Hi everyone, I've been trying to turn on my lcd backlight at the u-boot stage to no avail. The device tree has a top level node whose compatible is 'pwm-backlight'. That driver never seems to get probed. The same problem is described here <https://stackoverflow.com/questions/62461096/pwm-backlight-driver-not-being-probed-in-u-boot>
I'm new to u-boot so please bear with me. From what I can gather from the docs a device gets activated/probed when *uclass_get_device *and friends are called. However I keep getting NULL, while *uclass_id_count(UCLASS_PANEL_BACKLIGHT) *correctly reports 1 device. A *dm_dump_all* at this stage shows the backlight is probed. All these calls are made in *board_late_init.* Does this have to do with the backlight being a top level device in the devicetree ?? Or is the a wrong assumption I'm making ? Any help would be greatly appreciated. Brandon
