linux-stable/Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt
Jassi Brar df781c0cee dt-bindings: milbeaut-m10v-hdmac: Add Socionext Milbeaut HDMAC bindings
Document the devicetree bindings for Socionext Milbeaut HDMAC
controller. Controller has upto 8 floating channels, that need
a predefined slave-id to work from a set of slaves.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Link: https://lore.kernel.org/r/20191015033350.14866-1-jassisinghbrar@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2019-10-18 13:32:17 +05:30

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* Milbeaut AHB DMA Controller
Milbeaut AHB DMA controller has transfer capability below.
- device to memory transfer
- memory to device transfer
Required property:
- compatible: Should be "socionext,milbeaut-m10v-hdmac"
- reg: Should contain DMA registers location and length.
- interrupts: Should contain all of the per-channel DMA interrupts.
Number of channels is configurable - 2, 4 or 8, so
the number of interrupts specified should be {2,4,8}.
- #dma-cells: Should be 1. Specify the ID of the slave.
- clocks: Phandle to the clock used by the HDMAC module.
Example:
hdmac1: dma-controller@1e110000 {
compatible = "socionext,milbeaut-m10v-hdmac";
reg = <0x1e110000 0x10000>;
interrupts = <0 132 4>,
<0 133 4>,
<0 134 4>,
<0 135 4>,
<0 136 4>,
<0 137 4>,
<0 138 4>,
<0 139 4>;
#dma-cells = <1>;
clocks = <&dummy_clk>;
};