arch/arm/boot/dts/overlays/uart0-pi5-overlay.dts

   1 /dts-v1/;
   2 /plugin/;
   3
   4 /{
   5         compatible = "brcm,bcm2712";
   6
   7         fragment@0 {
   8                 target = <&uart0>;
   9                 frag0: __overlay__ {
  10                         status = "okay";
  11                 };
  12         };
  13
  14         __overrides__ {
  15                 ctsrts = <&frag0>,"pinctrl-0:4=",<&uart0_ctsrts_pins>;
  16         };
  17 };