1NVIDIA Tegra 20 AC97 controller
2
3Required properties:
4- compatible : "nvidia,tegra20-ac97"
5- reg : Should contain AC97 controller registers location and length
6- interrupts : Should contain AC97 interrupt
7- nvidia,dma-request-selector : The Tegra DMA controller's phandle and
8  request selector for the AC97 controller
9- nvidia,codec-reset-gpio : The Tegra GPIO controller's phandle and the number
10  of the GPIO used to reset the external AC97 codec
11- nvidia,codec-sync-gpio : The Tegra GPIO controller's phandle and the number
12  of the GPIO corresponding with the AC97 DAP _FS line
13Example:
14
15ac97@70002000 {
16	compatible = "nvidia,tegra20-ac97";
17	reg = <0x70002000 0x200>;
18	interrupts = <0 81 0x04>;
19	nvidia,dma-request-selector = <&apbdma 12>;
20	nvidia,codec-reset-gpio = <&gpio 170 0>;
21	nvidia,codec-sync-gpio = <&gpio 120 0>;
22};
23