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