mbox series

[v3,0/6] dma: Add Xilinx ZynqMP DPDMA driver

Message ID 20200123022939.9739-1-laurent.pinchart@ideasonboard.com (mailing list archive)
Headers show
Series dma: Add Xilinx ZynqMP DPDMA driver | expand

Message

Laurent Pinchart Jan. 23, 2020, 2:29 a.m. UTC 
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 most notable changes are

- Introduction of a new DMA transfer type that combines interleaved and
  cyclic tranfers (patch 2/6, suggested by Vinod)

- Switch to virt-dma (including a drive-by lockdep addition to virt-dma
  in patch 3/6)

- Removal of all non-interleaved, non-cyclic transfer types, as I have
  currently no way to test them given how the IP core is integrated in
  the hardware. Support for non-interleaved cyclic transfers may be
  added later for audio.

The driver has been successfully tested with the ZynqMP DisplayPort
subsystem DRM driver.

Vinod, please let me know if you would like authorship of patch 2/6 to
be assigned to you, in which case I will need your SoB line.

[1] https://lore.kernel.org/dmaengine/20191107021400.16474-1-laurent.pinchart@ideasonboard.com/

Hyun Kwon (1):
  dmaengine: xilinx: dpdma: Add the Xilinx DisplayPort DMA engine driver

Laurent Pinchart (5):
  dt: bindings: dma: xilinx: dpdma: DT bindings for Xilinx DPDMA
  dmaengine: Add interleaved cyclic transaction type
  dmaengine: virt-dma: Use lockdep to check locking requirements
  dmaengine: xilinx: dpdma: Add debugfs support
  arm64: dts: zynqmp: Add DPDMA node

 .../dma/xilinx/xlnx,zynqmp-dpdma.yaml         |   68 +
 MAINTAINERS                                   |    9 +
 arch/arm64/boot/dts/xilinx/zynqmp-clk.dtsi    |    4 +
 arch/arm64/boot/dts/xilinx/zynqmp.dtsi        |   10 +
 drivers/dma/Kconfig                           |   10 +
 drivers/dma/dmaengine.c                       |    8 +-
 drivers/dma/virt-dma.c                        |    2 +
 drivers/dma/virt-dma.h                        |   14 +
 drivers/dma/xilinx/Makefile                   |    1 +
 drivers/dma/xilinx/xilinx_dpdma.c             | 1754 +++++++++++++++++
 include/dt-bindings/dma/xlnx-zynqmp-dpdma.h   |   16 +
 include/linux/dmaengine.h                     |   18 +
 12 files changed, 1913 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


base-commit: d1eef1c619749b2a57e514a3fa67d9a516ffa919