Bindings/sound/nvidia,tegra20-ac97.txt

   1 NVIDIA Tegra 20 AC97 controller
   2
   3 Required properties:
   4 - compatible : "nvidia,tegra20-ac97"
   5 - reg : Should contain AC97 controller registers location and length
   6 - interrupts : Should contain AC97 interrupt
   7 - resets : Must contain an entry for each entry in reset-names.
   8   See ../reset/reset.txt for details.
   9 - reset-names : Must include the following entries:
  10   - ac97
  11 - dmas : Must contain an entry for each entry in clock-names.
  12   See ../dma/dma.txt for details.
  13 - dma-names : Must include the following entries:
  14   - rx
  15   - tx
  16 - clocks : Must contain one entry, for the module clock.
  17   See ../clocks/clock-bindings.txt for details.
  18 - nvidia,codec-reset-gpio : The Tegra GPIO controller's phandle and the number
  19   of the GPIO used to reset the external AC97 codec
  20 - nvidia,codec-sync-gpio : The Tegra GPIO controller's phandle and the number
  21   of the GPIO corresponding with the AC97 DAP _FS line
  22
  23 Example:
  24
  25 ac97@70002000 {
  26         compatible = "nvidia,tegra20-ac97";
  27         reg = <0x70002000 0x200>;
  28         interrupts = <0 81 0x04>;
  29         nvidia,codec-reset-gpio = <&gpio 170 0>;
  30         nvidia,codec-sync-gpio = <&gpio 120 0>;
  31         clocks = <&tegra_car 3>;
  32         resets = <&tegra_car 3>;
  33         reset-names = "ac97";
  34         dmas = <&apbdma 12>, <&apbdma 12>;
  35         dma-names = "rx", "tx";
  36 };