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2019-01-31media: cedrus: Remove completed item from TODO list (dma-buf references)Paul Kocialkowski1-5/+0
Access to reference frames that were imported from dma-buf was taken care of and is no longer a pending item on the driver's TODO list. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-20media: cedrus: add action item to the TODOHans Verkuil1-0/+5
Mention that the request validation should increment the memory refcount of reference buffers so we don't forget to do this. Acked-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-09-24media: platform: Add Cedrus VPU decoder driverPaul Kocialkowski1-0/+7
This introduces the Cedrus VPU driver that supports the VPU found in Allwinner SoCs, also known as Video Engine. It is implemented through a V4L2 M2M decoder device and a media device (used for media requests). So far, it only supports MPEG-2 decoding. Since this VPU is stateless, synchronization with media requests is required in order to ensure consistency between frame headers that contain metadata about the frame to process and the raw slice data that is used to generate the frame. This driver was made possible thanks to the long-standing effort carried out by the linux-sunxi community in the interest of reverse engineering, documenting and implementing support for the Allwinner VPU. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> [hans.verkuil@cisco.com: dropped obsolete MEDIA_REQUEST_API from Kconfig] Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

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