Fix GPIOTE not calling ISR when button is held during boot

[hubmartin]

Should solve Issue #693

Also improved previous similar issue with power detection 9ab298c

I welcome testing and feedback

[Riksu9000]

I wonder why the issue happened in the first place. If the events don't go through while the button is pressed, then why didn't releasing the button fix it?

If the nrf_gpio_cfg_sense_input() functions aren't necessary, would it make sense to remove the last one as well, so all the GPIO initializations are more similar?

[hubmartin]

If the nrf_gpio_cfg_sense_input() functions aren't necessary, would it make sense to remove the last one as well, so all the GPIO initializations are more similar?

Do not fix it if ain't broken :) Maybe I could. But I guess there should be added a check for touch IRQ level in the GPIOTE ISR. So it triggers touch event reading only once and not on both IRQ gpio edges. What is your opinion?

[JF002]

@Riksu9000

I wonder why the issue happened in the first place. If the events don't go through while the button is pressed, then why didn't releasing the button fix it?

There is a small note in the nrf52832 datasheet saying that the pin should not be in a state that would trigger the event when enabling it:

iirc I had this issue with the power detection too, and that's probably why I wrote 9ab298c.

Your fix works fine for me, and it looks good to me, thanks ;)