: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:: nxp,dai-sai
.. _dtbinding_nxp_dai_sai:

nxp,dai-sai
###########

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

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



.. code-block:: none

   NXP Synchronous Audio Interface (SAI) node

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

         * - ``mclk-is-output``
           - ``boolean``
           - .. code-block:: none

                Use this property to set the SAI MCLK as output or as input.
                By default, if this property is not specified, MCLK will be
                set as input. Setting the MCLK as output for SAIs which don't
                support MCLK configuration will result in a BUILD_ASSERT()
                failure.



         * - ``rx-fifo-watermark``
           - ``int``
           - .. code-block:: none

                Use this property to specify the watermark value for the TX
                FIFO. This value needs to be in FIFO words (NOT BYTES). This
                value needs to be in the following interval: (0, DEFAULT_FIFO_DEPTH],
                otherwise a BUILD_ASSERT() failure will be raised.



         * - ``tx-fifo-watermark``
           - ``int``
           - .. code-block:: none

                Use this property to specify the watermark value for the RX
                FIFO. This value needs to be in FIFO words (NOT BYTES). This
                value needs to be in the following interval: (0, DEFAULT_FIFO_DEPTH],
                otherwise a BUILD_ASSERT() failure will be raised.



         * - ``fifo-depth``
           - ``int``
           - .. code-block:: none

                Use this property to set the FIFO depth that will be reported
                to other applications calling dai_get_properties(). This value
                should be in the following interval: (0, DEFAULT_FIFO_DEPTH],
                otherwise a BUILD_ASSERT() failure will be raised.
                By DEFAULT_FIFO_DEPTH we mean the actual (hardware) value of
                the FIFO depth. This is needed because some applications (e.g: SOF)
                use this value to compute the DMA burst size, in which case
                DEFAULT_FIFO_DEPTH cannot be used. Generally, reporting a false
                FIFO depth should be avoided. Please note that the sanity check
                for tx/rx-fifo-watermark uses DEFAULT_FIFO_DEPTH instead of this
                value so use with caution. If unsure, it's better to simply not
                use this property, in which case the reported value will be
                DEFAULT_FIFO_DEPTH.



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

                Use this property to specify the index of the DAI. At the
                moment, this is only used by SOF to fetch the "struct device"
                associated with the DAI whose index Linux passes to SOF
                through an IPC. If this property is not specified, the DAI
                index will be considered 0.



         * - ``tx-sync-mode``
           - ``int``
           - .. code-block:: none

                Use this property to specify which synchronization mode to use
                for the transmitter. At the moment, the only supported modes are:
                  1) The transmitter is ASYNC (0)
                  2) The transmitter is in SYNC with the receiver (1)
                If this property is not specified, the transmitter will be set to ASYNC.
                If one side is SYNC then the other MUST be ASYNC. Failing to meet this
                condition will result in a failed BUILD_ASSERT().



             Legal values: ``0``, ``1``

         * - ``rx-sync-mode``
           - ``int``
           - .. code-block:: none

                Use this property to specify which synchronization mode to use
                for the receiver. At the moment, the only supported modes are:
                  1) The receiver is ASYNC (0)
                  2) The receiver is in SYNC with the transmitter (1)
                If this property is not specified, the receiver will be set to ASYNC.
                If one side is SYNC then the other MUST be ASYNC. Failing to meet this
                condition will result in a failed BUILD_ASSERT().



             Legal values: ``0``, ``1``

         * - ``tx-dataline``
           - ``int``
           - .. code-block:: none

                Use this property to specify which transmission data line the SAI should
                use. To find out which transmission line you should use you can:
                  1) Check the TRM and see if your SAI instance is multiline. If not then
                  you're going to use transmission line 0.
                  2) If your SAI is multiline then you need to check the datasheet and see
                  the index of the transmission line that's connected to your consumer
                  (e.g: the codec).
                The indexing of the data line starts at 0. If this property is not specified
                then the index of the transmission data line will be 0.
                Please note that "channel" and "data line" are synnonyms in this context.



         * - ``rx-dataline``
           - ``int``
           - .. code-block:: none

                Use this property to specify which receive transmission data line the SAI should
                use. To find out which receive line you should use you can:
                  1) Check the TRM and see if your SAI instance is multiline. If not then
                  you're going to use receive line 0.
                  2) If your SAI is multiline then you need to check the datasheet and see
                  the index of the receive line that's connected to your consumer (e.g: the codec).
                The indexing of the data line starts at 0. If this property is not specified
                then the index of the receive data line will be 0.
                Please note that "channel" and "data line" are synnonyms in this context.



         * - ``pinctrl-0``
           - ``phandles``
           - .. code-block:: none

                Pin configuration/s for the first state. Content is specific to the
                selected pin controller driver implementation.



         * - ``pinctrl-1``
           - ``phandles``
           - .. code-block:: none

                Pin configuration/s for the second state. See pinctrl-0.



         * - ``pinctrl-2``
           - ``phandles``
           - .. code-block:: none

                Pin configuration/s for the third state. See pinctrl-0.



         * - ``pinctrl-3``
           - ``phandles``
           - .. code-block:: none

                Pin configuration/s for the fourth state. See pinctrl-0.



         * - ``pinctrl-4``
           - ``phandles``
           - .. code-block:: none

                Pin configuration/s for the fifth state. See pinctrl-0.



         * - ``pinctrl-names``
           - ``string-array``
           - .. code-block:: none

                Names for the provided states. The number of names needs to match the
                number of states.





   .. 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,dai-sai" 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:`dt-important-props` for more information.

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

                interrupts for device


             This property is **required**.

             See :ref:`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:`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-names``
           - ``string-array``
           - .. code-block:: none

                name of each register space


         * - ``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


         * - ``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.