DTO interrupt can be later than transmit interrupt(IDMAC) in case of
write. Current handling of IDMAC interrupt sets EVENT_DATA_COMPLETE as
well as EVENT_XFER_COMPLETE regardless of DTO rising. This makes the
current request finish in tasklet and permits the next request even
though current data transfer is still in progress. As a result, sequence
is broken and lock-up happens. Setting EVENT_DATA_COMPLETE is not proper
after IDMAC interrupt. It should be taken after DTO interrupt is
generated.
Reported-by: NDmitry Shmidt <dimitrysh@android.com>
Signed-off-by: NSeungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: NHyeonsu Kim <hyeonsu.kim@samsung.com>
Acked-by: NWill Newton <will.newton@imgtec.com>
Signed-off-by: NChris Ball <cjb@laptop.org>