Re: [PATCH v8 4/8] media: platform: Add Cedrus VPU decoder driver
From: Maxime Ripard
Date: Tue Aug 28 2018 - 10:56:36 EST
On Tue, Aug 28, 2018 at 09:34:20AM +0200, Paul Kocialkowski wrote:
> 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 MPEG2 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 Allwinner VPU.
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx>
Acked-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxx>
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
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