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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/leds/leds-el15203000.txt | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/leds/leds-el15203000.txt')
-rw-r--r-- | Documentation/devicetree/bindings/leds/leds-el15203000.txt | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/leds/leds-el15203000.txt b/Documentation/devicetree/bindings/leds/leds-el15203000.txt new file mode 100644 index 000000000..182f0035e --- /dev/null +++ b/Documentation/devicetree/bindings/leds/leds-el15203000.txt @@ -0,0 +1,69 @@ +Crane Merchandising System - EL15203000 LED driver +-------------------------------------------------- + +This LED Board (aka RED LEDs board) is widely used in +coffee vending machines produced by Crane Merchandising Systems. +The board manages 3 LEDs and supports predefined blinking patterns +for specific leds. + +Vending area LED encoded with symbol 'V' (hex code 0x56). +Doesn't have any hardware blinking pattern. + +Screen light tube LED which surrounds vending machine screen and +encoded with symbol 'S' (hex code 0x53). Supports blinking breathing pattern. + +Water Pipe LED encoded with symbol 'P' (hex code 0x50) and +actually consists of 5 LEDs that exposed by protocol like one LED. +Supports next patterns: +- cascade pattern +- inversed cascade pattern +- bounce pattern +- inversed bounce pattern + +Required properties: +- compatible : "crane,el15203000" +- #address-cells : must be 1 +- #size-cells : must be 0 + +Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt +apply. In particular, "reg" and "spi-max-frequency" properties must be given. + +Optional LED sub-node properties: +- function: + see Documentation/devicetree/bindings/leds/common.txt +- color: + see Documentation/devicetree/bindings/leds/common.txt + +Example +------- + +#include <dt-bindings/leds/common.h> + +led-controller@0 { + compatible = "crane,el15203000"; + reg = <0>; + spi-max-frequency = <50000>; + #address-cells = <1>; + #size-cells = <0>; + + /* water pipe */ + led@50 { + reg = <0x50>; + function = "pipe"; + color = <LED_COLOR_ID_RED>; + }; + + /* screen frame */ + led@53 { + reg = <0x53>; + function = "screen"; + color = <LED_COLOR_ID_RED>; + }; + + /* vending area */ + led@56 { + reg = <0x56>; + function = "vend"; + color = <LED_COLOR_ID_RED>; + }; +}; |