linux-kernel - [PATCH 1/2] dt-bindings: dmaengine: Add Milbeaut AXI DMA controller bindings

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Date:   Mon, 25 Mar 2019 13:15:13 +0900
From:   Kazuhiro Kasai <kasai.kazuhiro@...ionext.com>
To:     vkoul@...nel.org, robh+dt@...nel.org, mark.rutland@....com
Cc:     dmaengine@...r.kernel.org, devicetree@...r.kernel.org,
        orito.takao@...ionext.com, sugaya.taichi@...ionext.com,
        kanematsu.shinji@...ionext.com, jaswinder.singh@...aro.org,
        masami.hiramatsu@...aro.org, linux-kernel@...r.kernel.org,
        Kazuhiro Kasai <kasai.kazuhiro@...ionext.com>
Subject: [PATCH 1/2] dt-bindings: dmaengine: Add Milbeaut AXI DMA controller bindings

Add Milbeaut AXI DMA controller bindings. This DMA controller has
only capable of memory to memory transfer.

Signed-off-by: Kazuhiro Kasai <kasai.kazuhiro@...ionext.com>
---
 .../devicetree/bindings/dma/xdmac-milbeaut.txt     | 24 ++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/dma/xdmac-milbeaut.txt

diff --git a/Documentation/devicetree/bindings/dma/xdmac-milbeaut.txt b/Documentation/devicetree/bindings/dma/xdmac-milbeaut.txt
new file mode 100644
index 0000000..3a77fb1
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/xdmac-milbeaut.txt
@@ -0,0 +1,24 @@
+* Milbeaut AXI DMA Controller
+
+Milbeaut AXI DMA controller has only memory to memory transfer capability.
+
+* DMA controller
+
+Required property:
+- compatible: 		Should be  "socionext,milbeaut-m10v-xdmac"
+- reg:			Should contain DMA registers location and length.
+- interrupts: 		Should contain all of the per-channel DMA interrupts.
+- #dma-cells: 		Should be 1.
+- dma-channels: 	Number of DMA channels supported by the controller.
+
+Example:
+	xdmac0: dma-controller@...50000 {
+		compatible = "socionext,milbeaut-m10v-xdmac";
+		reg = <0x1c250000 0x1000>;
+		interrupts = <0 17 0x4>,
+			     <0 18 0x4>,
+			     <0 19 0x4>,
+			     <0 20 0x4>;
+		#dma-cells = <1>;
+		dma-channels = <4>;
+	};
-- 
1.9.1