From 1c4422f22605ec0f4455400c52a31898edcda425 Mon Sep 17 00:00:00 2001 From: Bharat Kumar Gogada Date: Mon, 22 Feb 2021 14:17:32 +0530 Subject: PCI: xilinx-nwl: Add optional "dma-coherent" property Add optional dma-coherent property to support coherent PCIe DMA traffic. Link: https://lore.kernel.org/r/20210222084732.21521-2-bharat.kumar.gogada@xilinx.com Signed-off-by: Bharat Kumar Gogada Signed-off-by: Lorenzo Pieralisi --- Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation/devicetree/bindings/pci') 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: ++++++++ -- cgit v1.2.3