led-strip-matrix
Vendor: Generic or vendor-independent
Note
An implementation of a driver matching this compatible is available in drivers/display/display_led_strip_matrix.c.
Description
Generic LED strip matrix (LED strip arranged in a grid pattern)
Properties
Node specific properties
Properties not inherited from the base binding file.
Name |
Type |
Details |
|---|---|---|
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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]
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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]
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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]
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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. |
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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. |
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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: |
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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: |
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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]
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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]
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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]
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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. |
|
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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)].
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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: |
Deprecated node specific properties
Deprecated properties not inherited from the base binding file.
(None)
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.
Name |
Type |
Details |
|---|---|---|
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indicates the operational status of a device
Legal values: See Important properties for more information. |
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compatible strings
This property is required. See Important properties for more information. |
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register space
See Important properties for more information. |
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name of each register space
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interrupts for device
See Important properties for more information. |
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extended interrupt specifier for device
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name of each interrupt
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phandle to interrupt controller node
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Human readable string describing the device (used as device_get_binding() argument)
See Important properties for more information. This property is deprecated. |
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Clock gate information
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name of each clock
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number of address cells in reg property
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number of size cells in reg property
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DMA channels specifiers
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Provided names of DMA channel specifiers
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IO channels specifiers
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Provided names of IO channel specifiers
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mailbox / IPM channels specifiers
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Provided names of mailbox / IPM channel specifiers
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Power domain specifiers
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Provided names of power domain specifiers
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Number of cells in power-domains property
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Do not initialize device automatically on boot. Device should be manually
initialized using device_init().
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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.
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Automatically configure the device for runtime power management after the
init function runs.
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List of power states that will disable this device power.
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