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: 294dcbc8f8SJacek Anaszewski - function : see Documentation/devicetree/bindings/leds/common.txt 304dcbc8f8SJacek Anaszewski - color : see Documentation/devicetree/bindings/leds/common.txt 314dcbc8f8SJacek Anaszewski - label : see Documentation/devicetree/bindings/leds/common.txt (deprecated) 321d9aa24bSDan Murphy - linux,default-trigger : 331d9aa24bSDan Murphy see Documentation/devicetree/bindings/leds/common.txt 341d9aa24bSDan Murphy 351d9aa24bSDan MurphyExample: 361d9aa24bSDan Murphy 374dcbc8f8SJacek Anaszewski#include <dt-bindings/leds/common.h> 384dcbc8f8SJacek Anaszewski 391d9aa24bSDan Murphyled-controller@36 { 401d9aa24bSDan Murphy compatible = "ti,lm3692x"; 411d9aa24bSDan Murphy reg = <0x36>; 421d9aa24bSDan Murphy #address-cells = <1>; 431d9aa24bSDan Murphy #size-cells = <0>; 441d9aa24bSDan Murphy 451d9aa24bSDan Murphy enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>; 461d9aa24bSDan Murphy vled-supply = <&vbatt>; 471d9aa24bSDan Murphy 481d9aa24bSDan Murphy led@0 { 491d9aa24bSDan Murphy reg = <0>; 504dcbc8f8SJacek Anaszewski function = LED_FUNCTION_BACKLIGHT; 514dcbc8f8SJacek Anaszewski color = <LED_COLOR_ID_WHITE>; 521d9aa24bSDan Murphy linux,default-trigger = "backlight"; 531d9aa24bSDan Murphy }; 541d9aa24bSDan Murphy} 551d9aa24bSDan Murphy 561d9aa24bSDan MurphyFor more product information please see the link below: 571d9aa24bSDan Murphyhttp://www.ti.com/lit/ds/snvsa29/snvsa29.pdf 58