Bindings/leds/leds-netxbig.txt

   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 };