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+* ZTE ZX296702 DMA controller
+
+Required properties:
+- compatible: Should be "zte,zx296702-dma"
+- reg: Should contain DMA registers location and length.
+- interrupts: Should contain one interrupt shared by all channel
+- #dma-cells: see dma.txt, should be 1, para number
+- dma-channels: physical channels supported
+- dma-requests: virtual channels supported, each virtual channel
+ have specific request line
+- clocks: clock required
+
+Example:
+
+Controller:
+ dma: dma-controller@09c00000{
+ compatible = "zte,zx296702-dma";
+ reg = <0x09c00000 0x1000>;
+ clocks = <&topclk ZX296702_DMA_ACLK>;
+ interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>;
+ #dma-cells = <1>;
+ dma-channels = <24>;
+ dma-requests = <24>;
+ };
+
+Client:
+Use specific request line passing from dmax
+For example, spdif0 tx channel request line is 4
+ spdif0: spdif0@b004000 {
+ #sound-dai-cells = <0>;
+ compatible = "zte,zx296702-spdif";
+ reg = <0x0b004000 0x1000>;
+ clocks = <&lsp0clk ZX296702_SPDIF0_DIV>;
+ clock-names = "tx";
+ interrupts = <GIC_SPI 21 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma 4>;
+ dma-names = "tx";
+ }