linux/Documentation/devicetree/bindings/sound/nvidia,tegra30-i2s.txt
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   1NVIDIA Tegra30 I2S controller
   2
   3Required properties:
   4- compatible : "nvidia,tegra30-i2s"
   5- reg : Should contain I2S registers location and length
   6- nvidia,ahub-cif-ids : The list of AHUB CIF IDs for this port, rx (playback)
   7  first, tx (capture) second. See nvidia,tegra30-ahub.txt for values.
   8
   9Example:
  10
  11i2s@70002800 {
  12        compatible = "nvidia,tegra30-i2s";
  13        reg = <0x70080300 0x100>;
  14        nvidia,ahub-cif-ids = <4 4>;
  15};
  16