leds-netxbig.txt

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    1 Binding for the CPLD LEDs (GPIO extension bus) found on some LaCie/Seagate
    2 boards (Example: 2Big/5Big Network v2, 2Big NAS).
    3 
    4 Required properties:
    5 - compatible: "lacie,netxbig-leds".
    6 - gpio-ext: Phandle for the gpio-ext bus.
    7 
    8 Optional properties:
    9 - timers: Timer array. Each timer entry is represented by three integers:
   10   Mode (gpio-ext bus), delay_on and delay_off.
   11 
   12 Each LED is represented as a sub-node of the netxbig-leds device.
   13 
   14 Required sub-node properties:
   15 - mode-addr: Mode register address on gpio-ext bus.
   16 - mode-val: Mode to value mapping. Each entry is represented by two integers:
   17   A mode and the corresponding value on the gpio-ext bus.
   18 - bright-addr: Brightness register address on gpio-ext bus.
   19 - max-brightness: Maximum brightness value.
   20 
   21 Optional sub-node properties:
   22 - label: Name for this LED. If omitted, the label is taken from the node name.
   23 - linux,default-trigger: Trigger assigned to the LED.
   24 
   25 Example:
   26 
   27 netxbig-leds {
   28         compatible = "lacie,netxbig-leds";
   29 
   30         gpio-ext = &gpio_ext;
   31 
   32         timers = <NETXBIG_LED_TIMER1 500 500
   33                   NETXBIG_LED_TIMER2 500 1000>;
   34 
   35         blue-power {
   36                 label = "netxbig:blue:power";
   37                 mode-addr = <0>;
   38                 mode-val = <NETXBIG_LED_OFF 0
   39                             NETXBIG_LED_ON 1
   40                             NETXBIG_LED_TIMER1 3
   41                             NETXBIG_LED_TIMER2 7>;
   42                 bright-addr = <1>;
   43                 max-brightness = <7>;
   44         };
   45         red-power {
   46                 label = "netxbig:red:power";
   47                 mode-addr = <0>;
   48                 mode-val = <NETXBIG_LED_OFF 0
   49                             NETXBIG_LED_ON 2
   50                             NETXBIG_LED_TIMER1 4>;
   51                 bright-addr = <1>;
   52                 max-brightness = <7>;
   53         };
   54         blue-sata0 {
   55                 label = "netxbig:blue:sata0";
   56                 mode-addr = <3>;
   57                 mode-val = <NETXBIG_LED_OFF 0
   58                             NETXBIG_LED_ON 7
   59                             NETXBIG_LED_SATA 1
   60                             NETXBIG_LED_TIMER1 3>;
   61                 bright-addr = <2>;
   62                 max-brightness = <7>;
   63         };
   64         red-sata0 {
   65                 label = "netxbig:red:sata0";
   66                 mode-addr = <3>;
   67                 mode-val = <NETXBIG_LED_OFF 0
   68                             NETXBIG_LED_ON 2
   69                             NETXBIG_LED_TIMER1 4>;
   70                 bright-addr = <2>;
   71                 max-brightness = <7>;
   72         };
   73         blue-sata1 {
   74                 label = "netxbig:blue:sata1";
   75                 mode-addr = <4>;
   76                 mode-val = <NETXBIG_LED_OFF 0
   77                             NETXBIG_LED_ON 7
   78                             NETXBIG_LED_SATA 1
   79                             NETXBIG_LED_TIMER1 3>;
   80                 bright-addr = <2>;
   81                 max-brightness = <7>;
   82         };
   83         red-sata1 {
   84                 label = "netxbig:red:sata1";
   85                 mode-addr = <4>;
   86                 mode-val = <NETXBIG_LED_OFF 0
   87                             NETXBIG_LED_ON 2
   88                             NETXBIG_LED_TIMER1 4>;
   89                 bright-addr = <2>;
   90                 max-brightness = <7>;
   91         };
   92 };

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sys/contrib/device-tree/Bindings/leds/leds-netxbig.txt