Hello, This patch series adds a new driver for the DPDMA engine found in the Xilinx ZynqMP. The previous version can be found at [1]. All review comments have been taken into account. The main changes are in the DPDMA driver, with cleanups in the debugfs support, and handling of the !LOAD_EOT case when preparing transactions. The driver has been successfully tested with the ZynqMP DisplayPort subsystem DRM driver. As I would like to merge both this series and the DRM driver that depends on it for v5.9 (if still possible), I have based those patches on top of v5.8-rc1. There's unfortunately a conflict with the DMA engine next branch, which is easy to resolve. Vinod, if you're fine with the series, I can propose two ways forward: - You can apply the patches on top of v5.8-rc1, push that to a base branch, merge it into the dmaengine -next branch, and push the base branch to a public git tree to let me base the DRM driver on it. - I can perform that work if you give me a Reviewed-by tag for the series (at for patches 2/5 to 4/5), providing you with two signed tags, one for the base branch and one for the merged branch. You could then just pull the merged branch (please make sure not to rebase it or otherwise modify it in that case). What's your preference ? [1] https://lore.kernel.org/dmaengine/20200708201906.4546-1-laurent.pinchart@xxxxxxxxxxxxxxxx/ Hyun Kwon (1): dmaengine: xilinx: dpdma: Add the Xilinx DisplayPort DMA engine driver Laurent Pinchart (4): dt: bindings: dma: xilinx: dpdma: DT bindings for Xilinx DPDMA dmaengine: Add support for repeating transactions dmaengine: xilinx: dpdma: Add debugfs support arm64: dts: zynqmp: Add DPDMA node .../dma/xilinx/xlnx,zynqmp-dpdma.yaml | 68 + Documentation/driver-api/dmaengine/client.rst | 4 +- .../driver-api/dmaengine/provider.rst | 49 + MAINTAINERS | 9 + .../arm64/boot/dts/xilinx/zynqmp-clk-ccf.dtsi | 4 + arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 10 + drivers/dma/Kconfig | 10 + drivers/dma/xilinx/Makefile | 1 + drivers/dma/xilinx/xilinx_dpdma.c | 1771 +++++++++++++++++ include/dt-bindings/dma/xlnx-zynqmp-dpdma.h | 16 + include/linux/dmaengine.h | 17 + 11 files changed, 1958 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/dma/xilinx/xlnx,zynqmp-dpdma.yaml create mode 100644 drivers/dma/xilinx/xilinx_dpdma.c create mode 100644 include/dt-bindings/dma/xlnx-zynqmp-dpdma.h -- Regards, Laurent Pinchart
