[PATCH v2 0/9] phy: rockchip: usbdp: Fixes, DP 1-lane support and cleanups

Sebastian Reichel sebastian.reichel at collabora.com
Fri Feb 13 06:39:23 PST 2026


As there are some issues with the DisplayPort support, I went
though Rockchip's BSP kernel tree and looked for fixes. I found
two small changes for the initial register setup, which do not
help with the DP issue but seem sensible in general. Afterwards
I added one more fix, which corrects an issue that effectively
results in USB-C adapters with combined USB3+DP capabilities
not being able to use the DP part.

Afterwards I added one more patch adding single-lane DP support
(found in Rockchip BSP kernel) and a couple of cleanups from my
side. These are logically independent from the fixes, but I put
all together in a single series because they need to be applied
in the right order to avoid conflicts.

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 (6):
      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

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

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

 drivers/phy/rockchip/phy-rockchip-usbdp.c | 120 +++++++++++++-----------------
 1 file changed, 50 insertions(+), 70 deletions(-)
---
base-commit: 05f7e89ab9731565d8a62e3b5d1ec206485eeb0b
change-id: 20260203-rockchip-usbdp-cleanup-5b59dfb561a3

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




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