linux-kernel - Re: [PATCH v6 0/5] Support Nuvoton NPCM Video Capture/Encode Engine

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Message-ID: <1d770c8e-1ac5-34b5-7c09-f55b8325c9cb@xs4all.nl>
Date:   Fri, 4 Nov 2022 09:36:37 +0100
From:   Hans Verkuil <hverkuil@...all.nl>
To:     Marvin Lin <milkfafa@...il.com>, mchehab@...nel.org,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     openbmc@...ts.ozlabs.org, avifishman70@...il.com,
        tmaimon77@...il.com, tali.perry1@...il.com, kwliu@...oton.com,
        kflin@...oton.com
Subject: Re: [PATCH v6 0/5] Support Nuvoton NPCM Video Capture/Encode Engine

Hi Marvin,

On 04/11/2022 04:38, Marvin Lin wrote:
> This patch series add DTS node, dt-bindings document and drivers for Video
> Capture/Differentiation Engine (VCD) and Encoding Compression Engine (ECE)
> present on Nuvoton NPCM SoCs.
> 
> VCD can capture/differentiate video data from digital or analog sources,
> then the ECE will compress the data into HEXTILE format.
> 
> HEXTILE compressed format is defined in Remote Framebuffer Protocol (RFC
> 6143) and is used by VNC features, so we also add a patch to support it.
> 
> Changes in v6:
>   - Support NPCM845 and add compatible "nuvoton,npcm845-video".
>   - Correct pixel format to V4L2_PIX_FMT_HEXTILE which is newly added in
>     this patch series.
> 
> Changes in v5:
>   - Simplify function prefix "nuvoton_" to "npcm_".
>   - Increase VCD_BUSY_TIMEOUT_US and ECE_POLL_TIMEOUT_US to 300ms to
>     prevent polling timeout when ECC is enabled or system is busy.
> 
> Changes in v4:
>   - Fix compile warning reported by kernel test robot.
> 
> Changes in v3:
>   - Add video driver entry in MAINTAINERS.
>   - Change config name to CONFIG_VIDEO_NPCM_VCD_ECE.
>   - Reduce the waiting time after resetting the VCD/ECE module.
>   - Correct data types of some variables.
> 
> Changes in v2:
>   - Add Hextile document and locate with vendor formats.
> 
> Marvin Lin (5):
>   arm: dts: Add node for NPCM Video Capture/Encode Engine
>   dt-bindings: media: Add dt-bindings for NPCM Video Capture/Encode
>     Engine
>   dt-bindings: arm/npcm: Add dt-bindings for Graphics Core Information

FYI: you need to CC this series to devicetree@...r.kernel.org so they can review
the bindings.

Regards,

	Hans

>   media: Add HEXTILE compressed format
>   drivers: media: platform: Add NPCM Video Capture/Encode Engine driver
> 
>  .../bindings/arm/npcm/nuvoton,gfxi.yaml       |   41 +
>  .../bindings/media/nuvoton,npcm-video.yaml    |   87 +
>  .../media/v4l/pixfmt-reserved.rst             |    7 +
>  MAINTAINERS                                   |    9 +
>  arch/arm/boot/dts/nuvoton-common-npcm7xx.dtsi |   19 +
>  drivers/media/platform/Kconfig                |    1 +
>  drivers/media/platform/Makefile               |    1 +
>  drivers/media/platform/nuvoton/Kconfig        |   12 +
>  drivers/media/platform/nuvoton/Makefile       |    2 +
>  drivers/media/platform/nuvoton/npcm-video.c   | 2093 +++++++++++++++++
>  drivers/media/v4l2-core/v4l2-ioctl.c          |    1 +
>  include/uapi/linux/videodev2.h                |    1 +
>  12 files changed, 2274 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/arm/npcm/nuvoton,gfxi.yaml
>  create mode 100644 Documentation/devicetree/bindings/media/nuvoton,npcm-video.yaml
>  create mode 100644 drivers/media/platform/nuvoton/Kconfig
>  create mode 100644 drivers/media/platform/nuvoton/Makefile
>  create mode 100644 drivers/media/platform/nuvoton/npcm-video.c
>