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/fairchild,74hc595.yaml), 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   - default-state : see
  29     Documentation/devicetree/bindings/leds/common.txt
  30   - linux,default-trigger : see
  31     Documentation/devicetree/bindings/leds/common.txt
  32
  33 Examples:
  34 Scenario 1 : BCM6358
  35         leds0: led-controller@fffe00d0 {
  36                 compatible = "brcm,bcm6358-leds";
  37                 #address-cells = <1>;
  38                 #size-cells = <0>;
  39                 reg = <0xfffe00d0 0x8>;
  40
  41                 alarm_white {
  42                         reg = <0>;
  43                         active-low;
  44                         label = "white:alarm";
  45                 };
  46                 tv_white {
  47                         reg = <2>;
  48                         active-low;
  49                         label = "white:tv";
  50                 };
  51                 tel_white {
  52                         reg = <3>;
  53                         active-low;
  54                         label = "white:tel";
  55                 };
  56                 adsl_white {
  57                         reg = <4>;
  58                         active-low;
  59                         label = "white:adsl";
  60                 };
  61         };
  62
  63 Scenario 2 : BCM6368
  64         leds0: led-controller@100000d0 {
  65                 compatible = "brcm,bcm6358-leds";
  66                 #address-cells = <1>;
  67                 #size-cells = <0>;
  68                 reg = <0x100000d0 0x8>;
  69                 brcm,pol-low;
  70                 brcm,clk-div = <4>;
  71
  72                 power_red {
  73                         reg = <0>;
  74                         active-low;
  75                         label = "red:power";
  76                 };
  77                 power_green {
  78                         reg = <1>;
  79                         active-low;
  80                         label = "green:power";
  81                         default-state = "on";
  82                 };
  83                 power_blue {
  84                         reg = <2>;
  85                         label = "blue:power";
  86                 };
  87                 broadband_red {
  88                         reg = <3>;
  89                         active-low;
  90                         label = "red:broadband";
  91                 };
  92                 broadband_green {
  93                         reg = <4>;
  94                         label = "green:broadband";
  95                 };
  96                 broadband_blue {
  97                         reg = <5>;
  98                         active-low;
  99                         label = "blue:broadband";
 100                 };
 101                 wireless_red {
 102                         reg = <6>;
 103                         active-low;
 104                         label = "red:wireless";
 105                 };
 106                 wireless_green {
 107                         reg = <7>;
 108                         active-low;
 109                         label = "green:wireless";
 110                 };
 111                 wireless_blue {
 112                         reg = <8>;
 113                         label = "blue:wireless";
 114                 };
 115                 phone_red {
 116                         reg = <9>;
 117                         active-low;
 118                         label = "red:phone";
 119                 };
 120                 phone_green {
 121                         reg = <10>;
 122                         active-low;
 123                         label = "green:phone";
 124                 };
 125                 phone_blue {
 126                         reg = <11>;
 127                         label = "blue:phone";
 128                 };
 129                 upgrading_red {
 130                         reg = <12>;
 131                         active-low;
 132                         label = "red:upgrading";
 133                 };
 134                 upgrading_green {
 135                         reg = <13>;
 136                         active-low;
 137                         label = "green:upgrading";
 138                 };
 139                 upgrading_blue {
 140                         reg = <14>;
 141                         label = "blue:upgrading";
 142                 };
 143         };