[PATCH v6 0/5] media: imx-jpeg: Fix some motion-jpeg decoding issues

[ming.qian at oss.nxp.com]

From: Ming Qian <ming.qian at oss.nxp.com>

To support decoding motion-jpeg without DHT, driver will try to decode a
pattern jpeg before actual jpeg frame by use of linked descriptors
(This is called "repeat mode"), then the DHT in the pattern jpeg can be
used for decoding the motion-jpeg.

But there is some hardware limitation in the repeat mode, that may cause
corruption or decoding timeout.

Try to make workaround for these limitation in this patchset.

Changelog:
v6
- Improve commit message
- Add Fixes tag

v5
- Split the resetting pointers when freed to a separate patch

v4:
- Improve commit message

v3:
- Read the slot_status register twice
- Improve commit message
- Split the moving of code into a separate patch

v2:
- Add the Fixes tag
- Improve commit message

Ming Qian (5):
  media: imx-jpeg: Move mxc_jpeg_free_slot_data() ahead
  media: imx-jpeg: Reset slot data pointers when freed
  media: imx-jpeg: Cleanup after an allocation error
  media: imx-jpeg: Change the pattern size to 128x64
  media: imx-jpeg: Check decoding is ongoing for motion-jpeg

 .../media/platform/nxp/imx-jpeg/mxc-jpeg-hw.h |   1 +
 .../media/platform/nxp/imx-jpeg/mxc-jpeg.c    | 120 +++++++++++++-----
 .../media/platform/nxp/imx-jpeg/mxc-jpeg.h    |   5 +
 3 files changed, 97 insertions(+), 29 deletions(-)

-- 
2.43.0-rc1