usb: dwc2: Improve gadget state disconnection handling

In the earlier commit dad3f793f20f ("usb: dwc2: Make sure we
disconnect the gadget state"), I was trying to fix up the
fact that we somehow weren't disconnecting the gadget state,
so that when the OTG port was plugged in the second time we
would get warnings about the state tracking being wrong.

(This seems to be due to a quirk of the HiKey board where
we do not ever get any otg interrupts, particularly the session
end detected signal. Instead we only see status change
interrupt.)

The fix there was somewhat simple, as it just made sure to
call dwc2_hsotg_disconnect() before we connected things up
in OTG mode, ensuring the state handling didn't throw errors.

But in looking at a different issue I was seeing with UDC
state handling, I realized that it would be much better
to call dwc2_hsotg_disconnect when we get the state change
signal moving to host mode.

Thus, this patch removes the earlier disconnect call I added
and moves it (and the needed locking) to the host mode
transition.

Cc: Wei Xu <[email protected]>
Cc: Guodong Xu <[email protected]>
Cc: Amit Pundir <[email protected]>
Cc: YongQin Liu <[email protected]>
Cc: John Youn <[email protected]>
Cc: Minas Harutyunyan <[email protected]>
Cc: Douglas Anderson <[email protected]>
Cc: Chen Yu <[email protected]>
Cc: Felipe Balbi <[email protected]>
Cc: Greg Kroah-Hartman <[email protected]>
Cc: [email protected]
Acked-by: Minas Harutyunyan <[email protected]>
Tested-by: Minas Harutyunyan <[email protected]>
Signed-off-by: John Stultz <[email protected]>
Signed-off-by: Felipe Balbi <[email protected]>

0 files changed, 0 insertions, 0 deletions