Kernel-3.10.0-957.el7_nvidia,tegra20-ac97

NVIDIA Tegra 20 AC97 controller

Required properties:

  • compatible : “nvidia,tegra20-ac97”
  • reg : Should contain AC97 controller registers location and length
  • interrupts : Should contain AC97 interrupt
  • nvidia,dma-request-selector : The Tegra DMA controller’s phandle and
    request selector for the AC97 controller
  • nvidia,codec-reset-gpio : The Tegra GPIO controller’s phandle and the number
    of the GPIO used to reset the external AC97 codec
  • nvidia,codec-sync-gpio : The Tegra GPIO controller’s phandle and the number
    of the GPIO corresponding with the AC97 DAP _FS line
    Example:

ac97@70002000 {
compatible = “nvidia,tegra20-ac97”;
reg = <0x70002000 0x200>;
interrupts = <0 81 0x04>;
nvidia,dma-request-selector = <&apbdma 12>;
nvidia,codec-reset-gpio = <&gpio 170 0>;
nvidia,codec-sync-gpio = <&gpio 120 0>;
};