* Some devices using AMS AS36xx LEDs controllers
are using 2 backlight paths to light the display,
mostly on Sony Huashan and Sony Blue board devices
* Although most of the displays have interlaced backlights
and the half dark path can be hard to see, other displays
have a top / bottom path that make half the screen on / off
* Control the backlight level of both path if the device does have
BACKLIGHT_PATH set, and if present, SECONDARY_BACKLIGHT_PATH
* Leave the HEALTD_BACKLIGHT_LEVEL config accessible
to override the default 100 / 255 brightness used in healthd
Change-Id: If774c3e66acedddf7ba676581e7c88b7e83a66b6
Signed-off-by: Adrian DC <radian.dc@gmail.com>
* Moving this to open-source from CyanogenOS :)
* Thanks to Chao Chen, Ethan Chen, Pat Erley, Scott Mertz,
and Keith Mok for various contributions to this.
Change-Id: If79f9c279668d14ee0cde62889bb09e7185ef08c
Ricardo Cerqueira
Luca Stefani
Adrian DC
Steve Kondik