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