media: staging/intel-ipu3: parameter buffer refactoring

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Current ImgU driver processes and releases the parameter buffer
immediately after queued from user. This does not align with other
image buffers which are grouped in sets and used for the same frame.
If user queues multiple parameter buffers continuously, only the last
one will take effect.
To make consistent buffers usage, this patch changes the parameter
buffer handling and group parameter buffer with other image buffers
for each frame.
Each time driver will queue one more group of buffers when previous
frame processed and buffers consumed by css.

Signed-off-by: Tianshu Qiu <tian.shu.qiu@intel.com>
Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

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Bingbu Cao 2019-03-22 07:14:45 -04:00 • committed by Mauro Carvalho Chehab

parent 642bb5e88f

commit 8ecc7c9da0

3 changed files with 46 additions and 35 deletions

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5

drivers/staging/media/ipu3/ipu3-css.c

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52

drivers/staging/media/ipu3/ipu3-v4l2.c

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30

drivers/staging/media/ipu3/ipu3.c

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