arch/arm/boot/dts/overlays/gpio-poweroff-overlay.dts

   1 // Definitions for gpio-poweroff module
   2 /dts-v1/;
   3 /plugin/;
   4
   5 / {
   6         compatible = "brcm,bcm2835";
   7
   8         fragment@0 {
   9                 target-path = "/";
  10                 __overlay__ {
  11                         power_ctrl: power_ctrl {
  12                                 compatible = "gpio-poweroff";
  13                                 gpios = <&gpio 26 0>;
  14                                 force;
  15                         };
  16                 };
  17         };
  18
  19         fragment@1 {
  20                 target = <&gpio>;
  21                 __overlay__ {
  22                         power_ctrl_pins: power_ctrl_pins {
  23                                 brcm,pins = <26>;
  24                                 brcm,function = <1>; // out
  25                         };
  26                 };
  27         };
  28
  29         __overrides__ {
  30                 gpiopin =       <&power_ctrl>,"gpios:4",
  31                                 <&power_ctrl_pins>,"brcm,pins:0";
  32                 active_low =    <&power_ctrl>,"gpios:8";
  33                 input =         <&power_ctrl>,"input?";
  34                 export =        <&power_ctrl>,"export?";
  35                 timeout_ms =    <&power_ctrl>,"timeout-ms:0";
  36                 active_delay_ms = <&power_ctrl>,"active-delay-ms:0";
  37                 inactive_delay_ms = <&power_ctrl>,"inactive-delay-ms:0";
  38         };
  39 };