[PATCH v2 00/13] Xilinx Video IP Core support

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Hello,

Here's the second version of the Xilinx FPGA Video IP Cores kernel drivers.

I won't detail in great lengths the Xilinx Video IP architecture here, as that
would result in dozens of pages of documentation. The interested reader can
refer to the Zynq ZC702 Base TRD (Targeted Reference Design) User Guide
(http://www.xilinx.com/support/documentation/boards_and_kits/zc702_zvik/2014_2/ug925-zynq-zc702-base-trd.pdf).

In a nutshell, the Xilinx Video IP Cores architecture specifies how
video-related IP cores need to be designed to interoperate and how to assemble
them in pipelines of various complexities. The concepts map neatly to the
media controller architecture, which this patch set uses extensively.

The series starts with various new V4L2 core features, bug fixes or cleanups,
with a small documentation enhancement (01/13), the addition of new media bus
formats needed by the new drivers (02/13 to 04/13) and a new V4L2 OF link
parsing function (05/13).

The next two patches (06/13 and 07/13) fix two race conditions in videobuf2.
They could be applied seperately from this series as they're not specific to
Xilinx drivers.

The next three patches (08/13 to 10/13) fix bugs in the Xilinx Video DMA
driver. They are required as a runtime dependency but will not break
compilation. I will submit a separate pull request for them through the DMA
engine tree.

The last three patches are the core of this series.

Patch 11/13 adds support for the Xilinx Video IP architecture core in the form
of a base object to model video IP cores (xilinx-vip.c - Video IP), a
framework that parses a DT representation of a video pipeline and connects the
corresponding V4L2 subdevices together (xilinx-vipp.c - Video IP Pipeline) and
a glue between the Video DMA engine driver and the V4L2 API (xilinx-dma.c).

Patch 12/13 adds a driver for the Video Timing Controller (VTC) IP core. While
not strictly a video processing IP core, the VTC is required by other video IP
core drivers.

Finally, patch 13/13 adds a first video IP core driver for the Test Pattern
Generator (TPG). Drivers for other IP cores will be added in the future.

Cc: devicetree@xxxxxxxxxxxxxxx

Hyun Kwon (2):
  v4l: Sort YUV formats of v4l2_mbus_pixelcode
  v4l: Add VUY8 24 bits bus format

Laurent Pinchart (8):
  media: entity: Document the media_entity_ops structure
  v4l: Add RBG and RGB 8:8:8 media bus formats on 24 and 32 bit busses
  v4l: of: Add v4l2_of_parse_link() function
  v4l: vb2: Fix race condition in vb2_fop_poll
  v4l: vb2: Fix race condition in _vb2_fop_release
  v4l: xilinx: Add Xilinx Video IP core
  v4l: xilinx: Add Video Timing Controller driver
  v4l: xilinx: Add Test Pattern Generator driver

Srikanth Thokala (3):
  dma: xilinx: vdma: Check if the segment list is empty in a descriptor
  dma: xilinx: vdma: Allow only one chunk in a line
  dma: xilinx: vdma: icg should be difference of stride and hsize

 Documentation/DocBook/media/v4l/subdev-formats.xml | 719 +++++++++-------
 .../devicetree/bindings/media/xilinx/video.txt     |  52 ++
 .../devicetree/bindings/media/xilinx/xlnx,v-tc.txt |  33 +
 .../bindings/media/xilinx/xlnx,v-tpg.txt           |  68 ++
 .../bindings/media/xilinx/xlnx,video.txt           |  55 ++
 MAINTAINERS                                        |  10 +
 drivers/dma/xilinx/xilinx_vdma.c                   |  13 +-
 drivers/media/platform/Kconfig                     |   1 +
 drivers/media/platform/Makefile                    |   2 +
 drivers/media/platform/xilinx/Kconfig              |  23 +
 drivers/media/platform/xilinx/Makefile             |   5 +
 drivers/media/platform/xilinx/xilinx-dma.c         | 770 +++++++++++++++++
 drivers/media/platform/xilinx/xilinx-dma.h         | 109 +++
 drivers/media/platform/xilinx/xilinx-tpg.c         | 921 +++++++++++++++++++++
 drivers/media/platform/xilinx/xilinx-vip.c         | 269 ++++++
 drivers/media/platform/xilinx/xilinx-vip.h         | 227 +++++
 drivers/media/platform/xilinx/xilinx-vipp.c        | 669 +++++++++++++++
 drivers/media/platform/xilinx/xilinx-vipp.h        |  49 ++
 drivers/media/platform/xilinx/xilinx-vtc.c         | 386 +++++++++
 drivers/media/platform/xilinx/xilinx-vtc.h         |  42 +
 drivers/media/v4l2-core/v4l2-of.c                  |  61 ++
 drivers/media/v4l2-core/videobuf2-core.c           |  35 +-
 include/media/media-entity.h                       |   9 +
 include/media/v4l2-of.h                            |  27 +
 include/uapi/linux/Kbuild                          |   1 +
 include/uapi/linux/v4l2-mediabus.h                 |  19 +-
 include/uapi/linux/xilinx-v4l2-controls.h          |  73 ++
 27 files changed, 4302 insertions(+), 346 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/xilinx/video.txt
 create mode 100644 Documentation/devicetree/bindings/media/xilinx/xlnx,v-tc.txt
 create mode 100644 Documentation/devicetree/bindings/media/xilinx/xlnx,v-tpg.txt
 create mode 100644 Documentation/devicetree/bindings/media/xilinx/xlnx,video.txt
 create mode 100644 drivers/media/platform/xilinx/Kconfig
 create mode 100644 drivers/media/platform/xilinx/Makefile
 create mode 100644 drivers/media/platform/xilinx/xilinx-dma.c
 create mode 100644 drivers/media/platform/xilinx/xilinx-dma.h
 create mode 100644 drivers/media/platform/xilinx/xilinx-tpg.c
 create mode 100644 drivers/media/platform/xilinx/xilinx-vip.c
 create mode 100644 drivers/media/platform/xilinx/xilinx-vip.h
 create mode 100644 drivers/media/platform/xilinx/xilinx-vipp.c
 create mode 100644 drivers/media/platform/xilinx/xilinx-vipp.h
 create mode 100644 drivers/media/platform/xilinx/xilinx-vtc.c
 create mode 100644 drivers/media/platform/xilinx/xilinx-vtc.h
 create mode 100644 include/uapi/linux/xilinx-v4l2-controls.h

-- 
Regards,

Laurent Pinchart

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