:orphan:
.. raw:: html
.. dtcompatible:: led-strip-matrix
.. _dtbinding_led_strip_matrix:
led-strip-matrix
################
Vendor: :ref:`Generic or vendor-independent `
.. note::
An implementation of a driver matching this compatible is available in
:zephyr_file:`drivers/display/display_led_strip_matrix.c`.
Description
***********
.. code-block:: none
Generic LED strip matrix (LED strip arranged in a grid pattern)
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
* - ``circulative``
- ``boolean``
- .. code-block:: none
Use a circulative layout that returns to the left edge of the next row
after reaching the right edge.
If not set, turn around and go left in a serpentine layout when it reaches
the right edge.
* circulative layout
[ 0][ 1][ 2][ 3]
[ 4][ 5][ 6][ 7]
[ 8][ 9][10][11]
[12][13][14][15]
* serpentine layout
[ 0][ 1][ 2][ 3]
[ 7][ 6][ 5][ 4]
[ 8][ 9][10][11]
[15][14][13][12]
* - ``start-from-right``
- ``boolean``
- .. code-block:: none
Specify if the first LED is at the right.
* Start from the right with a serpentine layout
[ 3][ 2][ 1][ 0]
[ 4][ 5][ 6][ 7]
[11][10][ 9][ 8]
[12][13][14][15]
* Start from the right with a circulative layout
[ 3][ 2][ 1][ 0]
[ 7][ 6][ 5][ 4]
[11][10][ 9][ 8]
[15][14][13][12]
* - ``start-from-bottom``
- ``boolean``
- .. code-block:: none
Specify if the first LED is at the bottom.
* Start from the bottom with a circulative layout
[12][13][14][15]
[ 8][ 9][10][11]
[ 4][ 5][ 6][ 7]
[ 0][ 1][ 2][ 3]
* Start from the bottom with a serpentine layout
[15][14][13][12]
[ 8][ 9][10][11]
[ 7][ 6][ 5][ 4]
[ 0][ 1][ 2][ 3]
* - ``width``
- ``int``
- .. code-block:: none
Specifies the overall width of the matrix.
If the matrix consists of multiple modules, it is the sum of their widths.
This property is **required**.
* - ``height``
- ``int``
- .. code-block:: none
Specifies the overall height of the matrix.
If the matrix consists of multiple modules, it is the sum of their heights.
This property is **required**.
* - ``horizontal-modules``
- ``int``
- .. code-block:: none
If the display forms with multiple modules,
specify the horizontal number of modules.
The number must be able to divide the width value.
If not set, it controls a single matrix.
* 8x4 display with 2 serpentine layout modules
[ 0][ 1][ 2][ 3] [16][17][18][19]
[ 7][ 6][ 5][ 4] [23][22][21][20]
[ 8][ 9][10][11] [24][25][26][27]
[15][14][13][12] [31][30][29][28]
Default value: ``1``
* - ``vertical-modules``
- ``int``
- .. code-block:: none
If the display forms with multiple modules,
specify the vertical number of modules.
The number must be able to divide the height value.
If not set, it controls a single matrix.
* 4x8 display with 2 serpentine layout modules
[ 0][ 1][ 2][ 3]
[ 7][ 6][ 5][ 4]
[ 8][ 9][10][11]
[15][14][13][12]
[16][17][18][19]
[23][22][21][20]
[24][25][26][27]
[31][30][29][28]
Default value: ``1``
* - ``modules-circulative``
- ``boolean``
- .. code-block:: none
Specifies that the order of the modules that make up the matrix is circulative.
* circulative module layout
[M0][M1][M2]
[M3][M4][M5]
[M6][M7][M8]
* serpentine module layout
[M0][M1][M2]
[M5][M4][M3]
[M6][M7][M8]
* - ``modules-start-from-right``
- ``boolean``
- .. code-block:: none
Specifies that modules are ordered from right to left.
* Start from the right with a module serpentine layout
[M2][M1][M0]
[M3][M4][M5]
[M8][M7][M6]
* Start from the right with a module circulative layout
[M2][M1][M0]
[M5][M4][M3]
[M8][M7][M6]
* - ``modules-start-from-bottom``
- ``boolean``
- .. code-block:: none
Specifies that modules are ordered from bottom to top.
* Start from the right with a module serpentine layout
[M6][M7][M8]
[M5][M4][M3]
[M0][M1][M2]
* Start from the right with a module circulative layout
[M6][M7][M8]
[M3][M4][M5]
[M0][M1][M2]
* - ``led-strips``
- ``phandles``
- .. code-block:: none
Specify the LED strip that is the substance of the matrix.
If multiple strips are specified, they are "flattened" and sequentialized.
For example, if `strip0` and `strip1` with 128 LEDs are specified,
the first LED of `strip1` will be treated as the 129th LED.
These LEDs are mapped to coordinates according to the layout rule in order.
The amount of LEDs must equal the [width * height] value.
This property is **required**.
* - ``chain-lengths``
- ``array``
- .. code-block:: none
Specify the number of LEDs for each strip.
It can omit the value if all strip nodes have a `chain-length` property.
Each value must be a multiple of the number of LEDs per module
[(width / horizontal-modules) * (height / vertical-modules)].
* - ``pixel-format``
- ``int``
- .. code-block:: none
Initial Pixel format.
See dt-bindings/display/panel.h for a list.
This property only accepts PANEL_PIXEL_FORMAT_RGB_888 and PANEL_PIXEL_FORMAT_RRGB_8888.
If this property is not set, use PANEL_PIXEL_FORMAT_RGB_888 as a default.
Default value: ``1``
.. 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 "led-strip-matrix" 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
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.