Hi, I am trying to do similar to this post but on the 820c and with i2c:
I can get to probe the device, but I’m not sure what to put in for values in the device tree properties for:
interrupt-parent = <&gpio12>;
interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
Where does 7 for an IRQ come from? I’ve got one Gpio 21 connected to the IRQ pin on the MAX14380. Can anyone explain the above two properties to a device tree newbie?