Re: [PATCH 4/7] media: dt-bindings: Add Rockchip RK3588 VPU720 JPEG decoder

From: Krzysztof Kozlowski

Date: Fri Aug 28 2026 - 04:59:10 EST


On Wed, Aug 19, 2026 at 12:37:33PM +0200, Sascha Hauer wrote:
> Add a devicetree binding schema for the VPU720 JPEG hardware decoder on
> the RK3588, driven by the hantro V4L2 driver. Documents the single
> register window (task registers plus the LLP link-table block at offset
> 0x300), the JPEG decode interrupt, the aclk/hclk clocks, the AXI/AHB
> resets, the IOMMU and the power domain.
>
> The resets and the power domain are required. The block sits in
> RK3588_PD_VDPU and cannot be reached with the domain off, and the driver
> takes the resets with reset_control_array_get_optional(), so a node
> without them probes and the hard reset fallback in its error recovery
> silently does nothing.
>
> 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 this SoC either.
>
> Assisted-by: Claude:claude-opus-5
> Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> ---
> .../bindings/media/rockchip,rk3588-vpu720.yaml | 93 ++++++++++++++++++++++
> MAINTAINERS | 1 +
> 2 files changed, 94 insertions(+)

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxxxxx>

Best regards,
Krzysztof