Re: [PATCH] usb: dwc2: exit clock_gating when stopping udc caused deadlock

[xiaoxiao_li]

Sorry for the unclear explanation.
This is caused by the patch modification ba78c2b3254c usb: dwc2: also exit clock_gating when stopping udc while suspended.

before this patch, the dwc2_gadget_exit_clock_gating was used in the IRQ handler,
and the handler would immediately acquire the lock with a spin_lock upon entering the function.
However, dwc2_gadget_exit_clock_gating do unlocks first and then relocks after done.
This modification is used in a normal flow, causing a deadlock to occur whenever this function is called.