nPM1300 interrupt line always stays high even after clearing events

RE: nPM1300 interrupt line always stays high even after clearing events

runsiv — Fri, 09 May 2025 08:26:45 GMT

Glad to hear it worked for you

Don't hesitate to create new cases if there any other question in the future

Regards

Runar

RE: nPM1300 interrupt line always stays high even after clearing events

PuffinEgg — Thu, 08 May 2025 19:18:08 GMT

Thank you! That was the issue. I forgot to clear the event prior to enabling the interrupt.

RE: nPM1300 interrupt line always stays high even after clearing events

runsiv — Thu, 08 May 2025 06:47:51 GMT

Update:

What we do in the zephyr driver before enabling an interrupt is clear the corresponding event first.

setup:
pmic_write(0x602, 0x5);  // Set GPIO2 to output interrupt
pmic_write(0x017, 0x1);  // Clear the event
pmic_write(0x018, 0x1);  // Enable interrupt on the event

and then in the interrupt 

pmic_write(0x017, 0x1);  // Clear the event
do_stuff();

We would also recommend verifying that the handler is actually executed as it might also be an misconfigured interrupt input on the host side.

Regards

Runar

RE: nPM1300 interrupt line always stays high even after clearing events

runsiv — Wed, 07 May 2025 16:56:27 GMT

I have asked internally and will update when I hear back

Regards

Runar