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

   1 // Definitions for ir-gpio module
   2 /dts-v1/;
   3 /plugin/;
   4
   5 / {
   6         compatible = "brcm,bcm2708";
   7
   8         fragment@0 {
   9                 target-path = "/";
  10                 __overlay__ {
  11                         gpio_ir: ir-receiver {
  12                                 compatible = "gpio-ir-receiver";
  13
  14                                 // pin number, high or low
  15                                 gpios = <&gpio 18 1>;
  16
  17                                 // parameter for keymap name
  18                                 linux,rc-map-name = "rc-rc6-mce";
  19
  20                                 status = "okay";
  21                         };
  22                 };
  23         };
  24
  25         fragment@1 {
  26                 target = <&gpio>;
  27                 __overlay__ {
  28                         gpio_ir_pins: gpio_ir_pins {
  29                                 brcm,pins = <18>;                       // pin 18
  30                                 brcm,function = <0>;                    // in
  31                                 brcm,pull = <1>;                        // down
  32                         };
  33                 };
  34         };
  35
  36         __overrides__ {
  37                 // parameters
  38                 gpio_pin =      <&gpio_ir>,"gpios:4",
  39                                         <&gpio_ir_pins>,"brcm,pins:0";  // pin number
  40                 gpio_pull = <&gpio_ir_pins>,"brcm,pull:0";              // pull-up/down state
  41
  42                 rc-map-name = <&gpio_ir>,"linux,rc-map-name";           // default rc map
  43         };
  44 };