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 <bharat.kumar.gogada@xilinx.com> Signed-off-by:
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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