Based on kernel version 4.2. Page generated on 2015-09-09 12:09 EST.
1 Binding for Qualcomm PM8941 WLED driver 2 3 Required properties: 4 - compatible: should be "qcom,pm8941-wled" 5 - reg: slave address 6 7 Optional properties: 8 - label: The label for this led 9 See Documentation/devicetree/bindings/leds/common.txt 10 - linux,default-trigger: Default trigger assigned to the LED 11 See Documentation/devicetree/bindings/leds/common.txt 12 - qcom,cs-out: bool; enable current sink output 13 - qcom,cabc: bool; enable content adaptive backlight control 14 - qcom,ext-gen: bool; use externally generated modulator signal to dim 15 - qcom,current-limit: mA; per-string current limit; value from 0 to 25 16 default: 20mA 17 - qcom,current-boost-limit: mA; boost current limit; one of: 18 105, 385, 525, 805, 980, 1260, 1400, 1680 19 default: 805mA 20 - qcom,switching-freq: kHz; switching frequency; one of: 21 600, 640, 685, 738, 800, 872, 960, 1066, 1200, 1371, 22 1600, 1920, 2400, 3200, 4800, 9600, 23 default: 1600kHz 24 - qcom,ovp: V; Over-voltage protection limit; one of: 25 27, 29, 32, 35 26 default: 29V 27 - qcom,num-strings: #; number of led strings attached; value from 1 to 3 28 default: 2 29 30 Example: 31 32 pm8941-wled@d800 { 33 compatible = "qcom,pm8941-wled"; 34 reg = <0xd800>; 35 label = "backlight"; 36 37 qcom,cs-out; 38 qcom,current-limit = <20>; 39 qcom,current-boost-limit = <805>; 40 qcom,switching-freq = <1600>; 41 qcom,ovp = <29>; 42 qcom,num-strings = <2>; 43 };