linux-kernel - [PATCH v7 0/8] [PATCH v7 0/8] Add V4L2 M2M Driver for E5010 JPEG Encoder

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Date: Fri, 10 May 2024 00:08:49 +0530
From: Devarsh Thakkar <devarsht@...com>
To: <mchehab@...nel.org>, <robh@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <hverkuil-cisco@...all.nl>, <linux-media@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <benjamin.gaignard@...labora.com>, <sebastian.fricke@...labora.com>
CC: <laurent.pinchart@...asonboard.com>, <praneeth@...com>, <nm@...com>,
        <vigneshr@...com>, <a-bhatia1@...com>, <j-luthra@...com>,
        <b-brnich@...com>, <detheridge@...com>, <p-mantena@...com>,
        <vijayp@...com>, <devarsht@...com>, <andrzej.p@...labora.com>,
        <nicolas@...fresne.ca>, <akpm@...ux-foundation.org>,
        <gregkh@...uxfoundation.org>, <andriy.shevchenko@...ux.intel.com>,
        <adobriyan@...il.com>, <p.zabel@...gutronix.de>, <airlied@...il.com>,
        <daniel@...ll.ch>, <jani.nikula@...el.com>,
        <linux-rockchip@...ts.infradead.org>
Subject: [PATCH v7 0/8] [PATCH v7 0/8] Add V4L2 M2M Driver for E5010 JPEG Encoder

This adds support for V4L2 M2M based driver for E5010 JPEG Encoder
which is a stateful JPEG encoder from Imagination technologies
and is present in TI AM62A SoC.

While adding support for it, following additional framework changes were
made:
 - Moved reference quantization and huffman tables provided in
   ITU-T-REC-T.81 to v4l2-jpeg.c as suggested in mailing list [1].
 - Add macros to round to closest integer (either higher or lower) while
   rounding in order of 2.

v4l2-compliance test :
Link: https://gist.github.com/devarsht/1f039c631ca953a57f405cfce1b69e49

E5010 JPEG Encoder Manual tests :

Performance:
Link: https://gist.github.com/devarsht/c40672944fd71c9a53ab55adbfd9e28b

Functionality:
Link: https://gist.github.com/devarsht/8e88fcaabff016bb2bac83d89c9d23ce

Compression Quality:
Link: https://gist.github.com/devarsht/cbcc7cd97e8c48ba1486caa2b7884655

Multi Instance:
Link: https://gist.github.com/devarsht/22c2fca08cd3441fb40f2c7a4cebc95a

Crop support:
Link: https://gist.github.com/devarsht/de6f5142f678bb1a5338abfd9f814abd

Runtime PM:
Link: https://gist.github.com/devarsht/70cd95d4440ddc678489d93885ddd4dd

[1]: 
https://lore.kernel.org/all/de46aefe-36da-4e1a-b4fa-b375b2749181@xs4all.nl/

Changelog:
V6->V7:
 - Fix cropping support
 - Move reference huffman and quantization tables to v4l2-jpeg.c
 - Fix suspend/resume use-case

Patch-Diff between the series :

V3->V4 Range diff :
https://gist.github.com/devarsht/22a744d999080de6e813bcfb5a596272

V4->V5 Range diff :
https://gist.github.com/devarsht/298790af819f299a0a05fec89371097b

V5->V6 Range diff :
https://gist.github.com/devarsht/c89180ac2b0d2814614f2b59d0705c19

V6->V7 Range diff :
https://gist.github.com/devarsht/1db185b1e187eaf397e9e4c37066777e

Previous patch series:
V2: https://lore.kernel.org/all/20230727112546.2201995-1-devarsht@ti.com/
V3: https://lore.kernel.org/all/20230816152210.4080779-1-devarsht@ti.com/
V4: https://lore.kernel.org/all/20240205114239.924697-1-devarsht@ti.com/
V5: https://lore.kernel.org/all/20240215134641.3381478-1-devarsht@ti.com/
V6: https://lore.kernel.org/all/20240228141140.3530612-1-devarsht@ti.com/

Devarsh Thakkar (8):
  media: dt-bindings: Add Imagination E5010 JPEG Encoder
  media: imagination: Add E5010 JPEG Encoder driver
  media: v4l2-jpeg: Export reference quantization and huffman tables
  media: imagination: Use exported tables from v4l2-jpeg core
  media: verisilcon : Use exported tables from v4l2-jpeg for hantro
    codec
  math.h Add macros to round to closest specified power of 2
  media: imagination: Round to closest multiple for cropping region
  gpu: ipu-v3: Use generic macro for rounding to nearest multiple

 .../bindings/media/img,e5010-jpeg-enc.yaml    |   75 +
 MAINTAINERS                                   |    7 +
 drivers/gpu/ipu-v3/ipu-image-convert.c        |    4 +-
 drivers/media/platform/Kconfig                |    1 +
 drivers/media/platform/Makefile               |    1 +
 drivers/media/platform/imagination/Kconfig    |   12 +
 drivers/media/platform/imagination/Makefile   |    3 +
 .../platform/imagination/e5010-core-regs.h    |  585 ++++++
 .../platform/imagination/e5010-jpeg-enc-hw.c  |  267 +++
 .../platform/imagination/e5010-jpeg-enc-hw.h  |   42 +
 .../platform/imagination/e5010-jpeg-enc.c     | 1646 +++++++++++++++++
 .../platform/imagination/e5010-jpeg-enc.h     |  168 ++
 .../platform/imagination/e5010-mmu-regs.h     |  311 ++++
 .../media/platform/verisilicon/hantro_jpeg.c  |  128 +-
 drivers/media/v4l2-core/v4l2-jpeg.c           |  162 +-
 include/linux/math.h                          |   36 +
 include/media/v4l2-jpeg.h                     |   11 +
 17 files changed, 3341 insertions(+), 118 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/img,e5010-jpeg-enc.yaml
 create mode 100644 drivers/media/platform/imagination/Kconfig
 create mode 100644 drivers/media/platform/imagination/Makefile
 create mode 100644 drivers/media/platform/imagination/e5010-core-regs.h
 create mode 100644 drivers/media/platform/imagination/e5010-jpeg-enc-hw.c
 create mode 100644 drivers/media/platform/imagination/e5010-jpeg-enc-hw.h
 create mode 100644 drivers/media/platform/imagination/e5010-jpeg-enc.c
 create mode 100644 drivers/media/platform/imagination/e5010-jpeg-enc.h
 create mode 100644 drivers/media/platform/imagination/e5010-mmu-regs.h

-- 
2.39.1