Re: [PATCH 1/4] media: dt-bindings: Add Rockchip JPEG decoder

[Krzysztof Kozlowski <krzk@kernel.org>]

On 24/08/2026 09:01, Sascha Hauer wrote:
> Add a devicetree binding schema for the JPEG hardware decoder Rockchip
> integrates into a number of its SoCs.  Documents the single register
> window (task registers plus the LLP link-table block at offset 0x300),
> the decode interrupt, the aclk/hclk clocks, the AXI/AHB resets, the IOMMU
> and the power domain.
> 
> The core is not tied to one SoC.  Downstream it is known as the VDPU720
> and the same block sits on the RK3528, RK3562, RK356x, RK3576, RK3588 and
> RV1126B, with only the clocks, the resets and the power domain differing,
> none of which this schema constrains.  A compatible per SoC is all it
> takes to cover them; the RK3568 and the RK3588 are the two that have been
> tested and are enabled here.
> 
> The resets and the power domain are required.  The block cannot be
> reached with its domain off, and the driver falls back to pulsing the
> reset lines when a frame times out and the in-block soft reset does not
> complete, which a node without them would leave with no way to recover.
> 
> The IOMMU stays optional.  The driver never refers to it, it is a platform
> integration detail, and rockchip-vpu.yaml does not require it for the
> other codec blocks on these SoCs either.
> 
> Assisted-by: Claude:claude-opus-5
> ---
>  .../bindings/media/rockchip,jpeg-decoder.yaml      | 92 ++++++++++++++++++++++
>  MAINTAINERS                                        |  8 ++
>  2 files changed, 100 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/media/rockchip,jpeg-decoder.yaml b/Documentation/devicetree/bindings/media/rockchip,jpeg-decoder.yaml
> new file mode 100644
> index 0000000000000..e20c1bf43ef3e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/rockchip,jpeg-decoder.yaml
> @@ -0,0 +1,92 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/media/rockchip,jpeg-decoder.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Rockchip JPEG Decoder
> +
> +maintainers:
> +  - Lucas Sinn <lucas.sinn@wolfvision.net>
> +  - Sascha Hauer <s.hauer@pengutronix.de>
> +
> +description:
> +  Rockchip's in-house JPEG/MJPEG hardware decoder, known downstream as the
> +  VDPU720.  The same core is integrated into a number of Rockchip SoCs, which
> +  differ only in the clocks, resets and power domain they are wired to.  A
> +  dedicated Link List Processor (LLP) register block, located at offset 0x300
> +  within the same register window, allows the hardware to decode a chain of
> +  frames autonomously ("link mode").
> +
> +properties:
> +  compatible:
> +    enum:
> +      - rockchip,rk3568-jpegd
> +      - rockchip,rk3588-jpegd

How this can be v1 if you send VPU720 for rk3588 already?

https://lore.kernel.org/all/20260819-rk3588-jpegdec-v1-4-33d74cdf369c@pengutronix.de/

Were there more versions?

Best regards,
Krzysztof