Rockchip RKISP1 image signal processor
An image signal processor block found in Rockchip SoCs (such as RK3399, RK3568) and licensed into other ARM application processors like NXP's i.MX 8M Plus. It handles the camera pipeline duties — demosaicing, noise reduction, color correction and statistics — for embedded vision and single-board-computer products from roughly 2018 onward.
recommendation
It should stay in the kernel because the hardware is actively shipping in 2025 (NXP's i.MX 8M Plus is still a current product, and newer Rockchip parts in the RK3568 generation use a related V20 variant of the same ISP) and the code is under active upstream development, with feature work and fixes landing as recently as 2025 and 2026. There is no alternative in-tree driver for this ISP block, so it remains essential for embedded camera designs built on these SoCs.
repository signals
sources
- lore.kernel.org
Upstream work continued into 2026 with a multi-file rkisp1 power-management/IRQ patch, indicating active maintenance rather than retirement.
- lore.kernel.org
rkisp1 received feature work in 2025 ('Add support for multiple power domains'), showing ongoing enablement for newer platforms.
- docs.kernel.org
Kernel documentation describes rkisp1 variants across multiple SoCs, including V10/V12 deployments and V20 appearing in rk3568-and-beyond families, showing this IP family is not just a one-generation relic.
- docs.kernel.org
Current kernel uAPI documentation includes RKISP1_V_IMX8MP, explicitly noting use in at least i.MX8MP.
- nxp.com
NXP lists i.MX 8M Plus as Active and highlights dual image signal processors, supporting that rkisp1-class hardware remains sold for new embedded vision designs.
codex reasoning notes (technical)
`keep`: lore_file_timeline on rkisp1-dev.c showed dense 2021-2026 activity with recent 2025-2026 fixes/features; cited lore URLs came from that MCP tool. docs.kernel.org pages were obtained by web search and show supported rkisp1 variants, including i.MX8MP and newer rk3568-era IP lineage. NXP product page was obtained by web search and shows i.MX8M Plus is Active in 2025. No natural in-tree replacement exists for the same ISP block; support remains relevant for embedded camera products, so removal/deprecation is not indicated.