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Date: Tue, 9 Feb 2021 15:49:55 +0530
From: Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
To: <linux-pci@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC: <bhelgaas@...gle.com>,
Bharat Kumar Gogada <bharat.kumar.gogada@...inx.com>
Subject: [PATCH 2/2] 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 <bharat.kumar.gogada@...inx.com>
---
Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt | 2 ++
1 file changed, 2 insertions(+)
diff --git a/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt b/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt
index 01bf7fdf4c19..2d677e90a7e2 100644
--- a/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt
@@ -33,6 +33,8 @@ 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:
++++++++
--
2.17.1
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