tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1LEDs connected to tca6507
2
3Required properties:
4- compatible : should be : "ti,tca6507".
5- #address-cells: must be 1
6- #size-cells: must be 0
7- reg: typically 0x45.
8
9Optional properties:
10- gpio-controller: allows lines to be used as output-only GPIOs.
11- #gpio-cells: if present, must not be 0.
12
13Each led is represented as a sub-node of the ti,tca6507 device.
14
15LED sub-node properties:
16- label : (optional) see Documentation/devicetree/bindings/leds/common.txt
17- reg : number of LED line (could be from 0 to 6)
18- linux,default-trigger : (optional)
19 see Documentation/devicetree/bindings/leds/common.txt
20- compatible: either "led" (the default) or "gpio".
21
22Examples:
23
24tca6507@45 {
25 compatible = "ti,tca6507";
26 #address-cells = <1>;
27 #size-cells = <0>;
28 reg = <0x45>;
29
30 gpio-controller;
31 #gpio-cells = <2>;
32
33 led0: red-aux@0 {
34 label = "red:aux";
35 reg = <0x0>;
36 };
37
38 led1: green-aux@1 {
39 label = "green:aux";
40 reg = <0x5>;
41 linux,default-trigger = "default-on";
42 };
43
44 wifi-reset@6 {
45 reg = <0x6>;
46 compatible = "gpio";
47 };
48};
49