Part Number:AM4376
Tool/software: Linux
Hi everyone,
I'm having an issue on a custom board using AM4376, linux 4.4.19, with WoW not working. We want to change the interrupt pin, which is gpio0[19] in TI documentation (cf patch in following link), to gpio0[14].
The problem come from the interrupt pin not working as expected. For easy debugging we've put a button on gpio0[14] (K21). Value is set to 1 by default, and set to 0 when pushed.
We put our board in suspend to ram using "echo mem > /sys/power/state", and try to wake up using out button, but this is not working (nothing happen). For information, we can successfully wake up using uart0.
I've modified DTS following this documentation , and more precisely this patch.
I've made the same test on several available GPIO (gpio4[8] and gpio 4[11]), with the same result.
The main question is: can we use another GPIO than gpio0[19] as mentioned in the patch ? Do we need to configure something else than DTB ?
Thanks for your help.
Best regards,
J.L.