usb: dwc3: xilinx: Add Versal2 MMI USB 3.2 controller support

This series introduces support for the Multi-Media Integrated (MMI) USB
3.2 Dual-Role Device (DRD) controller on Xilinx Versal2 platforms.

The controller supports SSP(10-Gbps), SuperSpeed, high-speed, full-speed
and low-speed operation modes.

USB2 and USB3 PHY support Physical connectivity via the Type-C
connectivity. DWC3 wrapper IP IO space is in SLCR so reg is made
optional.

The driver is required for the clock, reset and platform specific
initialization (coherency/TX_DEEMPH etc).  In this initial version
typec reversibility is not implemented and it is assumed that USB3
PHY TCA mux programming is done by MMI configuration data object
(CDOs) and TI PD controller is configured using external tiva
programmer on VEK385 evaluation board.

This patch series depend upon[1]
[1]: https://lore.kernel.org/all/20251114123239.1929255-1-radhey.shyam.pandey@amd.com

Radhey Shyam Pandey (3):
  dt-bindings: usb: dwc3-xilinx: Add MMI USB support on Versal Gen2
    platform
  usb: dwc3: xilinx: Add Versal2 MMI USB 3.2 controller support
  usb: dwc3: xilinx: Add support to program MMI USB TX deemphasis

 .../devicetree/bindings/usb/dwc3-xilinx.yaml  | 19 ++++-
 drivers/usb/dwc3/core.c                       | 17 ++++
 drivers/usb/dwc3/core.h                       |  7 ++
 drivers/usb/dwc3/dwc3-xilinx.c                | 77 ++++++++++++++++---
 4 files changed, 106 insertions(+), 14 deletions(-)

-- 
2.34.1