1* Texas Instruments - LM3692x Highly Efficient White LED Driver 2 3The LM3692x is an ultra-compact, highly efficient, 4white-LED driver designed for LCD display backlighting. 5 6The main difference between the LM36922 and LM36923 is the number of 7LED strings it supports. The LM36922 supports two strings while the LM36923 8supports three strings. 9 10Required properties: 11 - compatible: 12 "ti,lm36922" 13 "ti,lm36923" 14 - reg : I2C slave address 15 - #address-cells : 1 16 - #size-cells : 0 17 18Optional properties: 19 - enable-gpios : gpio pin to enable/disable the device. 20 - vled-supply : LED supply 21 22Required child properties: 23 - reg : 0 - Will enable all LED sync paths 24 1 - Will enable the LED1 sync 25 2 - Will enable the LED2 sync 26 3 - Will enable the LED3 sync (LM36923 only) 27 28Optional child properties: 29 - label : see Documentation/devicetree/bindings/leds/common.txt 30 - linux,default-trigger : 31 see Documentation/devicetree/bindings/leds/common.txt 32 33Example: 34 35led-controller@36 { 36 compatible = "ti,lm3692x"; 37 reg = <0x36>; 38 #address-cells = <1>; 39 #size-cells = <0>; 40 41 enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; 42 vled-supply = <&vbatt>; 43 44 led@0 { 45 reg = <0>; 46 label = "white:backlight_cluster"; 47 linux,default-trigger = "backlight"; 48 }; 49} 50 51For more product information please see the link below: 52http://www.ti.com/lit/ds/snvsa29/snvsa29.pdf 53