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dmaengine: xilinx: Use different channel names for each dma

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Current driver assumes that child node channel name is either
"xlnx,axi-vdma-mm2s-channel" or "xlnx,axi-vdma-s2mm-channel"
which is confusing the users of AXI DMA and CDMA.
This patch fixes this issue by using different channel
names for the AXI DMA and AXI CDMA child nodes.

Signed-off-by: Kedareswara rao Appana <appanad@xilinx.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Kedareswara rao Appana
2016-06-24 10:51:26 +05:30
committed by Vinod Koul
parent fde57a7c44
commit e131f1ba6f
2 changed files with 11 additions and 3 deletions
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6
Documentation/devicetree/bindings/dma/xilinx/xilinx_dma.txt
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@@ -50,8 +50,12 @@ Optional properties for VDMA:
{3}, flush s2mm channel
Required child node properties:
- compatible: It should be either "xlnx,axi-vdma-mm2s-channel" or
- compatible:
For VDMA: It should be either "xlnx,axi-vdma-mm2s-channel" or
"xlnx,axi-vdma-s2mm-channel".
For CDMA: It should be "xlnx,axi-cdma-channel".
For AXIDMA: It should be either "xlnx,axi-dma-mm2s-channel" or
"xlnx,axi-dma-s2mm-channel".
- interrupts: Should contain per channel VDMA interrupts.
- xlnx,datawidth: Should contain the stream data width, take values
{32,64...1024}.