Arm Mali-C55 Image Signal Processor
Arm's Mali-C55 is a licensable image signal processor block that SoC vendors integrate into embedded chips for smart cameras, smart home devices, smart displays, and industrial vision systems. Introduced by Arm in 2022, it handles the pixel pipeline (sensor capture, tuning, and processing) for camera-equipped IoT and security products.
recommendation
It should stay in the kernel because it is a brand-new, actively maintained driver: it landed upstream in late 2025, has named maintainers in MAINTAINERS, has official admin-guide documentation, and was still receiving fix series (v7 in March 2026) at the time of review. Arm continues to market the Mali-C55 as licensable IP for new embedded vision designs, so real users will need this driver going forward.
repository signals
sources
- patchew.org
A March 2026 v7 fix series for mali-c55 shows active upstream maintenance after merge, not removal activity.
- kernel.org
The MAINTAINERS documentation lists ARM MALI-C55 ISP DRIVER with named maintainers, indicating supported upstream ownership.
- docs.kernel.org
Kernel documentation describes the driver as the ARM Mali-C55 Image Signal Processor driver under drivers/media/platform/arm/mali-c55, covering current V4L2/media-controller functionality.
- developer.arm.com
Arm introduced Mali-C55 in 2022 for smart vision, smart home cameras, smart displays, and industrial/commercial vision use cases.
- arm.com
Arm still markets Mali-C55 as licensable silicon IP for IoT/smart vision and security-camera style products, supporting the view that it remained sellable new in 2025/2026.
codex reasoning notes (technical)
Keep: this is a very new driver (first merged 2025-11-14 from provided history) with a recent substantive touch on 2026-01-06 and additional public fix traffic in March 2026, so there is no sign of obsolescence. No removal discussion was found; web search was used instead of lore MCP/lei because lore MCP was unavailable and `lei` was missing locally. URLs obtained via web search: Patchew series mirror for current upstream activity, kernel MAINTAINERS and kernel docs for supported status/driver scope, Arm community blog and Arm product page for ongoing market availability. Deployment is rated low rather than medium/high because this is recent licensable ISP IP in embedded SoCs, not legacy mass-market PC hardware, but it is clearly still relevant for new embedded vision designs.