[PATCH 0/2] usb: typec: ucsi: Add ITE IT5271 series and DisplayPort alt mode support

[Amber Kao]

This series extends the itepd UCSI driver with support for the ITE
IT5271 series controllers, and adds DisplayPort alternate mode
handling.

The IT5271 series shares the same programming interface as the
IT8851/IT8853. The IT5272 and IT5274 drive two Type-C connectors, and
the IT5273 and IT5274 additionally support EPR.

For DisplayPort alternate mode, the driver queries the current
alternate mode from the PPM, configures the Type-C mux and retimer
accordingly, and reports HPD state and HPD IRQ through the DRM
auxiliary HPD bridge.

This series depends on the following series, which has not been picked
up yet:

  https://lore.kernel.org/linux-usb/20260807-ucsi-itepd-v7-0-998ac11ed0ef@xxxxxxxxxx/

Signed-off-by: Amber Kao <ite_pd@xxxxxxxxxx>
---
Amber Kao (2):
      dt-bindings: usb: ite,it8851: Add IT5271 series support
      usb: typec: ucsi: itepd: Add DisplayPort alternate mode support

 .../devicetree/bindings/usb/ite,it8851.yaml        |  72 +++-
 drivers/usb/typec/ucsi/Kconfig                     |  10 +-
 drivers/usb/typec/ucsi/ucsi_itepd.c                | 405 ++++++++++++++++++++-
 3 files changed, 467 insertions(+), 20 deletions(-)
---
base-commit: 3c4aafdfefdc69285d7d4f11d7944f56083fdd8e
change-id: 20260911-ucsi-itepd-it527x-5b87a61a71bb

Best regards,
--  
Amber Kao <ite_pd@xxxxxxxxxx>