IMX6ULL GPIO5_IO1 not documented

Dear community, Looking at the GPIO naming convention for IMX6ULL (GPIO Alphanumeric to GPIO Numeric Assignment) I see that GPIO5_IO01 is not reported, it should be the 129. As far as I understand from the IMX6ULL datasheet that GPIO should be connected to the SODIMM PIN 45 (PIN 16 on the X9 connector for the Viola carrier Board).

Are there any issue with that GPIO?

Best regards,
Stefano.

By default it’s used as a wakeup source.

Thank you @alex.tx for the hint.
I try to use that pin as normal GPIO using sysfs and it work as expected.
What are the implication if we use that GPIO in our design?

Best regards,
Stefano.

Hi @SCordibella ,

is your goal to integrate this particular pin as a normal GPIO?

If so, I recommend you have a look at the Schematics of the Colibri Evaluation Board. There you see a lot of examples on how to do that.

Best Regards
Kevin

Hi @kevin.tx ,
thank you for your answer.
Yes, I want to use that pin as normal GPIO, do you have any concern about that?

Best regards,
Stefano.

Hi @SCordibella,

I do not see any concern about this pin being used as a normal GPIO.

Best Regards
Kevin