Hi,
I am trying to write a device driver that uses an external interrupt (one of the 16 irq lines) for the Freescale P1020 processor and I hope some of you can help. Am I suppose to setup a separate node in the dts and look for that node in my driver to setup the interrupt? Or does the dts interrupt declaration belong to the interrupt-controller declaration? I noticed the mpc8xxx_gpio driver defined its own irq_chip but I thought that may be because each gpio pin can trigger an interrupt. Do I need to define my own irq_chip structure for my device even if I am using one of the hard irq lines? Regards, Kenny
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