kernelconfig_penguin
default or selected kernelversion does not have config value CONFIG_BACKLIGHT_LED.
Result is shown for kernelversion 5.9.9

Generic LED based Backlight Driver

modulename: led_bl.ko
configname: CONFIG_BACKLIGHT_LED

Linux Kernel Configuration
└─> Device Drivers
└─> Graphics support
└─> Backlight & LCD device support
└─> Device Tree and Open Firmware support
└─> Generic LED based Backlight Driver

If you have a LCD backlight adjustable by LED class driver, say Y
to enable this driver.


source code:


drivers/video/backlight/led_bl.c