PCI: xilinx-nwl: Add optional "dma-coherent" property

Add optional dma-coherent property to support coherent PCIe DMA traffic. Signed-off-by: Bharat Kumar Gogada <[email protected]>
lbl96 · Apr 15, 2021 · d5811cc · d5811cc
1 parent 1cef7ee
commit d5811cc
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt b/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt
@@ -34,6 +34,8 @@ Required properties:
 	- #address-cells: specifies the number of cells needed to encode an
 		address. The value must be 0.
 
+Optional properties:
+- dma-coherent: present if DMA operations are coherent
 
 Example:
 ++++++++