How can set a gpio pin to IRQ line at TX1 r28.2

How can set a gpio pin to IRQ line at TX1 r28.2

Now i will use PV6 to one gpio ping ,and can get IRQ interrupt,How can I write the dtsi and kernel device file?

Have a reference to below link.

https://devtalk.nvidia.com/default/topic/1023834/?comment=5209339