[PATCH v3 00/12] phy: rockchip: usbdp: Fixes, DP 1-lane support and cleanups

Sebastian Reichel sebastian.reichel at collabora.com
Fri Mar 13 10:57:09 PDT 2026


This series overhauls the Rockchip USBDP driver; apart from a
a bunch of cleanups and small improvements the main goal is to
get the driver ready for proper USB-C DP AltMode support.

Once this series has landed, it unblocks enabling proper USB-C
DP AltMode on the RK3588 and RK3576 platforms incl. runtime PM
for the Synopsys DesignWare DisplayPort controller.

Apart from this series, further changes are required on the
DRM side. There are no compile-time dependencies between the
DRM side and the PHY side, but the PHY side must be applied
to avoid SErrors once runtime PM is added to the DisplayPort
controller driver. Thus it would be really good to land this
series in the next merge window.

Changes in v3:
- Link to v2: https://lore.kernel.org/r/20260213-rockchip-usbdp-cleanup-v2-0-b67ec225f96e@collabora.com
- Add patch to register the USBDP PHY as DRM bridge
- Add patch to describe ports in DT binding (used by the DRM bridge)
- Add patch to drop HPD handling from the PHY

Changes in v2:
- Link to v1: https://lore.kernel.org/r/20260203-rockchip-usbdp-cleanup-v1-0-16a6f92ed176@collabora.com
- Added new patches to fix USB3 SError

Signed-off-by: Sebastian Reichel <sebastian.reichel at collabora.com>
---
Frank Wang (1):
      phy: rockchip: usbdp: Amend SSC modulation deviation

Sebastian Reichel (9):
      dt-bindings: phy: rockchip-usbdp: add improved ports scheme
      phy: rockchip: usbdp: Do not loose USB3 PHY status
      phy: rockchip: usbdp: Keep clocks running on PHY re-init
      phy: rockchip: usbdp: Add missing mode_change update
      phy: rockchip: usbdp: Rename DP lane functions
      phy: rockchip: usbdp: Use FIELD_PREP_WM16_CONST
      phy: rockchip: usbdp: Cleanup DP lane selection function
      phy: rockchip: usbdp: Register DP aux bridge
      phy: rockchip: usbdp: Drop DP HPD handling

William Wu (1):
      phy: rockchip: usbdp: Fix LFPS detect threshold control

Zhang Yubing (1):
      phy: rockchip: usbdp: Support single-lane DP

 .../bindings/phy/phy-rockchip-usbdp.yaml           |  23 +++
 drivers/phy/rockchip/Kconfig                       |   2 +
 drivers/phy/rockchip/phy-rockchip-usbdp.c          | 158 +++++++--------------
 3 files changed, 74 insertions(+), 109 deletions(-)
---
base-commit: 6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27f
change-id: 20260203-rockchip-usbdp-cleanup-5b59dfb561a3

Best regards,
-- 
Sebastian Reichel <sebastian.reichel at collabora.com>




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