linux-kernel - [PATCH 0/9] media: mtk-vcodec: vdec: support for MT8183

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Date:   Tue, 30 Jun 2020 15:27:02 +0900
From:   Alexandre Courbot <acourbot@...omium.org>
To:     Tiffany Lin <tiffany.lin@...iatek.com>,
        Andrew-CT Chen <andrew-ct.chen@...iatek.com>,
        Rui Wang <gtk_ruiwang@...iatek.com>,
        Yunfei Dong <yunfei.dong@...iatek.com>,
        Pi-Hsun Shih <pihsun@...omium.org>,
        Maoguang Meng <maoguang.meng@...iatek.com>
Cc:     linux-media@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-kernel@...r.kernel.org,
        Alexandre Courbot <acourbot@...omium.org>
Subject: [PATCH 0/9] media: mtk-vcodec: vdec: support for MT8183

This patch series adds support for the H.264 stateless decoder found in MT8183.
It depends on the MT8183 encoder support series [1] and should thus be applied
on top of it.

Contrary to MT8173 which is stateful, MT8183 is a stateless decoder. So the
first patches take care of splitting the stateful-relevant code into its own
source file, and to add support for the stateless API. Then support for sending
the H.264 decoder is added, taking advantage of the H.264 helper functions to
build the reference lists.

No regressions to v4l2-compliance have been introduced by this series for
MT8173, and we could also confirm that decoding was still working as expected
on this chip. Following this series will be another one that fixes the remaining
v4l2-compliance issues for both encoder and decoder.

[1] https://lkml.org/lkml/2020/6/26/152

Alexandre Courbot (4):
  media: mtk-vcodec: vdec: handle firmware version field
  media: mtk-vcodec: support version 2 of decoder firmware ABI
  media: add Mediatek's MM21 format
  dt-bindings: media: document mediatek,mt8183-vcodec-dec

Yunfei Dong (5):
  media: mtk-vcodec: vdec: move stateful ops into their own file
  media: mtk-vcodec: vdec: support stateless API
  media: mtk-vcodec: vdec: support stateless H.264 decoding
  media: mtk-vcodec: vdec: add media device if using stateless api
  media: mtk-vcodec: enable MT8183 decoder

 .../bindings/media/mediatek-vcodec.txt        |   1 +
 drivers/media/platform/Kconfig                |   2 +
 drivers/media/platform/mtk-vcodec/Makefile    |   3 +
 .../platform/mtk-vcodec/mtk_vcodec_dec.c      | 763 +++--------------
 .../platform/mtk-vcodec/mtk_vcodec_dec.h      |  28 +-
 .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c  |  54 +-
 .../mtk-vcodec/mtk_vcodec_dec_stateful.c      | 634 ++++++++++++++
 .../mtk-vcodec/mtk_vcodec_dec_stateless.c     | 469 ++++++++++
 .../platform/mtk-vcodec/mtk_vcodec_drv.h      |  50 ++
 .../mtk-vcodec/vdec/vdec_h264_req_if.c        | 802 ++++++++++++++++++
 .../media/platform/mtk-vcodec/vdec_drv_if.c   |   3 +
 .../media/platform/mtk-vcodec/vdec_drv_if.h   |   1 +
 .../media/platform/mtk-vcodec/vdec_ipi_msg.h  |  23 +-
 .../media/platform/mtk-vcodec/vdec_vpu_if.c   |  43 +-
 .../media/platform/mtk-vcodec/vdec_vpu_if.h   |   5 +
 drivers/media/v4l2-core/v4l2-ioctl.c          |   1 +
 include/uapi/linux/videodev2.h                |   1 +
 17 files changed, 2226 insertions(+), 657 deletions(-)
 create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c
 create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c
 create mode 100644 drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c

--
2.27.0.212.ge8ba1cc988-goog