Kernel-4.18.0-80.el8_pca963x

LEDs connected to pca9632, pca9633 or pca9634

Required properties:

• compatible : should be : “nxp,pca9632”, “nxp,pca9633”, “nxp,pca9634” or “nxp,pca9635”

Optional properties:

• nxp,totem-pole : use totem pole (push-pull) instead of open-drain (pca9632 defaults
  to open-drain, newer chips to totem pole)
• nxp,hw-blink : use hardware blinking instead of software blinking
• nxp,period-scale : In some configurations, the chip blinks faster than expected.

         This parameter provides a scaling ratio (fixed point, decimal divided
         by 1000) to compensate, e.g. 1300=1.3x and 750=0.75x.
  

• nxp,inverted-out: invert the polarity of the generated PWM

Each led is represented as a sub-node of the nxp,pca963x device.

LED sub-node properties:

• label : (optional) see Documentation/devicetree/bindings/leds/common.txt
• reg : number of LED line (could be from 0 to 3 in pca9632 or pca9633,

    0 to 7 in pca9634, or 0 to 15 in pca9635)
  

• linux,default-trigger : (optional)
  see Documentation/devicetree/bindings/leds/common.txt

Examples:

pca9632: pca9632 {
compatible = “nxp,pca9632”;
#address-cells = <1>;
#size-cells = <0>;
reg = <0x62>;

red@0 {
    label = "red";
    reg = <0>;
    linux,default-trigger = "none";
};
green@1 {
    label = "green";
    reg = <1>;
    linux,default-trigger = "none";
};
blue@2 {
    label = "blue";
    reg = <2>;
    linux,default-trigger = "none";
};
unused@3 {
    label = "unused";
    reg = <3>;
    linux,default-trigger = "none";
};

};