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.. dtcompatible:: ene,kb1200-pinctrl
.. _dtbinding_ene_kb1200_pinctrl:

ene,kb1200-pinctrl
##################

Vendor: :ref:`ENE Technology, Inc. <dt_vendor_ene>`

.. note::

   An implementation of a driver matching this compatible is available in
   :zephyr_file:`drivers/pinctrl/pinctrl_ene_kb1200.c`.

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



.. code-block:: none

   The ENE KB1200 pin controller is a singleton node responsible for controlling
   pin function selection and pin properties. For example, you can use these
   nodes to select peripheral pin functions.

   Here is a list of supported standard pin properties:
     - bias-disable: Disable pull-up/down resistor.
     - bias-pull-up: Enable pull-up resistor.
     - bias-pull-down: Enable pull-down resistor.
     - drive-push-pull: Output driver is push-pull.
     - drive-open-drain: Output driver is open-drain.
     - output-disable: Disable GPIO output driver data
     - output-enable: Ensable GPIO output driver data
     - output-high: GPIO output data high
     - output-low: GPIO output data low
     - low-power-enable: Support input data ViH/ViL with low vlotage range(ex. 1.8V domain)

   Here is a list of support pinmux type:
     - PINMUX_FUNC_A : GPIO        Function
     - PINMUX_FUNC_B : AltOutput 1 Function
     - PINMUX_FUNC_C : AltOutput 2 Function
     - PINMUX_FUNC_D : AltOutput 3 Function
     - PINMUX_FUNC_E : AltOutput 4 Function
     (Note. Alt-input function does not need to set pinmux type other than PINMUX_FUNC_A)

   An example for KB1200, include the chip level pinctrl DTSI file in the
   board level DTS:

     #include <ene_kb1200/ene_kb1200-pinctrl.dtsi>

   We want to use the I2C0_0 port of the KB1200 controller and enable the
   internal 3.3V pull-up if its i2c frequency won't exceed 400kHz. And we
   need to set I2C0_0 pinmux type as PINMUX_FUNC_B (the alt-output 1
   function) not a GPIO.

   To change a pin's pinctrl default properties, add a reference to the
   pin in the board's DTS file and set the properties as below:

     &i2c0_0 {
       pinctrl-0 = <&i2c0_clk_gpio2c &i2c0_dat_gpio2d>;
       pinctrl-names = "default";
     }

     /omit-if-no-ref/ i2c0_clk_gpio2c: i2c0_clk_gpio2c {
       pinmux = <ENE_KB1200_PINMUX(0x2C, PINMUX_FUNC_B)>;
       bias-pull-up;
     };
     /omit-if-no-ref/ i2c0_dat_gpio2d: i2c0_dat_gpio2d {
       pinmux = <ENE_KB1200_PINMUX(0x2D, PINMUX_FUNC_B)>;
       bias-pull-up;
     };

Properties
**********

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


These property descriptions apply to "ene,kb1200-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 "ene,kb1200-pinctrl" compatible.

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

         * - Name
           - Type
           - Details

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

                register space


             This property is **required**.

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

         * - ``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-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


         * - ``power-domains``
           - ``phandle-array``
           - .. code-block:: none

                Power domain specifiers


         * - ``power-domain-names``
           - ``string-array``
           - .. code-block:: none

                Provided names of power domain specifiers


         * - ``#power-domain-cells``
           - ``int``
           - .. code-block:: none

                Number of cells in power-domains property


         * - ``zephyr,deferred-init``
           - ``boolean``
           - .. code-block:: none

                Do not initialize device automatically on boot. Device should be manually
                initialized using device_init().



         * - ``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.



         * - ``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.






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

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

   * - Name
     - Type
     - Details

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

          Pinmux selection


       This property is **required**.

   * - ``bias-disable``
     - ``boolean``
     - .. code-block:: none

          disable any pin bias


   * - ``bias-pull-up``
     - ``boolean``
     - .. code-block:: none

          enable pull-up resistor


   * - ``bias-pull-down``
     - ``boolean``
     - .. code-block:: none

          enable pull-down resistor


   * - ``drive-push-pull``
     - ``boolean``
     - .. code-block:: none

          drive actively high and low


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

          drive with open drain (hardware AND)


   * - ``low-power-enable``
     - ``boolean``
     - .. code-block:: none

          enable low power mode


   * - ``output-disable``
     - ``boolean``
     - .. code-block:: none

          disable output on a pin (e.g. disable an output buffer)


   * - ``output-enable``
     - ``boolean``
     - .. code-block:: none

          enable output on a pin without actively driving it (e.g. enable an output
          buffer)



   * - ``output-low``
     - ``boolean``
     - .. code-block:: none

          set the pin to output mode with low level


   * - ``output-high``
     - ``boolean``
     - .. code-block:: none

          set the pin to output mode with high level