max732x。c I2C IO Expander + GPIO键w/ Linux设备树不工作。

I'm working with a Freescale MX6 and a 3.10.31 Freescale modified kernel. I have a Maxim MAX7325 used as an IO expander, which has pushbuttons attached to P0-P2. The interrupt line from the 7325 is attached to the GPIO_3 pad (which I believe is GPIO1_3...)I'm working with a Freescale MX6 and a 3.10.31