bindings/dma/k3dma.txt

1 * Hisilicon K3 DMA controller
3 See dma.txt first
6 - compatible: Must be one of
7 -              "hisilicon,k3-dma-1.0"
8 -              "hisilicon,hisi-pcm-asp-dma-1.0"
9 - reg: Should contain DMA registers location and length.
10 - interrupts: Should contain one interrupt shared by all channel
11 - #dma-cells: see dma.txt, should be 1, para number
12 - dma-channels: physical channels supported
13 - dma-requests: virtual channels supported, each virtual channel
15 - clocks: clock required
20 		dma0: dma@fcd02000 {
21 			compatible = "hisilicon,k3-dma-1.0";
23 			#dma-cells = <1>;
24 			dma-channels = <16>;
25 			dma-requests = <27>;
32 For example, i2c0 read channel request line is 18, while write channel use 19
35 			compatible = "snps,designware-i2c";
37 				 &dma0 19>;        /* write channel */
38 			dma-names = "rx", "tx";
42 			compatible = "snps,designware-i2c";
44 				 &dma0 21>;        /* write channel */
45 			dma-names = "rx", "tx";