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GPIO2 irq interrupt question

Question asked by cao ping on Apr 26, 2013
Latest reply on Apr 26, 2013 by Wigros Sun


     now we use imx53 to develop,and software environment is linux, and we want to response a rising interrupt of 14 pin of GPIO2(IRQ number in datasheet is 52),Once we set ICR14 of GPIO2 to "0x10",and set the 14 bit of GPIO2_IMR to "1",when we use "request_irq(irq, irq_handle_function,0, interface, NULL)" in driver,and the return value is 0xfffffffea,and then the serial terminal displays"failed",Does anyone meet this!