Samsung Exynos and Google Tensor PHY blocks (USB, UFS, PCIe, DisplayPort)
Low-level analog interface controllers (PHYs) embedded in Samsung Exynos and Google Tensor systems-on-chip, handling the physical signaling for USB 2.0/3.x, UFS storage, PCIe, and DisplayPort/video links. They cover a wide span of hardware from older Exynos mobile chips through current parts like the Exynos 2200, Google Tensor GS101 (Pixel 6), and the Exynos Auto V920 automotive processor.
recommendation
It should stay because this code is the only in-tree way to bring up the physical-layer interfaces on Samsung and Google SoCs that are still shipping in phones, Pixel devices, and automotive platforms in 2025. Upstream maintenance is ongoing, with recent fixes carrying review, test, and stable-backport tags, and new compatibles for parts like Exynos 2200, GS101, and Exynos Auto V920 continue to land. There is no alternative driver that could replace it.
repository signals
sources
- lore.kernel.org
Representative recent upstream maintenance: April 6, 2026 fix for exynos5-usbdrd, with Reviewed-by, Tested-by, Fixes, and Cc: stable, showing the code is still actively maintained rather than abandoned.
- semiconductor.samsung.com
Samsung markets Exynos Auto V920 as a current automotive processor, indicating this PHY family still maps to hardware sold for new designs in 2025-era deployments.
- semiconductor.samsung.com
Samsung still publishes an active product page for Exynos 2200, supporting that at least part of the covered Exynos PHY hardware remained commercially relevant in the 2025 window.
- git.kernel.org
Mainline source file covers multiple modern compatibles including google,gs101-usb31drd-phy and samsung,exynos2200-usb32drd-phy plus exynosautov920 USB PHY variants.
- git.kernel.org
Mainline source file covers samsung,exynosautov920-ufs-phy and google,gs101-ufs-phy, showing the directory spans newer Samsung/Google SoC generations, not only legacy Exynos parts.
codex reasoning notes (technical)
Local code inspection via shell `rg` showed this is a real PHY-driver directory with active SoC coverage up through GS101, Exynos2200, and ExynosAutoV920. `lore_activity` on `drivers/phy/samsung/phy-exynos5-usbdrd.c` returned 2026 fix traffic with review/test/stable tags, which argues strongly against deprecation. `lore_file_timeline` on the directory path returned no aggregate hits, so I used per-file lore evidence instead; attempted broader removal-subject queries timed out, and I found no positive removal evidence. Samsung product pages were obtained by `web.search_query`; kernel.org tree URLs are canonical recall used to anchor the compatible-list claims. No natural replacement driver exists: these PHY drivers are the SoC-specific implementation for their hardware blocks.