Documentation/devicetree/bindings/leds/leds-pm8941-wled.txt

   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 };