ISSI IS31FL3194 3채널 LED Driver 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:: issi,is31fl3194
.. _dtbinding_issi_is31fl3194:

issi,is31fl3194 (on i2c bus)
############################

Vendor: :ref:`Integrated Silicon Solutions Inc. <dt_vendor_issi>`

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



.. code-block:: none

   IS31FL3194 3-channel LED driver with programmable pattern sequencing

   This driver supports single-channel and RGB LEDs. For single channel LEDs,
   the led_set_brightness() API can be used to set the brightness of each LED.
   For RGB LEDs, the led_set_color() API can be used to set the red, green and
   blue components; the driver takes care of routing to the outputs described
   by the color-mapping property.

   The LED_SHELL application can be used for testing.

   The following defines a single RGB LED in the is31fl3194 DT node:

     is31fl3194@53 {
       compatible = "issi,is31fl3194";
       reg = <0x53>;

       led_0 {
         label = "RGB LED";
         color-mapping =
           <LED_COLOR_ID_RED>,
           <LED_COLOR_ID_GREEN>,
           <LED_COLOR_ID_BLUE>;
       };
     };

   The following example defines three single-channel LEDs in the is31fl3194 DT node:

     is31fl3194@53 {
       compatible = "issi,is31fl3194";
       reg = <0x53>;

       led_0 {
         label = "RED LED";
         color-mapping = <LED_COLOR_ID_RED>;
       };

       led_1 {
         label = "GREEN LED";
         color-mapping = <LED_COLOR_ID_GREEN>;
       };

       led_2 {
         label = "BLUE LED";
         color-mapping = <LED_COLOR_ID_BLUE>;
       };
     };

Properties
**********

Top level properties
====================


These property descriptions apply to "issi,is31fl3194"
nodes themselves. This page also describes child node
properties in the following sections.

.. 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

         * - ``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.





   .. 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 "issi,is31fl3194" 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

                device address on i2c bus


             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().






Child node properties
=====================

.. list-table::
   :widths: 1 1 4
   :header-rows: 1

   * - Name
     - Type
     - Details

   * - ``label``
     - ``string``
     - .. code-block:: none

          Human readable string describing the LED


       This property is **required**.

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

   * - ``color-mapping``
     - ``array``
     - .. code-block:: none

          Channel to color mapping of a multicolor LED. If a LED supports
          several colors, then the color-mapping property can be used to
          describe how the hardware channels and the colors are mapped.

          For example the channel to color mapping of RGB LEDs would be

             color-mapping =
                  <LED_COLOR_ID_RED>,
                  <LED_COLOR_ID_GREEN>,
                  <LED_COLOR_ID_BLUE>;



       This property is **required**.

   * - ``current-limit``
     - ``int``
     - .. code-block:: none

          The current limit for the LED in mA.



       This property is **required**.

       Legal values: ``10``, ``20``, ``30``, ``40``

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

          Index of the LED on a controller. It can be used by drivers or
          applications to map a logical LED to its real position on the
          controller. For example, this allows to handle boards where the
          LEDs in an array/strip are not wired following the LED order of
          the controller.