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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";
};
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