Add a .poll_init() function that enables UART RX and registers the
UART's irq with KGDB. By providing this information to KGDB the serial
driver offers "permission" for KGDB to route the UART interrupt signal
from the drivers own handler to KGDBs FIQ handler (which will eventually
use the UART's
Add a .poll_init() function that enables UART RX and registers the
UART's irq with KGDB. By providing this information to KGDB the serial
driver offers permission for KGDB to route the UART interrupt signal
from the drivers own handler to KGDBs FIQ handler (which will eventually
use the UART's
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