[GIT PULL] imx-drm cleanups and YUV 4:2:0 memory read/write reduction support

[GIT PULL] imx-drm cleanups and YUV 4:2:0 memory read/write reduction support

[Philipp Zabel]

Hi Dave,

This tag contains a few cleanup patches, and adds support for setting a
bit in the channel parameter memory to stop the IPU from writing the
chroma lines twice for YUV420 and NV12 formats.

regards
Philipp


The following changes since commit 2ea659a9ef488125eb46da6eb571de5eae5c43f6:

  Linux 4.12-rc1 (2017-05-13 13:19:49 -0700)

are available in the git repository at:

  git://git.pengutronix.de/git/pza/linux.git tags/imx-drm-next-2017-06-08

for you to fetch changes up to add1318723a0d7b1ec974d2d9ba309cc24bb298a:

  gpu: ipu-v3: vdic: include AUTO field order bit in ipu_vdi_set_field_order (2017-06-08 08:57:20 +0200)

----------------------------------------------------------------
imx-drm: cleanups and YUV 4:2:0 memory read/write reduction support

- Remove counter load enable form PRE, which has no effect.
- Add support for setting the double read/write reduction flag in channel
  parameter memory. This can be used to save some memory bandwidth when
  capturing in YUV 4:2:0 chroma subsampled formats.
- Allocate DMA channel structures as needed, most of the 64 channels are
  unused or even reserved.
- Remove unused interrupt busy waiting routine.
- Set VDIC field order for both AUTO and MAN inputs simultaneously as
  both can't be active at the same time.

----------------------------------------------------------------
Lucas Stach (1):
      gpu: ipu-v3: prg: remove counter load enable

Philipp Zabel (3):
      gpu: ipu-v3: Add support for double read/write reduction
      gpu: ipu-v3: allocate ipuv3_channels as needed
      gpu: ipu-v3: remove interrupt busy waiting routine

Steve Longerbeam (1):
      gpu: ipu-v3: vdic: include AUTO field order bit in ipu_vdi_set_field_order

 drivers/gpu/ipu-v3/ipu-common.c | 39 +++++++++++++++------------------------
 drivers/gpu/ipu-v3/ipu-cpmem.c  |  6 ++++++
 drivers/gpu/ipu-v3/ipu-prg.c    |  2 --
 drivers/gpu/ipu-v3/ipu-prv.h    |  9 ++-------
 drivers/gpu/ipu-v3/ipu-vdi.c    |  4 ++--
 include/video/imx-ipu-v3.h      |  1 +
 6 files changed, 26 insertions(+), 35 deletions(-)
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