wlan: DXE RX interrupt enable too early
DXE RX system level interrupt happen too early.
As a result, before PS bit clear, interrupt may arrive.
Then PS bit set happen twice before PS bit clear.
In this case, next time RX event scheduled, HW might
Power down state. Then ilegal register access may happen.
To avoid this, enable system level interrupt after celar PS bit.
Then bit set and clear will always sync.
Since DXE interrupt is level trigger interrupt,
this change is safe
Change-Id: Iab2553cc3de0ea29468779f84cef1101de3f2816
CRs-fixed: 506475
1 file changed