Documentation/devicetree/bindings/leds/leds-bcm6358.txt

   1 LEDs connected to Broadcom BCM6358 controller
   2
   3 This controller is present on BCM6358 and BCM6368.
   4 In these SoCs there are Serial LEDs (LEDs connected to a 74x164 controller),
   5 which can either be controlled by software (exporting the 74x164 as spi-gpio.
   6 See Documentation/devicetree/bindings/gpio/gpio-74x164.txt), or
   7 by hardware using this driver.
   8
   9 Required properties:
  10   - compatible : should be "brcm,bcm6358-leds".
  11   - #address-cells : must be 1.
  12   - #size-cells : must be 0.
  13   - reg : BCM6358 LED controller address and size.
  14
  15 Optional properties:
  16   - brcm,clk-div : SCK signal divider. Possible values are 1, 2, 4 and 8.
  17     Default : 1
  18   - brcm,clk-dat-low : Boolean, makes clock and data signals active low.
  19     Default : false
  20
  21 Each LED is represented as a sub-node of the brcm,bcm6358-leds device.
  22
  23 LED sub-node required properties:
  24   - reg : LED pin number (only LEDs 0 to 31 are valid).
  25
  26 LED sub-node optional properties:
  27   - label : see Documentation/devicetree/bindings/leds/common.txt
  28   - active-low : Boolean, makes LED active low.
  29     Default : false
  30   - default-state : see
  31     Documentation/devicetree/bindings/leds/leds-gpio.txt
  32   - linux,default-trigger : see
  33     Documentation/devicetree/bindings/leds/common.txt
  34
  35 Examples:
  36 Scenario 1 : BCM6358
  37         leds0: led-controller@fffe00d0 {
  38                 compatible = "brcm,bcm6358-leds";
  39                 #address-cells = <1>;
  40                 #size-cells = <0>;
  41                 reg = <0xfffe00d0 0x8>;
  42
  43                 alarm_white {
  44                         reg = <0>;
  45                         active-low;
  46                         label = "white:alarm";
  47                 };
  48                 tv_white {
  49                         reg = <2>;
  50                         active-low;
  51                         label = "white:tv";
  52                 };
  53                 tel_white {
  54                         reg = <3>;
  55                         active-low;
  56                         label = "white:tel";
  57                 };
  58                 adsl_white {
  59                         reg = <4>;
  60                         active-low;
  61                         label = "white:adsl";
  62                 };
  63         };
  64
  65 Scenario 2 : BCM6368
  66         leds0: led-controller@100000d0 {
  67                 compatible = "brcm,bcm6358-leds";
  68                 #address-cells = <1>;
  69                 #size-cells = <0>;
  70                 reg = <0x100000d0 0x8>;
  71                 brcm,pol-low;
  72                 brcm,clk-div = <4>;
  73
  74                 power_red {
  75                         reg = <0>;
  76                         active-low;
  77                         label = "red:power";
  78                 };
  79                 power_green {
  80                         reg = <1>;
  81                         active-low;
  82                         label = "green:power";
  83                         default-state = "on";
  84                 };
  85                 power_blue {
  86                         reg = <2>;
  87                         label = "blue:power";
  88                 };
  89                 broadband_red {
  90                         reg = <3>;
  91                         active-low;
  92                         label = "red:broadband";
  93                 };
  94                 broadband_green {
  95                         reg = <4>;
  96                         label = "green:broadband";
  97                 };
  98                 broadband_blue {
  99                         reg = <5>;
 100                         active-low;
 101                         label = "blue:broadband";
 102                 };
 103                 wireless_red {
 104                         reg = <6>;
 105                         active-low;
 106                         label = "red:wireless";
 107                 };
 108                 wireless_green {
 109                         reg = <7>;
 110                         active-low;
 111                         label = "green:wireless";
 112                 };
 113                 wireless_blue {
 114                         reg = <8>;
 115                         label = "blue:wireless";
 116                 };
 117                 phone_red {
 118                         reg = <9>;
 119                         active-low;
 120                         label = "red:phone";
 121                 };
 122                 phone_green {
 123                         reg = <10>;
 124                         active-low;
 125                         label = "green:phone";
 126                 };
 127                 phone_blue {
 128                         reg = <11>;
 129                         label = "blue:phone";
 130                 };
 131                 upgrading_red {
 132                         reg = <12>;
 133                         active-low;
 134                         label = "red:upgrading";
 135                 };
 136                 upgrading_green {
 137                         reg = <13>;
 138                         active-low;
 139                         label = "green:upgrading";
 140                 };
 141                 upgrading_blue {
 142                         reg = <14>;
 143                         label = "blue:upgrading";
 144                 };
 145         };