[media] media: coda: allocate internal framebuffers separately from v4l2 buffers

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Some codecs running on CODA need internal framebuffers for reference and
reconstructed frames. Allocate them separately, and do not use the input
vb2_buffers: those will be handed off to userspace regularly, and there
is no way to signal to the CODA which of the registered framebuffers are
off limits. As a consequence, userspace is now free to choose the number
of v4l2 buffers.
This patch also includes the code to set up the parameter buffer for
CODA7 and above with 64-bit AXI bus width.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Reviewed-by: Javier Martin <javier.martin@vista-silicon.com>
Tested-by: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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Philipp Zabel 2012-07-20 08:54:29 -03:00 • committed by Mauro Carvalho Chehab

parent 1043667b17

commit ec25f68d53

1 changed files with 86 additions and 55 deletions

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drivers/media/platform/coda.c

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