Nuvoton NuMaker Pin Controller 바인딩

:orphan:

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.. dtcompatible:: nuvoton,numaker-pinctrl
.. _dtbinding_nuvoton_numaker_pinctrl:

nuvoton,numaker-pinctrl
#######################

Vendor: :ref:`Nuvoton Technology Corporation <dt_vendor_nuvoton>`

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



.. code-block:: none

   Pin controller is responsible for controlling pin function
   selection and pin properties. For example, for example you can
   use this node to set UART0 RX as pin PB12 to fulfill SYS_GPB_MFP3_PB12MFP_UART0_RXD.

   The node has the 'pinctrl' node label set in your SoC's devicetree,
   so you can modify it like this:

     &pinctrl {
             /* your modifications go here */
     };

   All device pin configurations should be placed in child nodes of the
   'pinctrl' node, as shown in this example:

     &pinctrl {
       /* configuration for the uart0 "default" state */
       uart0_default: uart0_default {
           /* configure PB13 as UART0 TX and PB12 as UART0 RX */
         group0 {
           pinmux = <PB12MFP_UART0_RXD>, <PB13MFP_UART0_TXD>;
         };
       };
     };


   To link pin configurations with a device, use a pinctrl-N property for some
   number N, like this example you could place in your board's DTS file:

     #include "board-pinctrl.dtsi"

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

Properties
**********

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


These property descriptions apply to "nuvoton,numaker-pinctrl"
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.

      (None)

   .. 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 "nuvoton,numaker-pinctrl" 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().






Grandchild node properties
==========================

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

   * - Name
     - Type
     - Details

   * - ``drive-open-drain``
     - ``boolean``
     - .. code-block:: none

          drive with open drain (hardware AND)


   * - ``input-schmitt-enable``
     - ``boolean``
     - .. code-block:: none

          enable schmitt-trigger mode


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

          An array of pins sharing the same group properties. The pins should
          be defined using pre-defined macros or, alternatively, using NVT_PINMUX
          macros depending on the pinmux model used by the SoC series.



       This property is **required**.

   * - ``drive-strength``
     - ``string``
     - .. code-block:: none

          Set the driving strength of a pin. Hardware default configuration is low and
          it's enough to drive most components, like as LED, CAN transceiver and so on.



       Default value: ``low``

       Legal values: ``'low'``, ``'fast'``

   * - ``slew-rate``
     - ``string``
     - .. code-block:: none

          Set the speed of a pin. This setting effectively limits the
          slew rate of the output signal. Hardware default configuration is low.
          Fast slew rate could support fast speed pins, like as SPI CLK up to 50MHz.



       Default value: ``low``

       Legal values: ``'low'``, ``'high'``, ``'fast'``

   * - ``digital-path-disable``
     - ``boolean``
     - .. code-block:: none

          disable digital path on a pin.