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+---- Thread: How to use dts or other setup to declare gpio pin Interrupt (e.g. a button)? (/showthread.php?tid=7589)
How to use dts or other setup to declare gpio pin Interrupt (e.g. a button)? - dkebler - 06-11-2019
Using armbian bionic mainline kernel on A64-v1.1 board
Linux pine64 4.19.38-sunxi64 #5.83 SMP Fri May 3 21:02:31 CEST 2019 aarch64 aarch64 aarch64 GNU/Linux
In RPI bionic could just set values in boot.txt. Is this possible in armbian bionic mainline?
I know that one can use device tree overlays but can't find any examples specific to the A64.
Anyone have a dts file or otherwise know how to declare a pin as an interruptible input? I've come across nothing in any A64 docs.
RE: How to use dts or other setup to declare gpio pin Interrupt (e.g. a button)? - dkebler - 06-12-2019
Looks like I tracked down an example dts file here
https://github.com/armbian/sunxi-DT-overlays/blob/master/examples/gpio-button.dts
here is more explanation of how to implment
https://docs.armbian.com/Hardware_Allwinner_overlays/#using-custom-overlays
Still need to edit, compile and try it, but at least good example to go from