I’m trying to configure a push button on running on port I 2 (gpio 66 in linux). The gpio key registers correctly but when I press or release the button it takes circa 1 second to register the two interrupts. I put a small printk in the driver isr to verify it was not lagging somewhere else.
Oddly enough I have two other keys on H 6 and B 2 which work perfectly - also with the printk the interrupt routine fires instantly, whereas with I 2 it just lags.
I’m running kernel 4.4 on 24.2, but unfortunately right now upgrading is not an option.