STMicroelectronics STiH4xx set-top-box display controller
Display and HDMI output hardware built into STMicroelectronics' STiH407, STiH410, and STiH418 ARM system-on-chips, the "Monaco" family of multimedia processors that ST shipped around 2013 for digital set-top boxes and home media gateways.
recommendation
Worth keeping but documenting its niche, because the underlying STiH4-series chips are a decade-old set-top-box generation now being marked obsolete by ST, yet the driver still sees real upstream maintenance — including a mid-2025 rework patch and late-2025 DRM-wide cleanups. With no successor driver and a small base of legacy boxes still running it, removal would hurt those users, but a comment flagging it as legacy hardware would help future maintainers.
repository signals
sources
- lore.kernel.org
Mid-2025 patch traffic touched drivers/gpu/drm/sti directly ('drm/sti: make use of drm_of_component_probe'), showing ongoing upstream maintenance rather than abandonment.
- lore.kernel.org
Late-2025 treewide DRM maintenance still touched sti code, confirming it remains build-relevant in current kernels.
- kernel.org
Kernel documentation says the STi platform supports STiH407, STiH410 and STiH418 ARM SoCs.
- st.com
ST's data brief identifies STiH407/STiH410 as 2013-era Monaco-family multimedia/server-box set-top-box SoCs, indicating an old consumer-broadcast hardware generation.
- st.com
A closely related STiH4-series product page marks STiH412 as 'Obsolete / Out of Production', supporting the view that this family is in late-life rather than a growth market.
- st.com
ST still groups STiH4-series parts under digital set-top-box ICs, implying some residual vendor-family presence even as the line is legacy.
codex reasoning notes (technical)
Local tree inspection via rg found Kconfig naming 'STMicroelectronics SoC stiH4xx Series' and compatibles such as stih407/stih416. lore_activity on drivers/gpu/drm/sti/sti_drv.c returned direct 2025 drm/sti patches plus late-2025 DRM treewide touches; a local git-log grep for remove/drop/deprecat on this path found no removal-subject evidence. Web search yielded kernel.org STi docs plus current/archival ST product pages: stih410.pdf shows 2013 Monaco-family STB SoCs, stih412 page shows sibling family obsolescence, and the generic ST set-top-box page shows only residual family presence. Conclusion: legacy low-volume deployments remain, no obvious successor driver exists, so keep the driver but annotate it as legacy rather than deprecate/remove.