Documentation/devicetree/bindings/sound/designware-i2s.txt

   1 DesignWare I2S controller
   2
   3 Required properties:
   4  - compatible : Must be "snps,designware-i2s"
   5  - reg : Must contain the I2S core's registers location and length
   6  - clocks : Pairs of phandle and specifier referencing the controller's
   7    clocks. The controller expects one clock: the clock used as the sampling
   8    rate reference clock sample.
   9  - clock-names : "i2sclk" for the sample rate reference clock.
  10  - dmas: Pairs of phandle and specifier for the DMA channels that are used by
  11    the core. The core expects one or two dma channels: one for transmit and
  12    one for receive.
  13  - dma-names : "tx" for the transmit channel, "rx" for the receive channel.
  14
  15 For more details on the 'dma', 'dma-names', 'clock' and 'clock-names'
  16 properties please check:
  17         * resource-names.txt
  18         * clock/clock-bindings.txt
  19         * dma/dma.txt
  20
  21 Example:
  22
  23         soc_i2s: i2s@7ff90000 {
  24                 compatible = "snps,designware-i2s";
  25                 reg = <0x0 0x7ff90000 0x0 0x1000>;
  26                 clocks = <&scpi_i2sclk 0>;
  27                 clock-names = "i2sclk";
  28                 #sound-dai-cells = <0>;
  29                 dmas = <&dma0 5>;
  30                 dma-names = "tx";
  31         };