Socionext UniPhier SoC clock controllers
Clock controllers built into Socionext's UniPhier family of system-on-chip processors, used in smart TVs, set-top boxes, and other consumer media devices from the mid-2010s. The driver covers a range of UniPhier generations including LD4, Pro4, sLD8, Pro5, PXs2, LD11, LD20, PXs3, and NX1.
recommendation
Worth keeping but documenting its niche, because UniPhier was a legacy Socionext consumer-SoC line (heavily marketed for smart TVs around 2015) that is no longer pushed as a current product family, yet there is no replacement driver and no removal discussion upstream. Trusted Firmware-A still carries UniPhier platform support, suggesting some lingering deployments, so the driver should remain available for those users while its legacy status is noted.
repository signals
sources
- git.kernel.org
Mainline Linux has a dedicated built-in platform clock driver for multiple Socionext UniPhier SoCs, with DT compatibles covering LD4/PRO4/SLD8/PRO5/PXS2/LD11/LD20/PXS3/NX1.
- trustedfirmware-a.readthedocs.io
Trusted Firmware-A documents Socionext UniPhier Armv8-A SoCs and their boot flow, indicating the platform still has adjacent upstream firmware support.
- edn.com
UniPhier was marketed into smart-TV/media SoCs in 2015, which points to a legacy consumer-SoC family rather than a currently promoted 2025 product line.
- socionext.com
Socionext's current corporate/product messaging emphasizes custom SoCs and newer offerings; UniPhier is not presented as a current product family.
codex reasoning notes (technical)
Inspected local files with exec_command/rg: this is real driver code, not helpers, and it binds many UniPhier clock compatibles. lore_file_timeline on the directory path returned no events; a representative-file lore timeline was dominated by U-Boot, and no Linux-kernel removal discussion was found from the lore checks, so I treated upstream removal evidence as absent. The kernel.org URL is canonical recall corresponding to the locally inspected file. TF-A and vendor/product URLs were obtained via web search. Recommendation is keep-annotate: low recent Linux churn and likely legacy deployments, but no natural replacement driver and no concrete removal push.