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- Binding for Qualcomm PM8941 WLED driver
- Required properties:
- - compatible: should be "qcom,pm8941-wled"
- - reg: slave address
- Optional properties:
- - default-brightness: brightness value on boot, value from: 0-4095
- default: 2048
- - label: The name of the backlight device
- - qcom,cs-out: bool; enable current sink output
- - qcom,cabc: bool; enable content adaptive backlight control
- - qcom,ext-gen: bool; use externally generated modulator signal to dim
- - qcom,current-limit: mA; per-string current limit; value from 0 to 25
- default: 20mA
- - qcom,current-boost-limit: mA; boost current limit; one of:
- 105, 385, 525, 805, 980, 1260, 1400, 1680
- default: 805mA
- - qcom,switching-freq: kHz; switching frequency; one of:
- 600, 640, 685, 738, 800, 872, 960, 1066, 1200, 1371,
- 1600, 1920, 2400, 3200, 4800, 9600,
- default: 1600kHz
- - qcom,ovp: V; Over-voltage protection limit; one of:
- 27, 29, 32, 35
- default: 29V
- - qcom,num-strings: #; number of led strings attached; value from 1 to 3
- default: 2
- Example:
- pm8941-wled@d800 {
- compatible = "qcom,pm8941-wled";
- reg = <0xd800>;
- label = "backlight";
- qcom,cs-out;
- qcom,current-limit = <20>;
- qcom,current-boost-limit = <805>;
- qcom,switching-freq = <1600>;
- qcom,ovp = <29>;
- qcom,num-strings = <2>;
- };
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