[v7,00/28] Allwinner A31/A83T MIPI CSI-2 and A31 ISP / CSI Rework

This part only concerns the rework of the CSI driver to support the MIPI CSI-2
and ISP workflows.

Every patch was reviewed at this point and the whole thing looks good to go.
Since this multi-part series has been going on for a while, it would be great
to see it merged soon!

Changes since v6:
- Removed merged patches;
- Added collected tags;
- Rebased on the latest media tree;
- Followed media/video pipeline helpers changes.

Changes since v5:
- Rebased on latest media tree;
- Switched to using media_pad_remote_pad_first;
- Switched to using media_pad_remote_pad_unique;
- Declared variant const to avoid a warning.

Changes since v4:
- Removed the v4l2 controls handler from the driver;
- Removed the info message about video device registration;
- Fixed "literature" typos;
- Moved patches dependent on the ISP driver to its dedicated series;
- Rebased on the latest media tree;
- Added collected tags;

Changes since v3:
- Updated Kconfig to follow the latest media-wide changes;
- Rebased on latest changes to the driver (JPEG/sRGB colorspaces);
- Added helper to get a single enabled link for an entity's pad, to replace
  source selection at link_validate time and select the remote source at
  stream on time instead;
- Kept clock-managed regmap mmio;
- Added collected review tags;
- Various cosmetic cleanups;

Changes since all-in-one v2:
- Reworked capture video device registration, which stays in the main path.
- Reworked async subdev handling with a dedicated structure holding the
  corresponding source to avoid matching in the driver;
- Added mutex for mbus format serialization;
- Remove useless else in link_validate;
- Reworked commit logs to include missing information;
- Cleaned up Kconfig, added PM dependency;
- Moved platform-specific clock rate to of match data;
- Added collected Reviewed-by tags;
- Updated copyright years;

Paul Kocialkowski (28):
  media: sun6i-csi: Add bridge v4l2 subdev with port management
  media: sun6i-csi: Rename sun6i_video to sun6i_csi_capture
  media: sun6i-csi: Add capture state using vsync for page flip
  media: sun6i-csi: Rework register definitions, invert misleading
    fields
  media: sun6i-csi: Add dimensions and format helpers to capture
  media: sun6i-csi: Implement address configuration without indirection
  media: sun6i-csi: Split stream sequences and irq code in capture
  media: sun6i-csi: Move power management to runtime pm in capture
  media: sun6i-csi: Move register configuration to capture
  media: sun6i-csi: Rework capture format management with helper
  media: sun6i-csi: Remove custom format helper and rework configure
  media: sun6i-csi: Add bridge dimensions and format helpers
  media: sun6i-csi: Get mbus code from bridge instead of storing it
  media: sun6i-csi: Tidy capture configure code
  media: sun6i-csi: Introduce bridge format structure, list and helper
  media: sun6i-csi: Introduce capture format structure, list and helper
  media: sun6i-csi: Configure registers from format tables
  media: sun6i-csi: Introduce format match structure, list and helper
  media: sun6i-csi: Implement capture link validation with logic
  media: sun6i-csi: Get bridge subdev directly in capture stream ops
  media: sun6i-csi: Move hardware control to the bridge
  media: sun6i-csi: Rename the capture video device to sun6i-csi-capture
  media: sun6i-csi: Cleanup headers and includes, update copyright lines
  media: sun6i-csi: Add support for MIPI CSI-2 to the bridge code
  media: sun6i-csi: Only configure capture when streaming
  media: sun6i-csi: Add extra checks to the interrupt routine
  media: sun6i-csi: Request a shared interrupt
  MAINTAINERS: Add myself as sun6i-csi maintainer and rename/move entry

 MAINTAINERS                                   |   17 +-
 .../media/platform/sunxi/sun6i-csi/Makefile   |    2 +-
 .../platform/sunxi/sun6i-csi/sun6i_csi.c      |  751 +-----------
 .../platform/sunxi/sun6i-csi/sun6i_csi.h      |  141 +--
 .../sunxi/sun6i-csi/sun6i_csi_bridge.c        |  844 +++++++++++++
 .../sunxi/sun6i-csi/sun6i_csi_bridge.h        |   69 ++
 .../sunxi/sun6i-csi/sun6i_csi_capture.c       | 1089 +++++++++++++++++
 .../sunxi/sun6i-csi/sun6i_csi_capture.h       |   88 ++
 .../platform/sunxi/sun6i-csi/sun6i_csi_reg.h  |  362 +++---
 .../platform/sunxi/sun6i-csi/sun6i_video.c    |  733 -----------
 .../platform/sunxi/sun6i-csi/sun6i_video.h    |   35 -
 11 files changed, 2338 insertions(+), 1793 deletions(-)
 create mode 100644 drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_bridge.c
 create mode 100644 drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_bridge.h
 create mode 100644 drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.c
 create mode 100644 drivers/media/platform/sunxi/sun6i-csi/sun6i_csi_capture.h
 delete mode 100644 drivers/media/platform/sunxi/sun6i-csi/sun6i_video.c
 delete mode 100644 drivers/media/platform/sunxi/sun6i-csi/sun6i_video.h