` for more information.

         * - ``compatible``
           - ``string-array``
           - .. code-block:: none

                compatible strings


             This property is **required**.

             See :ref:`dt-important-props` for more information.

         * - ``reg``
           - ``array``
           - .. code-block:: none

                register space


             This property is **required**.

             See :ref:`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:`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:`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().