Kernel-4.18.0-80.el8_gpio-backlight

gpio-backlight bindings

Required properties:

• compatible: “gpio-backlight”
• gpios: describes the gpio that is used for enabling/disabling the backlight.
  refer to bindings/gpio/gpio.txt for more details.

Optional properties:

• default-on: enable the backlight at boot.

Example:
backlight {
compatible = “gpio-backlight”;
gpios = <&gpio3 4 GPIO_ACTIVE_HIGH>;
default-on;
};