I am trying to get the external interrupt 0 on gpio 1 usiing irq 28.
when i call request_irq from the gpio driver (using as module) to register the interrupt handler
i see the call hangs up somewhere and does not return.
I have verified that the content of "Control and Status regsiter" at 0xA090_2000 and
"System Control Module" register at 0xA0900214 as per the ns9210 hardware manual.
is there any other configuration to be done to successfully register the irq and get the external interrupt.
Note: External interrupt to be generated by radio module CC1101 on gpio 1.