kernel/Documentation/devicetree/bindings/sound/spdif-receiver.txt

   1 Device-Tree bindings for dummy spdif receiver
   2
   3 Required properties:
   4         - compatible: should be "linux,spdif-dir".
   5
   6 Example node:
   7
   8         codec: spdif-receiver {
   9                 compatible = "linux,spdif-dir";
  10         };