1LEDs connected to Broadcom BCM6358 controller 2 3This controller is present on BCM6358 and BCM6368. 4In these SoCs there are Serial LEDs (LEDs connected to a 74x164 controller), 5which can either be controlled by software (exporting the 74x164 as spi-gpio. 6See Documentation/devicetree/bindings/gpio/gpio-74x164.txt), or 7by hardware using this driver. 8 9Required 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 15Optional 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 21Each LED is represented as a sub-node of the brcm,bcm6358-leds device. 22 23LED sub-node required properties: 24 - reg : LED pin number (only LEDs 0 to 31 are valid). 25 26LED 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/common.txt 32 - linux,default-trigger : see 33 Documentation/devicetree/bindings/leds/common.txt 34 35Examples: 36Scenario 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 65Scenario 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 }; 146