On 8/26/24 11:12 AM, Zixun LI wrote:
On Sun, Aug 25, 2024 at 2:13 AM Marek Vasut <ma...@denx.de> wrote:
I am looking at the usb_add_gadget_udc_release() and
usb_gadget_probe_driver() and I am thinking, sigh, all that code is
ready to be replaced by something cleaner which does not use this
special struct usb_udc and udc_list, but instead only uses U-Boot DM
udevices . But I am reluctant to ask you to do all that rework, because
that is WAY out of scope of the problem you are trying to fix.
Thank you for looking into this, refactor udc core could make things clear.
Sigh, yeah, I think you ran into part of the UDC code which is just ...
not great ... sorry about that.
Maybe this could be a start (compile tested only):
https://source.denx.de/u-boot/custodians/u-boot-sh/-/commits/usb-udc-udevice
Tested no regression with usba_udc.
Thanks for testing, patches posted.
