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.. dtcompatible:: maxim,ds2485
.. _dtbinding_maxim_ds2485:

maxim,ds2485 (on i2c bus)
#########################

Vendor: :ref:`Maxim Integrated Products <dt_vendor_maxim>`

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

These nodes are "w1" bus nodes.

.. code-block:: none

   This is a representation of the Maxim DS2485 I2C 1-Wire master w/ memory

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

         * - ``switching-threshold``
           - ``string``
           - .. code-block:: none

                Default Low-to-High Switching Threshold.

                Only the following values are allowed:
                  low:     0.25 x VCC, no hysteresis
                  medium:  0.40 x VCC, no hysteresis (recommended for most configurations)
                  high:    0.75 x VCC, with hysteresis
                  off:     off (chip reset value)



             This property is **required**.

             Legal values: ``'low'``, ``'medium'``, ``'high'``, ``'off'``

         * - ``active-pull-threshold``
           - ``string``
           - .. code-block:: none

                Default Active Pullup on Threshold configuration.
                For configurations with a single slave a "low" active pull
                threshold is recommended.

                Only the following values are allowed:
                  low:     0.25 x VCC (recommended for most configurations)
                  medium:  0.40 x VCC
                  high:    0.75 x VCC
                  off:     off (chip reset value)



             This property is **required**.

             Legal values: ``'low'``, ``'medium'``, ``'high'``, ``'off'``

         * - ``weak-pullup``
           - ``string``
           - .. code-block:: none

                Default 1-Wire Weak Pullup Resistance in ohms.
                For most configurations with a single slave "1000" ohms are recommended,
                but some devices and multidrop configurations might need a stronger pullup.

                To enter floating condition, it is suggested to switch the weak-pull up
                to extern and disable the switching as well as the active-pull threshold.

                Only the following values are allowed:
                  "extern" (chip reset value)
                  "500"
                  "1000" (recommended for most configurations)
                  "333"



             This property is **required**.

             Legal values: ``'extern'``, ``'500'``, ``'1000'``, ``'333'``

         * - ``standard-slew``
           - ``int``
           - .. code-block:: none

                Default slew for standard speed mode in ns. Only the following values are
                allowed:
                  50
                  150   (default; chip reset value)
                  1300



             Default value: ``150``

             Legal values: ``50``, ``150``, ``1300``

         * - ``overdrive-slew``
           - ``int``
           - .. code-block:: none

                Default slew for overdrive speed mode in ns. Only the following values are
                allowed:
                  50    (default; chip reset value)
                  150



             Default value: ``50``

             Legal values: ``50``, ``150``

         * - ``active-pullup``
           - ``boolean``
           - .. code-block:: none

                Enable the active pullup for the 1-Wire bus.



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

                GPIO specifier that controls power to the device.

                This property should be provided when the device has a dedicated
                switch that controls power to the device.  The supply state is
                entirely the responsibility of the device driver.

                Contrast with vin-supply.



         * - ``vin-supply``
           - ``phandle``
           - .. code-block:: none

                Reference to the regulator that controls power to the device.
                The referenced devicetree node must have a regulator compatible.

                This property should be provided when device power is supplied
                by a shared regulator.  The supply state is dependent on the
                request status of all devices fed by the regulator.

                Contrast with supply-gpios.  If both properties are provided
                then the regulator must be requested before the supply GPIOS is
                set to an active state, and the supply GPIOS must be set to an
                inactive state before releasing the regulator.





   .. 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 "maxim,ds2485" 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


             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.