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