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The Qualcomm PM8941 WLED block is used for backlight and should therefor be in the backlight framework and not in the LED framework. This moves the driver and adapts to the backlight api instead. Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Tested-by: Rob Clark <robdclark@gmail.com> Acked-by: Jacek Anaszewski <j.anaszewski@samsung.com> Acked-by: Jingoo Han <jingoohan1@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
41 lines
1.1 KiB
Plaintext
41 lines
1.1 KiB
Plaintext
Binding for Qualcomm PM8941 WLED driver
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Required properties:
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- compatible: should be "qcom,pm8941-wled"
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- reg: slave address
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Optional properties:
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- label: The name of the backlight device
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- qcom,cs-out: bool; enable current sink output
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- qcom,cabc: bool; enable content adaptive backlight control
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- qcom,ext-gen: bool; use externally generated modulator signal to dim
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- qcom,current-limit: mA; per-string current limit; value from 0 to 25
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default: 20mA
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- qcom,current-boost-limit: mA; boost current limit; one of:
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105, 385, 525, 805, 980, 1260, 1400, 1680
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default: 805mA
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- qcom,switching-freq: kHz; switching frequency; one of:
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600, 640, 685, 738, 800, 872, 960, 1066, 1200, 1371,
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1600, 1920, 2400, 3200, 4800, 9600,
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default: 1600kHz
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- qcom,ovp: V; Over-voltage protection limit; one of:
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27, 29, 32, 35
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default: 29V
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- qcom,num-strings: #; number of led strings attached; value from 1 to 3
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default: 2
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Example:
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pm8941-wled@d800 {
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compatible = "qcom,pm8941-wled";
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reg = <0xd800>;
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label = "backlight";
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qcom,cs-out;
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qcom,current-limit = <20>;
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qcom,current-boost-limit = <805>;
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qcom,switching-freq = <1600>;
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qcom,ovp = <29>;
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qcom,num-strings = <2>;
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};
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