Qualcomm Snapdragon DSI display PHYs
The analog PHY layer that drives MIPI DSI display panels on Qualcomm Snapdragon mobile, automotive, and embedded SoCs, spanning older 28nm parts through current families like sm8550, sm8650, and sm8750. It is the piece of the MSM display stack that physically clocks pixels out to the LCD or OLED panel on Android phones and Qualcomm-based vehicle dashboards.
recommendation
It should stay because this is the upstream home for the display PHYs on every modern Qualcomm SoC, and patches were still landing in early 2026 to add support for new chips like Milos and SC8280XP. Snapdragon 8 Elite phones such as the Galaxy S25 and Snapdragon Ride Flex automotive platforms shipping in 2025 all depend on this code to drive their panels.
repository signals
sources
- lore.kernel.org
As of March 27, 2026, upstream was still adding new DSI PHY support ('drm/msm/dsi: add support for DSI-PHY on Milos'), indicating active enablement rather than retirement.
- lore.kernel.org
As of February 25, 2026, the driver was still receiving new SoC configuration support ('drm/msm/dsi: Add DSI PHY configuration on SC8280XP').
- qualcomm.com
Qualcomm announced Snapdragon 8 Elite for Samsung Galaxy S25 on January 22, 2025, showing this SoC family remained in new flagship mobile deployments in 2025.
- qualcomm.com
Qualcomm announced Snapdragon Ride Flex collaboration with Hyundai Mobis on January 6, 2025, showing adjacent supported Qualcomm automotive platforms were also entering new vehicle designs in 2025.
- git.kernel.org
The in-tree match table covers Qualcomm DSI PHY variants from older 28nm blocks through recent SA/SC/SM families including sa8775p, sm8450, sm8550, sm8650, sm8750, and kaanapali.
codex reasoning notes (technical)
Recommendation is keep: lore_file_timeline on drivers/gpu/drm/msm/dsi/phy/dsi_phy.c showed heavy 2021-2026 activity (467 matches, newest 2026-03-27) with recent feature-enablement patches, so the code is actively maintained. Local shell inspection of dsi_phy.c showed DT compatibles spanning legacy and current Qualcomm families up to sm8750/kaanapali; the kernel.org tree URL is cited as canonical recall for that same file. Web search results on qualcomm.com showed Snapdragon 8 Elite mobile and Ride Flex automotive deployments in 2025, so hardware covered by this directory is still entering new products. No natural replacement driver exists: this directory is the upstream msm DSI PHY implementation for these SoCs. Lore removal-focused queries timed out, so confidence rests primarily on strong positive maintenance/deployment evidence rather than exhaustive proof of no removal discussion.