On Thu 2017-11-16 17:48:34, Kiran Gunda wrote: > WLED driver provides the interface to the display driver to > adjust the brightness of the display backlight. > > Signed-off-by: Kiran Gunda <kgunda@xxxxxxxxxxxxxx> > --- > .../bindings/leds/backlight/qcom-spmi-wled.txt | 90 ++++ > drivers/video/backlight/Kconfig | 9 + > drivers/video/backlight/Makefile | 1 + > drivers/video/backlight/qcom-spmi-wled.c | 504 +++++++++++++++++++++ > 4 files changed, 604 insertions(+) > create mode 100644 Documentation/devicetree/bindings/leds/backlight/qcom-spmi-wled.txt > create mode 100644 drivers/video/backlight/qcom-spmi-wled.c > > diff --git a/Documentation/devicetree/bindings/leds/backlight/qcom-spmi-wled.txt b/Documentation/devicetree/bindings/leds/backlight/qcom-spmi-wled.txt > new file mode 100644 > index 0000000..f1ea25b > --- /dev/null > +++ b/Documentation/devicetree/bindings/leds/backlight/qcom-spmi-wled.txt > @@ -0,0 +1,90 @@ > +Binding for Qualcomm WLED driver > + > +WLED (White Light Emitting Diode) driver is used for controlling display > +backlight that is part of PMIC on Qualcomm Technologies reference platforms. > +The PMIC is connected to the host processor via SPMI bus. > + > +- compatible > + Usage: required > + Value type: <string> > + Definition: should be "qcom,pm8998-spmi-wled". > + > +- reg > + Usage: required > + Value type: <prop-encoded-array> > + Definition: Base address and size of the WLED modules. > + > +- reg-names > + Usage: required > + Value type: <string> > + Definition: Names associated with base addresses. should be > + "qcom-wled-ctrl-base", "qcom-wled-sink-base". > + > +- label > + Usage: required > + Value type: <string> > + Definition: The name of the backlight device. > + > +- default-brightness > + Usage: optional > + Value type: <u32> > + Definition: brightness value on boot, value from: 0-4095 > + default: 2048 > + > +- qcom,fs-current-limit I'd add "-uA" suffix here. > + Usage: optional > + Value type: <u32> > + Definition: per-string full scale current limit in uA. value from > + 0 to 30000 with 5000 uA resolution. default: 25000 uA > + > +- qcom,current-boost-limit And -mA suffix here. Similar for other units. Thanks, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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