xref: /kernel/linux/linux-5.10/Documentation/devicetree/bindings/leds/leds-cr0014114.txt

Crane Merchandising System - cr0014114 LED driver
-------------------------------------------------

This LED Board is widely used in vending machines produced
by Crane Merchandising Systems.

Required properties:
- compatible: "crane,cr0014114"

Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
apply. In particular, "reg" and "spi-max-frequency" properties must be given.

LED sub-node properties:
- function :
	see Documentation/devicetree/bindings/leds/common.txt
- color :
	see Documentation/devicetree/bindings/leds/common.txt
- label :
	see Documentation/devicetree/bindings/leds/common.txt (deprecated)
- linux,default-trigger : (optional)
	see Documentation/devicetree/bindings/leds/common.txt

Example
-------

#include <dt-bindings/leds/common.h>

led-controller@0 {
	compatible = "crane,cr0014114";
	reg = <0>;
	spi-max-frequency = <50000>;
	#address-cells = <1>;
	#size-cells = <0>;

	led@0 {
		reg = <0>;
		function = "coin";
		color = <LED_COLOR_ID_RED>;
	};
	led@1 {
		reg = <1>;
		function = "coin";
		color = <LED_COLOR_ID_GREEN>;
	};
	led@2 {
		reg = <2>;
		function = "coin";
		color = <LED_COLOR_ID_BLUE>;
	};
	led@3 {
		reg = <3>;
		function = "bill";
		color = <LED_COLOR_ID_RED>;
	};
	led@4 {
		reg = <4>;
		function = "bill";
		color = <LED_COLOR_ID_GREEN>;
	};
	led@5 {
		reg = <5>;
		function = "bill";
		color = <LED_COLOR_ID_BLUE>;
	};
	...
};