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.. dtcompatible:: atmel,sam-pmc
.. _dtbinding_atmel_sam_pmc:

atmel,sam-pmc
#############

Vendor: :ref:`Atmel Corporation <dt_vendor_atmel>`

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



.. code-block:: none

   Atmel Power Management Controller (PMC)

   The Power Management Controller (PMC) optimizes power consumption by
   controlling all system and user peripheral clocks. The PMC enables/disables
   the clock inputs to many of the peripherals and the processor.

   To specify the clocks in a peripheral, the standard clocks property needs
   to be used, e.g.:

     uart: uart@xxx {
       ...
       clocks = <&pmc PMC_TYPE_PERIPHERAL p-id>;
       ...
     };

   In this example the clock-type was defined as PMC_TYPE_PERIPHERAL and the
   peripheral-id was defined as p-id. The p-id number should be consulted on
   datasheet, usually it is available at Product Mapping figure.

   NOTE: The predefined clock type cell is defined at
   include/zephyr/drivers/clock_clontrol/atmel_sam_pmc.h header file.

   The clock-type constants are:
     PMC_TYPE_CORE
     PMC_TYPE_SYSTEM
     PMC_TYPE_PERIPHERAL
     PMC_TYPE_GCK
     PMC_TYPE_PROGRAMMABLE

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

         * - ``#clock-cells``
           - ``int``
           - .. code-block:: none

                from common clock binding; shall be set to 2. The first entry is the type
                of the clock (core, system, peripheral or generated) and the second entry
                it's the peripheral identification index as provided by the datasheet.



             This property is **required**.

             Constant value: ``2``



   .. 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 "atmel,sam-pmc" 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


         * - ``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.






Specifier cell names
********************

- clock cells: clock-type, peripheral-id