Re: [PATCH v2] dwc2: Delay resume until device connection is stable

[Jason Sun]

On Wed, Dec 24, 2025 at 09:40:03AM +0100, Greg KH wrote:
> On Wed, Dec 24, 2025 at 04:20:13PM +0800, Jason Sun wrote:
> > Tested on:
> >   - Kernel: v5.15.140
>
> That's a very old kernel version.  How about 6.18?
>
> thanks,
>
> greg k-h

Hi Greg,

Sorry for the formatting issues in my previous email.

Thanks for the feedback.

At the moment I only have access to this board on a 5.15-based BSP,
so I can only run-time test on v5.15.140. I don't currently have a
working mainline (v6.x) boot chain for this hardware.

The patch applies cleanly and builds on the current usb.git tree
(v6.15-based, build-tested only). The change is based on reviewing
the resume path around VBUS enable, which still proceeds after a fixed
usleep_range(3000, 5000) delay and can observe an unstable CONNSTS
window on our setup.

Please let me know if build-tested on usb.git is acceptable for now,
or if you'd prefer the change to be conditional (e.g. via DT or a
module parameter).

Thanks,
Jason Sun