11d9aa24bSDan Murphy* Texas Instruments - LM3692x Highly Efficient White LED Driver 21d9aa24bSDan Murphy 31d9aa24bSDan MurphyThe LM3692x is an ultra-compact, highly efficient, 41d9aa24bSDan Murphywhite-LED driver designed for LCD display backlighting. 51d9aa24bSDan Murphy 61d9aa24bSDan MurphyThe main difference between the LM36922 and LM36923 is the number of 71d9aa24bSDan MurphyLED strings it supports. The LM36922 supports two strings while the LM36923 81d9aa24bSDan Murphysupports three strings. 91d9aa24bSDan Murphy 101d9aa24bSDan MurphyRequired properties: 111d9aa24bSDan Murphy - compatible: 121d9aa24bSDan Murphy "ti,lm36922" 131d9aa24bSDan Murphy "ti,lm36923" 141d9aa24bSDan Murphy - reg : I2C slave address 151d9aa24bSDan Murphy - #address-cells : 1 161d9aa24bSDan Murphy - #size-cells : 0 171d9aa24bSDan Murphy 181d9aa24bSDan MurphyOptional properties: 191d9aa24bSDan Murphy - enable-gpios : gpio pin to enable/disable the device. 201d9aa24bSDan Murphy - vled-supply : LED supply 211d9aa24bSDan Murphy 221d9aa24bSDan MurphyRequired child properties: 23581e3ca3SDan Murphy - reg : 0 - Will enable all LED sync paths 24581e3ca3SDan Murphy 1 - Will enable the LED1 sync 25581e3ca3SDan Murphy 2 - Will enable the LED2 sync 26581e3ca3SDan Murphy 3 - Will enable the LED3 sync (LM36923 only) 271d9aa24bSDan Murphy 281d9aa24bSDan MurphyOptional child properties: 291d9aa24bSDan Murphy - label : see Documentation/devicetree/bindings/leds/common.txt 301d9aa24bSDan Murphy - linux,default-trigger : 311d9aa24bSDan Murphy see Documentation/devicetree/bindings/leds/common.txt 321d9aa24bSDan Murphy 331d9aa24bSDan MurphyExample: 341d9aa24bSDan Murphy 351d9aa24bSDan Murphyled-controller@36 { 361d9aa24bSDan Murphy compatible = "ti,lm3692x"; 371d9aa24bSDan Murphy reg = <0x36>; 381d9aa24bSDan Murphy #address-cells = <1>; 391d9aa24bSDan Murphy #size-cells = <0>; 401d9aa24bSDan Murphy 411d9aa24bSDan Murphy enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; 421d9aa24bSDan Murphy vled-supply = <&vbatt>; 431d9aa24bSDan Murphy 441d9aa24bSDan Murphy led@0 { 451d9aa24bSDan Murphy reg = <0>; 461d9aa24bSDan Murphy label = "white:backlight_cluster"; 471d9aa24bSDan Murphy linux,default-trigger = "backlight"; 481d9aa24bSDan Murphy }; 491d9aa24bSDan Murphy} 501d9aa24bSDan Murphy 511d9aa24bSDan MurphyFor more product information please see the link below: 521d9aa24bSDan Murphyhttp://www.ti.com/lit/ds/snvsa29/snvsa29.pdf 53