linux-drivers/
drivers/gpu/drm/msm/hdmi

Qualcomm Snapdragon on-SoC HDMI transmitter

The HDMI output block built directly into several generations of Qualcomm Snapdragon application processors, used to drive an HDMI display straight from the SoC on development boards and embedded devices like the DragonBoard 410C and various mid-2010s Snapdragon-based products.

keep-annotate conf=0.84 last_sold=2019 deploy=low replacement=none subsystem=gpu category=graphics-display
84%

recommendation

Worth keeping but documenting as a legacy niche, because the on-SoC HDMI block only appears in older Snapdragon parts (roughly 8084 through 8998) and most modern Qualcomm platforms have moved to DisplayPort or external bridge chips instead. Upstream maintenance is still happening as recently as 2026, and boards like the DragonBoard 410C are still sold new in 2025, so removing it would break currently shipping hardware even though deployments are small.

repository signals

14 files
5,788 source lines
93 commits, 5y
+2,146 / −3,079 lines added / removed, 5y
31 authors, 5y
monthly commits · 2021-04-21 → 2026-04-21 · 93 total · active in 35/61 months
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sources

  1. lore.kernel.org

    Recent 2026 patch touching drivers/gpu/drm/msm/hdmi/hdmi.c shows the driver is still receiving upstream maintenance rather than removal work.

  2. cateee.net

    LKDDb shows CONFIG_DRM_MSM_HDMI remains present in current kernels and maps to multiple Qualcomm direct-HDMI compatibles from 8084 through 8998.

  3. arrow.com

    Arrow's product page lists the DragonBoard 410C as Part Status Active in 2025 and documents an HDMI display interface on Snapdragon 410 hardware that uses this driver family.

codex reasoning notes (technical)

Real driver directory. lore_activity on drivers/gpu/drm/msm/hdmi/hdmi.c returned recent 2026 maintenance mail on lore.kernel.org; no removal series surfaced in the successful lore query. Web search found LKDDb confirming current kernel presence and supported Qualcomm HDMI TX compatibles, and Arrow's live product page showing an HDMI-equipped DragonBoard 410C still sold as Active. Conclusion: keep support, but annotate as legacy/niche direct-HDMI Snapdragon hardware with low modern deployment and no single drop-in replacement driver for the same on-SoC block.