worldsemi,ws2812-gpio¶

Description¶

Worldsemi WS2812 LED strip, GPIO binding

Driver bindings for bit-banging a WS2812 or compatible LED strip.

The GPIO driver uses inline assembly, and isn't available for all
boards.

Properties¶

Properties not inherited from the base binding file.

Name

Type

Details

in-gpios

phandle-array

GPIO phandle and specifier for the pin connected to the daisy
chain's input pin. Exactly one pin should be given.

This property is required.

chain-length

int

The number of devices in the daisy-chain.

This property is required.

has-white-channel

boolean

If true, the device has a white channel. This is not supported
by the led_strip.h API, so the white data on the wire will be
zero if set.

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 “worldsemi,ws2812-gpio” compatible.

Name	Type	Details
`label`	`string`	Human readable string describing the device (used as device_get_binding() argument) This property is required. See Important properties for more information.
`status`	`string`	indicates the operational status of a device Legal values: `'ok'`, `'okay'`, `'disabled'`, `'reserved'`, `'fail'`, `'fail-sss'` See Important properties for more information.
`compatible`	`string-array`	compatible strings This property is required. See Important properties for more information.
`reg`	`array`	register space See Important properties for more information.
`reg-names`	`string-array`	name of each register space
`interrupts`	`array`	interrupts for device See Important properties for more information.
`interrupts-extended`	`compound`	extended interrupt specifier for device
`interrupt-names`	`string-array`	name of each interrupt
`interrupt-parent`	`phandle`	phandle to interrupt controller node
`clocks`	`phandle-array`	Clock gate information
`clock-names`	`string-array`	name of each clock
`#address-cells`	`int`	number of address cells in reg property
`#size-cells`	`int`	number of size cells in reg property
`dmas`	`phandle-array`	DMA channels specifiers
`dma-names`	`string-array`	Provided names of DMA channel specifiers
`io-channels`	`phandle-array`	IO channels specifiers
`io-channel-names`	`string-array`	Provided names of IO channel specifiers