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OMAP SoC AES crypto Module

Required properties:

- compatible : Should contain entries for this and backward compatible
  AES versions:
  - "ti,omap2-aes" for OMAP2.
  - "ti,omap3-aes" for OMAP3.
  - "ti,omap4-aes" for OMAP4 and AM33XX.
  Note that the OMAP2 and 3 versions are compatible (OMAP3 supports
  more algorithms) but they are incompatible with OMAP4.
- ti,hwmods: Name of the hwmod associated with the AES module
- reg : Offset and length of the register set for the module
- interrupts : the interrupt-specifier for the AES module.

Optional properties:
- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
	Documentation/devicetree/bindings/dma/dma.txt
- dma-names: DMA request names should include "tx" and "rx" if present.

Example:
	/* AM335x */
	aes: aes@53500000 {
		compatible = "ti,omap4-aes";
		ti,hwmods = "aes";
		reg = <0x53500000 0xa0>;
		interrupts = <102>;
		dmas = <&edma 6>,
		       <&edma 5>;
		dma-names = "tx", "rx";
	};