On Tue 19 Jun 04:13 PDT 2018, Kiran Gunda wrote: > Restructure the qcom-wled bindings for the better readability. > > Signed-off-by: Kiran Gunda <kgunda@xxxxxxxxxxxxxx> Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> Regards, Bjorn > --- > .../bindings/leds/backlight/qcom-wled.txt | 110 ++++++++++++++++----- > 1 file changed, 85 insertions(+), 25 deletions(-) > > diff --git a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt > index fb39e32..14f28f2 100644 > --- a/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt > +++ b/Documentation/devicetree/bindings/leds/backlight/qcom-wled.txt > @@ -1,30 +1,90 @@ > Binding for Qualcomm Technologies, Inc. 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 > +WLED (White Light Emitting Diode) driver is used for controlling display > +backlight that is part of PMIC on Qualcomm Technologies, Inc. reference > +platforms. The PMIC is connected to the host processor via SPMI bus. > + > +- compatible > + Usage: required > + Value type: <string> > + Definition: should be one of: > + "qcom,pm8941-wled" > + "qcom,pmi8998-wled" > + "qcom,pm660l-wled" > + > +- reg > + Usage: required > + Value type: <prop encoded array> > + Definition: Base address of the WLED modules. > + > +- default-brightness > + Usage: optional > + Value type: <u32> > + Definition: brightness value on boot, value from: 0-4095 > + Default: 2048 > + > +- label > + Usage: required > + Value type: <string> > + Definition: The name of the backlight device > + > +- qcom,cs-out > + Usage: optional > + Value type: <bool> > + Definition: enable current sink output. > + This property is supported only for PM8941. > + > +- qcom,cabc > + Usage: optional > + Value type: <bool> > + Definition: enable content adaptive backlight control. > + > +- qcom,ext-gen > + Usage: optional > + Value type: <bool> > + Definition: use externally generated modulator signal to dim. > + This property is supported only for PM8941. > + > +- qcom,current-limit > + Usage: optional > + Value type: <u32> > + Definition: mA; per-string current limit > + value: For pm8941: from 0 to 25 with 5 mA step > + Default 20 mA. > + For pmi8998: from 0 to 30 with 5 mA step > + Default 25 mA. > + > +- qcom,current-boost-limit > + Usage: optional > + Value type: <u32> > + Definition: mA; boost current limit. > + For pm8941: one of: 105, 385, 525, 805, 980, 1260, 1400, > + 1680. Default: 805 mA > + For pmi8998: one of: 105, 280, 450, 620, 970, 1150, 1300, > + 1500. Default: 970 mA > + > +- qcom,switching-freq > + Usage: optional > + Value type: <u32> > + Definition: kHz; switching frequency; one of: 600, 640, 685, 738, > + 800, 872, 960, 1066, 1200, 1371, 1600, 1920, 2400, 3200, > + 4800, 9600. > + Default: for pm8941: 1600 kHz > + for pmi8998: 800 kHz > + > +- qcom,ovp > + Usage: optional > + Value type: <u32> > + Definition: V; Over-voltage protection limit; one of: > + 27, 29, 32, 35. default: 29V > + This property is supported only for PM8941. > + > +- qcom,num-strings > + Usage: optional > + Value type: <u32> > + Definition: #; number of led strings attached; > + value from 1 to 3. default: 2 > + This property is supported only for PM8941. > > Example: > > -- > The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, > a Linux Foundation Collaborative Project > -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
