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* Broadcom BCM2835 SoC I2S/PCM module
Required properties:
- compatible: "brcm,bcm2835-i2s"
- reg: A list of base address and size entries:
* The first entry should cover the PCM registers
* The second entry should cover the PCM clock registers
- dmas: List of DMA controller phandle and DMA request line ordered pairs.
- dma-names: Identifier string for each DMA request line in the dmas property.
These strings correspond 1:1 with the ordered pairs in dmas.
One of the DMA channels will be responsible for transmission (should be
named "tx") and one for reception (should be named "rx").
bcm2835_i2s: i2s@7e203000 {
compatible = "brcm,bcm2835-i2s";
reg = <0x7e203000 0x20>,
<0x7e101098 0x02>;
dmas = <&dma 2>,
<&dma 3>;
dma-names = "tx", "rx";