The following warning is observed on Jetson TX1 platform because the
supply regulator is not specified for the backlight.
WARNING KERN lp855x 0-002c: 0-002c supply power not found, using dummy regulator
The backlight supply is provided by the 3.3V SYS rail and so add this
as the supply for the backlight.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
backlight: backlight@2c {
compatible = "ti,lp8557";
reg = <0x2c>;
+ power-supply = <&vdd_3v3_sys>;
dev-ctrl = /bits/ 8 <0x80>;
init-brt = /bits/ 8 <0xff>;