Kernel-4.18.0-80.el8_designware-i2s

DesignWare I2S controller

Required properties:

• compatible : Must be “snps,designware-i2s”
• reg : Must contain the I2S core’s registers location and length
• clocks : Pairs of phandle and specifier referencing the controller’s
  clocks. The controller expects one clock: the clock used as the sampling
  rate reference clock sample.
• clock-names : “i2sclk” 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 one or two dma channels: one for transmit and
  one for receive.
• dma-names : “tx” for the transmit channel, “rx” for the receive channel.

Optional properties:

• interrupts: The interrupt line number for the I2S controller. Add this
  parameter if the I2S controller that you are using does not support DMA.

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:

soc_i2s: i2s@7ff90000 {
    compatible = "snps,designware-i2s";
    reg = <0x0 0x7ff90000 0x0 0x1000>;
    clocks = <&scpi_i2sclk 0>;
    clock-names = "i2sclk";
    #sound-dai-cells = <0>;
    dmas = <&dma0 5>;
    dma-names = "tx";
};