omap5: dwc3 interface status in /sys

[H. Nikolaus Schaller]

Hi Felipe,
I have made otg mode work on the omap5-uevm with help from Roger
and now I wonder how to read the interface status for GUI display.

On omap3/twl4030 systems we can simply read

	/sys/bus/platform/devices/musb-hdrc.0.auto/mode

and get reports e.g. "b_peripheral", "a_host", "b_idle" etc. which can easily
be translated into icons for GUI display.

We have not found a similar attribute for dwc3 (except part of this information
in

	/sys/kernel/debug/4a030000.dwc3

but mounting debugfs for GUI purposes isn't a good idea).

So do you think it is possible to provide such information to

	/sys/devices/platform/44000000.ocp/4a020000.omap_dwc3/4a030000.dwc3?

BR,
Nikolaus