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how to use p4040's external irq?

Question asked by ma changbao on May 21, 2013
Latest reply on Jun 17, 2013 by Yiding Li

hi all,

i have an problem about external interrupt 0 on p4040.

since i know that p4040's interrupt controller is similar witch p2010's in user manual , but when I use the previous p2010's method, request_irq() always fail.

anyone give me a p4040 external interrupt 0 demo routine, including external interrupt register routine and its device tree node description.

Any help is appreciated!


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