Kernel-4.18.0-80.el8_arcxcnn_bl

Binding for ArcticSand arc2c0608 LED driver

Required properties:

• compatible: should be “arc,arc2c0608”
• reg: slave address

Optional properties:

• default-brightness: brightness value on boot, value from: 0-4095

• label: The name of the backlight device

        See Documentation/devicetree/bindings/leds/common.txt
  

• led-sources: List of enabled channels from 0 to 5.

        See Documentation/devicetree/bindings/leds/common.txt
  

• arc,led-config-0: setting for register ILED_CONFIG_0

• arc,led-config-1: setting for register ILED_CONFIG_1

• arc,dim-freq: PWM mode frequence setting (bits [3:0] used)

• arc,comp-config: setting for register CONFIG_COMP

• arc,filter-config: setting for register FILTER_CONFIG

• arc,trim-config: setting for register IMAXTUNE

Note: Optional properties not specified will default to values in IC EPROM

Example:

arc2c0608@30 {
compatible = “arc,arc2c0608”;
reg = <0x30>;
default-brightness = <500>;
label = “lcd-backlight”;
linux,default-trigger = “backlight”;
led-sources = <0 1 2 5>;
};