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.. dtcompatible:: nxp,sc18im704
.. _dtbinding_nxp_sc18im704:

nxp,sc18im704 (on uart bus)
###########################

Vendor: :ref:`NXP Semiconductors <dt_vendor_nxp>`

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

These nodes are "nxp,sc18im704" bus nodes.

.. code-block:: none

   NXP SC18IM704 UART to I2C/GPIO bridge.

   The SC18IM704 supports both an external I2C and GPIO controller. These
   controllers have to be added to the Device Tree as children. While the
   device itself has to be a child of a UART controller.

   An example configuration:

   &uart0 {
     status = "okay";
     pinctrl-0 = <&uart0_default>;
     pinctrl-names = "default";

     sc18im704: sc18im704 {
       compatible = "nxp,sc18im704";
       status = "okay";
       target-speed = <115200>;
       reset-gpios = <&gpio1 15 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>;

       i2c_ext: sc18im704_i2c {
         compatible = "nxp,sc18im704-i2c";
         status = "okay";
         #address-cells = <1>;
         #size-cells = <0>;
       };

       gpio_ext: sc18im704_gpio {
         compatible = "nxp,sc18im704-gpio";
         status = "okay";
         gpio-controller;
         #gpio-cells = <2>;
         ngpios = <8>;
       };
     };
   };

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

         * - ``reset-gpios``
           - ``phandle-array``
           - .. code-block:: none

                Driver reset pin of the bridge. If connected directly to the MCU, this pin should be configured as active low.


         * - ``target-speed``
           - ``int``
           - .. code-block:: none

                UART baudrate which will be requested and to which UART interface will be reconfigured during initialization phase.


             Legal values: ``1200``, ``2400``, ``4800``, ``9600``, ``14400``, ``19200``, ``28800``, ``38400``, ``57600``, ``76800``, ``115200``, ``230400``, ``460800``



   .. 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 "nxp,sc18im704" compatible.

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

         * - Name
           - Type
           - Details

         * - ``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


             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


         * - ``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.