ST LIS2DU12 SPI 초저전력 3축 Accelerometer 바인딩

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.. _dtbinding_st_lis2du12_spi:

st,lis2du12 (on spi bus)
########################

Vendor: :ref:`STMicroelectronics <dt_vendor_st>`

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



.. code-block:: none

   STMicroelectronics LIS2DU12 3-axis ultra-low power accelerometer sensor
   accessed through SPI bus

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

         * - ``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.



         * - ``spi-max-frequency``
           - ``int``
           - .. code-block:: none

                Maximum clock frequency of device's SPI interface in Hz


             This property is **required**.

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

                Duplex mode, full or half. By default it's always full duplex thus 0
                as this is, by far, the most common mode.
                Use the macros not the actual enum value, here is the concordance
                list (see dt-bindings/spi/spi.h)
                  0    SPI_FULL_DUPLEX
                  2048 SPI_HALF_DUPLEX



             Legal values: ``0``, ``2048``

         * - ``frame-format``
           - ``int``
           - .. code-block:: none

                Motorola or TI frame format. By default it's always Motorola's,
                thus 0 as this is, by far, the most common format.
                Use the macros not the actual enum value, here is the concordance
                list (see dt-bindings/spi/spi.h)
                  0     SPI_FRAME_FORMAT_MOTOROLA
                  32768 SPI_FRAME_FORMAT_TI



             Legal values: ``0``, ``32768``

         * - ``spi-cpol``
           - ``boolean``
           - .. code-block:: none

                SPI clock polarity which indicates the clock idle state.
                If it is used, the clock idle state is logic high; otherwise, low.



         * - ``spi-cpha``
           - ``boolean``
           - .. code-block:: none

                SPI clock phase that indicates on which edge data is sampled.
                If it is used, data is sampled on the second edge; otherwise, on the first edge.



         * - ``spi-hold-cs``
           - ``boolean``
           - .. code-block:: none

                In some cases, it is necessary for the master to manage SPI chip select
                under software control, so that multiple spi transactions can be performed
                without releasing it. A typical use case is variable length SPI packets
                where the first spi transaction reads the length and the second spi transaction
                reads length bytes.



         * - ``friendly-name``
           - ``string``
           - .. code-block:: none

                Human readable string describing the sensor. It can be used to
                distinguish multiple instances of the same model (e.g., lid accelerometer
                vs. base accelerometer in a laptop) to a host operating system.

                This property is defined in the Generic Sensor Property Usages of the HID
                Usage Tables specification
                (https://usb.org/sites/default/files/hut1_3_0.pdf, section 22.5).



         * - ``int1-gpios``
           - ``phandle-array``
           - .. code-block:: none

                INT1 pin

                This pin defaults to active high when produced by the sensor.
                The property value should ensure the flags properly describe
                the signal that is presented to the driver.



         * - ``int2-gpios``
           - ``phandle-array``
           - .. code-block:: none

                INT2 pin

                This pin defaults to active high when produced by the sensor.
                The property value should ensure the flags properly describe
                the signal that is presented to the driver.



         * - ``drdy-pin``
           - ``int``
           - .. code-block:: none

                Select DRDY pin number (1 or 2).

                1 = drdy is generated from INT1
                2 = drdy is generated from INT2

                This number represents which of the two interrupt pins
                (INT1 or INT2) the drdy line is attached to. This property is not
                mandatory and if not present it defaults to 1 which is the
                configuration at power-up.



             Default value: ``1``

             Legal values: ``1``, ``2``

         * - ``accel-range``
           - ``int``
           - .. code-block:: none

                Range in g. Default is power-up configuration.

                0 # LIS2DU12_DT_FS_2G  (0.061 mg/LSB)
                1 # LIS2DU12_DT_FS_4G  (0.122 mg/LSB)
                2 # LIS2DU12_DT_FS_8G  (0.244 mg/LSB)
                3 # LIS2DU12_DT_FS_16G (0.488 mg/LSB)



             Legal values: ``0``, ``1``, ``2``, ``3``

         * - ``accel-odr``
           - ``int``
           - .. code-block:: none

                Specify the default accelerometer output data rate expressed in samples per second (Hz).
                The values are taken in accordance to lis2du12_md_t enumerative in hal/st
                module. Please note that this values will also enable/disable High performance mode.
                Default is power-up configuration.

                0x00 # LIS2DU12_DT_ODR_OFF
                0x01 # LIS2DU12_DT_ODR_AT_1Hz6_ULP
                0x02 # LIS2DU12_DT_ODR_AT_3Hz_ULP
                0x03 # LIS2DU12_DT_ODR_AT_6Hz_ULP
                0x04 # LIS2DU12_DT_ODR_AT_6Hz
                0x05 # LIS2DU12_DT_ODR_AT_12Hz
                0x06 # LIS2DU12_DT_ODR_AT_25Hz
                0x07 # LIS2DU12_DT_ODR_AT_50Hz
                0x08 # LIS2DU12_DT_ODR_AT_100Hz
                0x09 # LIS2DU12_DT_ODR_AT_200Hz
                0x0a # LIS2DU12_DT_ODR_AT_400Hz
                0x0b # LIS2DU12_DT_ODR_AT_800Hz
                0x0e # LIS2DU12_DT_ODR_TRIG_PIN
                0x0f # LIS2DU12_DT_ODR_TRIG_SW



             Legal values: ``0``, ``1``, ``2``, ``3``, ``4``, ``5``, ``6``, ``7``, ``8``, ``9``, ``10``, ``11``, ``14``, ``15``

         * - ``drdy-pulsed``
           - ``boolean``
           - .. code-block:: none

                Selects the pulsed mode for data-ready interrupt when enabled,
                and the latched mode when disabled.





   .. 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 "st,lis2du12" 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().