NVIDIA Tegra SoC Clock Controllers
Clock controller support for NVIDIA's Tegra family of ARM systems-on-chip, which power the Jetson embedded computing modules (Nano, TX2, Xavier, Orin) as well as older Tegra-based tablets, automotive infotainment systems, and the Nintendo Switch. These controllers gate and configure the dozens of internal clocks that drive each Tegra SoC's CPU, GPU, memory, and peripheral blocks.
recommendation
It should stay because Tegra hardware is still actively sold in 2025 — NVIDIA continues to market Jetson Nano and other Jetson modules and published refreshed Jetson Linux documentation as recently as June 2025. The code is also still receiving upstream maintenance, with patches touching this directory landing on the linux-clk list in 2025, and there is no replacement driver since each Tegra SoC generation needs its own clock support.
repository signals
sources
- lore.kernel.org
Upstream lore shows this directory still receives linux-clk traffic in 2025, indicating ongoing maintenance rather than abandonment.
- lore.kernel.org
A 2025 cross-subsystem patch series still touched drivers/clk/tegra code, so the code remains part of active kernel integration work.
- developer.nvidia.com
NVIDIA still marketed Jetson Nano modules for purchase in 2025, providing current new-hardware deployment evidence for Tegra210-era support.
- developer.nvidia.com
NVIDIA's Jetson hardware lineup page still lists Jetson Nano and TX2 family modules, showing continued ecosystem presence for Tegra-based products.
- docs.nvidia.com
NVIDIA published Jetson Linux documentation updated on June 26, 2025, showing ongoing vendor software support for Jetson platforms.
codex reasoning notes (technical)
Real driver directory: contains Tegra clock-controller implementation files and Kconfig entries for ARCH_TEGRA_* SoCs. lore_activity(file=drivers/clk/tegra/clk-tegra210.c) produced the cited lore URLs, showing 2025 maintenance traffic and no removal signal. Local tree inspection showed multiple SoC-specific Tegra clock drivers plus BPMP support, so there is no natural upstream replacement driver. Web search on developer.nvidia.com/docs.nvidia.com produced the cited Jetson Nano, Jetson hardware, and Jetson Linux documentation URLs; together they support that Tegra-based Jetson hardware was still sold and supported in 2025. Recommendation stays keep, not keep-annotate/deprecate/remove, because upstream activity is recent and deployments remain meaningful in embedded/Jetson use.