linux-kernel - [PATCH 00/11] media: cedrus: Format handling improvements and 10-bit HEVC support

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Date:   Mon, 24 Oct 2022 22:15:04 +0200
From:   Jernej Skrabec <jernej.skrabec@...il.com>
To:     mripard@...nel.org, paul.kocialkowski@...tlin.com
Cc:     mchehab@...nel.org, gregkh@...uxfoundation.org, wens@...e.org,
        samuel@...lland.org, hverkuil-cisco@...all.nl,
        linux-media@...r.kernel.org, linux-staging@...ts.linux.dev,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org,
        Jernej Skrabec <jernej.skrabec@...il.com>
Subject: [PATCH 00/11] media: cedrus: Format handling improvements and 10-bit HEVC support

While my first intention was to just add 10-bit HEVC handling, I noticed
a few format handling issues and a bit of redundancy in some cases. Final
result is that driver now sticks to stateless decoder rules better.

Format handling improvements:
1. Default format selection is now based on HW capabilities. Before, MPEG2
   was hardcoded but some Cedrus variants don't actually support it.
2. Controls are registered only if related codec is supported by HW.
3. Untiled output format is preferred, if supported, over tiled one. All
   display engine cores support untiled format, but only first generation
   supports tiled one.

I hope this makes Cedrus eligible for destaging.

Best regards,
Jernej

Jernej Skrabec (11):
  media: cedrus: remove superfluous call
  media: cedrus: Add format reset helpers
  media: cedrus: use helper to set default formats
  media: cedrus: Add helper for checking capabilities
  media: cedrus: Filter controls based on capability
  media: cedrus: set codec ops immediately
  media: cedrus: Remove cedrus_codec enum
  media: cedrus: prefer untiled capture format
  media: cedrus: initialize controls a bit later
  media: cedrus: Adjust buffer size based on control values
  media: cedrus: h265: Support decoding 10-bit frames

 drivers/staging/media/sunxi/cedrus/cedrus.c   |  97 +++++-----
 drivers/staging/media/sunxi/cedrus/cedrus.h   |  22 +--
 .../staging/media/sunxi/cedrus/cedrus_dec.c   |   4 +-
 .../staging/media/sunxi/cedrus/cedrus_h264.c  |   2 +-
 .../staging/media/sunxi/cedrus/cedrus_h265.c  |  37 +++-
 .../staging/media/sunxi/cedrus/cedrus_hw.c    |  18 +-
 .../staging/media/sunxi/cedrus/cedrus_hw.h    |   2 +-
 .../staging/media/sunxi/cedrus/cedrus_mpeg2.c |   2 +-
 .../staging/media/sunxi/cedrus/cedrus_regs.h  |  16 ++
 .../staging/media/sunxi/cedrus/cedrus_video.c | 166 ++++++++++--------
 .../staging/media/sunxi/cedrus/cedrus_video.h |   2 +
 .../staging/media/sunxi/cedrus/cedrus_vp8.c   |   2 +-
 12 files changed, 225 insertions(+), 145 deletions(-)

--
2.38.1