From mboxrd@z Thu Jan 1 00:00:00 1970 From: open.sudheer@gmail.com (sudheer.v) Date: Wed, 17 Oct 2018 09:41:01 +0530 Subject: [[PATCH] 4/9] Documentation-DTbindings-DMA-controller-of-AST2500 In-Reply-To: <1539749466-3912-1-git-send-email-open.sudheer@gmail.com> References: <1539749466-3912-1-git-send-email-open.sudheer@gmail.com> Message-ID: <1539749466-3912-5-git-send-email-open.sudheer@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Signed-off-by: sudheer.v --- .../devicetree/bindings/dma/ast-uart-sdma.txt | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/ast-uart-sdma.txt diff --git a/Documentation/devicetree/bindings/dma/ast-uart-sdma.txt b/Documentation/devicetree/bindings/dma/ast-uart-sdma.txt new file mode 100644 index 0000000..e770df2 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/ast-uart-sdma.txt @@ -0,0 +1,23 @@ +* Aspeed Direct Memory Access (DMA) Controller for AST25XX + + +* DMA controller + +Required properties: +- compatible : Should be "aspeed,ast-uart-sdma" +- reg : Should contain SDMA registers location and length +- interrupts : Should contain SDMA interrupt +- dma-channels: number of DMA channels in DMA controller + +Optional properties: + +Example + ast_uart_sdma: uart_sdma at 1e79e000 { + compatible = "aspeed,ast-uart-sdma"; + reg = <0x1e79e000 0x400>; + interrupts = <50>; + #dma-cells = <1>; + dma-channels = <8>; + status = "disabled"; + }; + -- 1.9.1