FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/sound/adi,axi-i2s.txt

     ADI AXI-I2S controller
     
     The core can be generated with transmit (playback), only receive
     (capture) or both directions enabled.
     
     Required properties:
      - compatible : Must be "adi,axi-i2s-1.00.a"
      - reg : Must contain I2S core's registers location and length
      - clocks : Pairs of phandle and specifier referencing the controller's clocks.
       The controller expects two clocks, the clock used for the AXI interface and
       the clock used as the sampling rate reference clock sample.
     - clock-names : "axi" for the clock to the AXI interface, "ref" for the sample
       rate reference clock.
     - dmas: Pairs of phandle and specifier for the DMA channels that are used by
       the core. The core expects two dma channels if both transmit and receive are
       enabled, one channel otherwise.
     - dma-names : "tx" for the transmit channel, "rx" for the receive channel.
    
    For more details on the 'dma', 'dma-names', 'clock' and 'clock-names' properties
    please check:
            * resource-names.txt
            * clock/clock-bindings.txt
            * dma/dma.txt
    
    Example:
    
            i2s: i2s@77600000 {
                    compatible = "adi,axi-i2s-1.00.a";
                    reg = <0x77600000 0x1000>;
                    clocks = <&clk 15>, <&audio_clock>;
                    clock-names = "axi", "ref";
                    dmas = <&ps7_dma 0>, <&ps7_dma 1>;
                    dma-names = "tx", "rx";
            };

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