[PATCH v2 0/3] Support MSM8916 USB PHY + UDC in qcom_defconfig

[Sam Day]

The MSM8916 SoC includes a ChipIdea UDC. The U-Boot driver for this UDC
is quite old, and did not support USB gadget driver model. As a result,
it could not be built alongside the DWC3 driver. This meant that
qcom_defconfig could not include support for USB on MSM8916.

This series adds support to build ChipIdea UDC with DM_USB_GADGET and
ensures that the newly introduced driver is registered from the MSM EHCI
glue driver.

The ChipIdea UDC driver continues to work without DM_USB_GADGET. I
tested these changes by building dragonboard410c_defconfig (which does
not enable DM_USB_GADGET), booting it, and then chain-booting (via
fastboot) another u-boot build built with qcom_defconfig. USB gadget
mode worked in both builds.

Signed-off-by: Sam Day <me at samcday.com>
---
Changes in v2 (thanks Stephan):
- Deduplicate CI UDC setup/teardown paths
- Formatting fix
- Regenerate qcom_defconfig with savedefconfig
- Link to v1: https://lore.kernel.org/r/20250412-msm8916-usb-v1-0-2925239caf4b@samcday.com

---
Sam Day (3):
      usb: udc: ci: support USB gadget driver model
      usb: host: ehci-msm: Register ChipIdea UDC from glue wrapper
      qcom_defconfig: Enable MSM8916 USB PHY + ChipIdea UDC

 configs/qcom_defconfig      |   4 +-
 drivers/usb/gadget/Kconfig  |   1 -
 drivers/usb/gadget/ci_udc.c | 118 ++++++++++++++++++++++++++++++++++++--------
 drivers/usb/host/ehci-msm.c |   7 +++
 4 files changed, 107 insertions(+), 23 deletions(-)
---
base-commit: 987907ae4bcc5d6055bdf7d318a3edf53e14d5fa
change-id: 20250412-msm8916-usb-a1dc93c01bd5

Best regards,
-- 
Sam Day <me at samcday.com>