How to correctly load a driver without device tree?

[Greg KH]

On Wed, Jun 20, 2018 at 04:30:40PM +0800, kipade wrote:
> That's a usb host driver. As I know, the whole usb subsystem
> initialization would take up to 2 seconds while booting. In
> another word, that will make the system booting time more
> longer. So, I have to build all the usb driver as module and
> insert them latter, when the system was usable.

Then use async probing and/or deferred probing.  Or even better yet, fix
the driver to not wait 2 seconds when booting, that should not happen.

good luck!

greg k-h