1* Spreadtrum DMA controller
2
3This binding follows the generic DMA bindings defined in dma.txt.
4
5Required properties:
6- compatible: Should be "sprd,sc9860-dma".
7- reg: Should contain DMA registers location and length.
8- interrupts: Should contain one interrupt shared by all channel.
9- #dma-cells: must be <1>. Used to represent the number of integer
10	cells in the dmas property of client device.
11- dma-channels : Number of DMA channels supported. Should be 32.
12- clock-names: Should contain the clock of the DMA controller.
13- clocks: Should contain a clock specifier for each entry in clock-names.
14
15Deprecated properties:
16- #dma-channels : Number of DMA channels supported. Should be 32.
17
18Example:
19
20Controller:
21apdma: dma-controller@20100000 {
22	compatible = "sprd,sc9860-dma";
23	reg = <0x20100000 0x4000>;
24	interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>;
25	#dma-cells = <1>;
26	dma-channels = <32>;
27	clock-names = "enable";
28	clocks = <&clk_ap_ahb_gates 5>;
29};
30
31
32Client:
33DMA clients connected to the Spreadtrum DMA controller must use the format
34described in the dma.txt file, using a two-cell specifier for each channel.
35The two cells in order are:
361. A phandle pointing to the DMA controller.
372. The slave id.
38
39spi0: spi@70a00000{
40	...
41	dma-names = "rx_chn", "tx_chn";
42	dmas = <&apdma 11>, <&apdma 12>;
43	...
44};
45