FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/sound/amlogic,axg-fifo.txt

     * Amlogic Audio FIFO controllers
     
     Required properties:
     - compatible: 'amlogic,axg-toddr' or
                   'amlogic,axg-toddr' or
                   'amlogic,g12a-frddr' or
                   'amlogic,g12a-toddr' or
                   'amlogic,sm1-frddr' or
                   'amlogic,sm1-toddr'
    - reg: physical base address of the controller and length of memory
           mapped region.
    - interrupts: interrupt specifier for the fifo.
    - clocks: phandle to the fifo peripheral clock provided by the audio
              clock controller.
    - resets: list of reset phandle, one for each entry reset-names.
    - reset-names: should contain the following:
      * "arb" : memory ARB line (required)
      * "rst" : dedicated device reset line (optional)
    - #sound-dai-cells: must be 0.
    - amlogic,fifo-depth: The size of the controller's fifo in bytes. This
                          is useful for determining certain configuration such
                          as the flush threshold of the fifo
    
    Example of FRDDR A on the A113 SoC:
    
    frddr_a: audio-controller@1c0 {
            compatible = "amlogic,axg-frddr";
            reg = <0x0 0x1c0 0x0 0x1c>;
            #sound-dai-cells = <0>;
            interrupts = <GIC_SPI 88 IRQ_TYPE_EDGE_RISING>;
            clocks = <&clkc_audio AUD_CLKID_FRDDR_A>;
            resets = <&arb AXG_ARB_FRDDR_A>;
            fifo-depth = <512>;
    };

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