wake-on-interrupt and NRF_GPIO->LATCH

[Mark Rages]

What is the recommended way to clear the retained LATCH register using the zephyr generic GPIO functions after waking on interrupt from system OFF?  It does not appear to be cleared automatically or through the nRF GPIO driver.

I have hacked in the raw port manipulation now, so that I can sleep again without immediately waking up because of the set LATCH.  But this is not the cowboy way.

[Simonr]

Hi

I think that if you set the sense-edge-mask property on your GPIO node in .dts, that should let you clear the LATCH register "correctly" with a GPIO. Are you using the Zephyr GPIO driver in active mode as well?

Best regards,

Simon