From df781c0ceebae321fb7f7e96773ea451805e14b9 Mon Sep 17 00:00:00 2001 From: Jassi Brar Date: Mon, 14 Oct 2019 22:33:50 -0500 Subject: 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 Signed-off-by: Jassi Brar Link: https://lore.kernel.org/r/20191015033350.14866-1-jassisinghbrar@gmail.com Signed-off-by: Vinod Koul --- .../bindings/dma/milbeaut-m10v-hdmac.txt | 32 ++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt (limited to 'Documentation/devicetree/bindings/dma') diff --git a/Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt b/Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt new file mode 100644 index 000000000000..1f0875bd5abc --- /dev/null +++ b/Documentation/devicetree/bindings/dma/milbeaut-m10v-hdmac.txt @@ -0,0 +1,32 @@ +* 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>; + }; -- cgit v1.2.3-59-g8ed1b