linux-kernel - Re: [PATCH v4 0/5] Add support for video hardware codec of STMicroelectronics STM32 SoC series

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Date: Wed, 20 Dec 2023 11:37:14 -0500
From: Nicolas Dufresne <nicolas.dufresne@...labora.com>
To: Hugues Fruchet <hugues.fruchet@...s.st.com>, Ezequiel Garcia
 <ezequiel@...guardiasur.com.ar>, Philipp Zabel <p.zabel@...gutronix.de>, 
 Andrzej Pietrasiewicz <andrzej.p@...labora.com>, Sakari Ailus
 <sakari.ailus@...ux.intel.com>, Benjamin Gaignard
 <benjamin.gaignard@...labora.com>, Laurent Pinchart
 <laurent.pinchart+renesas@...asonboard.com>, Daniel Almeida
 <daniel.almeida@...labora.com>, Benjamin Mugnier
 <benjamin.mugnier@...s.st.com>,  Heiko Stuebner <heiko@...ech.de>, Mauro
 Carvalho Chehab <mchehab@...nel.org>, Hans Verkuil <hverkuil@...all.nl>,
 linux-media@...r.kernel.org, Maxime Coquelin <mcoquelin.stm32@...il.com>,
 Alexandre Torgue <alexandre.torgue@...s.st.com>, 
 linux-stm32@...md-mailman.stormreply.com, Rob Herring <robh+dt@...nel.org>,
  Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley
 <conor+dt@...nel.org>, devicetree@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 linux-rockchip@...ts.infradead.org
Cc: Marco Felsch <m.felsch@...gutronix.de>, Adam Ford <aford173@...il.com>
Subject: Re: [PATCH v4 0/5] Add support for video hardware codec of
 STMicroelectronics STM32 SoC series

Le mercredi 20 décembre 2023 à 16:27 +0100, Hugues Fruchet a écrit :
> This patchset introduces support for VDEC video hardware decoder
> and VENC video hardware encoder of STMicroelectronics STM32MP25
> SoC series.
> 
> This initial support implements H264 decoding, VP8 decoding and
> JPEG encoding.
> 
> This has been tested on STM32MP257F-EV1 evaluation board.
> 
> ===========
> = history =
> ===========
> version 4:
>    - Fix comments from Nicolas about dropping encoder raw steps

As discussed in chat, The 4K resolution didn't work correctly, so all the
resolution have been set back to 1080p.

> 
> version 3:
>    - Fix remarks from Krzysztof Kozlowski:
>     - drop "items", we keep simple enum in such case
>     - drop second example - it is the same as the first
>    - Drop unused node labels as suggested by Conor Dooley
>    - Revisit min/max resolutions as suggested by Nicolas Dufresne
> 
> version 2:
>    - Fix remarks from Krzysztof Kozlowski on v1:
>     - single video-codec binding for both VDEC/VENC
>     - get rid of "-names"
>     - use of generic node name "video-codec"
> 
> version 1:
>   - Initial submission
> 
> Hugues Fruchet (5):
>   dt-bindings: media: Document STM32MP25 VDEC & VENC video codecs
>   media: hantro: add support for STM32MP25 VDEC
>   media: hantro: add support for STM32MP25 VENC
>   arm64: dts: st: add video decoder support to stm32mp255
>   arm64: dts: st: add video encoder support to stm32mp255
> 
>  .../media/st,stm32mp25-video-codec.yaml       |  50 ++++++++
>  arch/arm64/boot/dts/st/stm32mp251.dtsi        |  12 ++
>  arch/arm64/boot/dts/st/stm32mp255.dtsi        |  17 +++
>  drivers/media/platform/verisilicon/Kconfig    |  14 ++-
>  drivers/media/platform/verisilicon/Makefile   |   4 +
>  .../media/platform/verisilicon/hantro_drv.c   |   4 +
>  .../media/platform/verisilicon/hantro_hw.h    |   2 +
>  .../platform/verisilicon/stm32mp25_vdec_hw.c  |  92 ++++++++++++++
>  .../platform/verisilicon/stm32mp25_venc_hw.c  | 115 ++++++++++++++++++
>  9 files changed, 307 insertions(+), 3 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/media/st,stm32mp25-video-codec.yaml
>  create mode 100644 drivers/media/platform/verisilicon/stm32mp25_vdec_hw.c
>  create mode 100644 drivers/media/platform/verisilicon/stm32mp25_venc_hw.c
>