linux-kernel - Re: [PATCH 0/3] Enable JPEG Encoder on RK3566/RK3568

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Date:   Fri, 29 Apr 2022 10:46:01 -0400
From:   Nicolas Dufresne <nicolas@...fresne.ca>
To:     Nicolas Frattaroli <frattaroli.nicolas@...il.com>,
        Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Heiko Stuebner <heiko@...ech.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Peter Geis <pgwipeout@...il.com>,
        Michael Riesch <michael.riesch@...fvision.net>,
        Liang Chen <cl@...k-chips.com>
Cc:     linux-media@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-staging@...ts.linux.dev
Subject: Re: [PATCH 0/3] Enable JPEG Encoder on RK3566/RK3568

Le jeudi 28 avril 2022 à 00:44 +0200, Nicolas Frattaroli a écrit :
> Hello,
> 
> the following series adds support for and enables the hardware JPEG
> encoder on the RK3566 and RK3568 line of SoCs by Rockchip.
> 
> The JPEG encoder is its own little Hantro instance with seemingly just
> the encode functionality.

I'm a little suspicious about this statement. I believe the Hantro combo is
identical to RK3399 and that you are confusing with Rockchip JPEG encoder here.
Here's the source of my suspicion:

https://github.com/JeffyCN/rockchip_mirrors/blob/mpp/osal/mpp_soc.cpp#L637

As this get burnt into DT, we really need to get this right. Perhaps we need to
run the reference software to verify ? Ping me if you need help with that.

> 
> The first patch modifies the bindings with a new compatible, and adds
> the ability to just have a vepu interrupt without a vdpu interrupt.
> 
> The second patch makes the actual driver changes to support this variant.
> 
> The third and final patch makes the necessary device tree changes for
> the rk356x device tree file to add both the node for the encoder and
> its MMU.
> 
> The series has been tested on a PINE64 Quartz64 Model A with an RK3566
> SoC using GStreamer.
> 
> Regards,
> Nicolas Frattaroli
> 
> Nicolas Frattaroli (3):
>   dt-bindings: media: rockchip-vpu: Add RK3568 JPEG compatible
>   media: hantro: Add support for RK356x JPEG encoder
>   arm64: dts: rockchip: Add JPEG encoder node to rk356x
> 
>  .../bindings/media/rockchip-vpu.yaml          |  2 +
>  arch/arm64/boot/dts/rockchip/rk356x.dtsi      | 21 +++++++
>  drivers/staging/media/hantro/hantro_drv.c     |  1 +
>  drivers/staging/media/hantro/hantro_hw.h      |  1 +
>  .../staging/media/hantro/rockchip_vpu_hw.c    | 62 +++++++++++++++++++
>  5 files changed, 87 insertions(+)
>