| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | Crane Merchandising System - cr0014114 LED driver |
| 2 | ------------------------------------------------- |
| 3 | |
| 4 | This LED Board is widely used in vending machines produced |
| 5 | by Crane Merchandising Systems. |
| 6 | |
| 7 | Required properties: |
| 8 | - compatible: "crane,cr0014114" |
| 9 | |
| 10 | Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt |
| 11 | apply. In particular, "reg" and "spi-max-frequency" properties must be given. |
| 12 | |
| 13 | LED sub-node properties: |
| 14 | - function : |
| 15 | see Documentation/devicetree/bindings/leds/common.txt |
| 16 | - color : |
| 17 | see Documentation/devicetree/bindings/leds/common.txt |
| 18 | - label : |
| 19 | see Documentation/devicetree/bindings/leds/common.txt (deprecated) |
| 20 | - linux,default-trigger : (optional) |
| 21 | see Documentation/devicetree/bindings/leds/common.txt |
| 22 | |
| 23 | Example |
| 24 | ------- |
| 25 | |
| 26 | #include <dt-bindings/leds/common.h> |
| 27 | |
| 28 | led-controller@0 { |
| 29 | compatible = "crane,cr0014114"; |
| 30 | reg = <0>; |
| 31 | spi-max-frequency = <50000>; |
| 32 | #address-cells = <1>; |
| 33 | #size-cells = <0>; |
| 34 | |
| 35 | led@0 { |
| 36 | reg = <0>; |
| 37 | function = "coin"; |
| 38 | color = <LED_COLOR_ID_RED>; |
| 39 | }; |
| 40 | led@1 { |
| 41 | reg = <1>; |
| 42 | function = "coin"; |
| 43 | color = <LED_COLOR_ID_GREEN>; |
| 44 | }; |
| 45 | led@2 { |
| 46 | reg = <2>; |
| 47 | function = "coin"; |
| 48 | color = <LED_COLOR_ID_BLUE>; |
| 49 | }; |
| 50 | led@3 { |
| 51 | reg = <3>; |
| 52 | function = "bill"; |
| 53 | color = <LED_COLOR_ID_RED>; |
| 54 | }; |
| 55 | led@4 { |
| 56 | reg = <4>; |
| 57 | function = "bill"; |
| 58 | color = <LED_COLOR_ID_GREEN>; |
| 59 | }; |
| 60 | led@5 { |
| 61 | reg = <5>; |
| 62 | function = "bill"; |
| 63 | color = <LED_COLOR_ID_BLUE>; |
| 64 | }; |
| 65 | ... |
| 66 | }; |