Gpio26 flood of interrupts

IoT Modules WP Series
1

I haven’t seen this one before. Getting blasted with gpio 26 interrupts, about 10 per second. I’m using a WP7702 and not using gpio26. In fact it appears to be unavailable for my use. Is this something the kernel uses? It appears to be cycling between sleep and wake very fast. Here is a part of the log entries, which go on forever. How can I shut these off?

Jan 13 17:37:51 swi-mdm9x28-wp user.err kernel: [ 2413.491025] swimcu_gpio_irq_event_handle: Re-enabled irq 1 type 9 for MCU GPIO 2
Jan 13 17:37:51 swi-mdm9x28-wp user.info kernel: [ 2413.497490] gpio_check_and_wake: wake-n_gpio26 STATE=SLEEP
Jan 13 17:37:51 swi-mdm9x28-wp user.info kernel: [ 2413.519191] gpio_check_and_wake: wake-n_gpio26 STATE=WAKEUP
Jan 13 17:37:51 swi-mdm9x28-wp user.err kernel: [ 2413.541662] swimcu_gpio_irq_event_handle: Re-enabled irq 1 type 9 for MCU GPIO 2
Jan 13 17:37:51 swi-mdm9x28-wp user.info kernel: [ 2413.548127] gpio_check_and_wake: wake-n_gpio26 STATE=SLEEP
Jan 13 17:37:51 swi-mdm9x28-wp user.info kernel: [ 2413.570326] gpio_check_and_wake: wake-n_gpio26 STATE=WAKEUP
Jan 13 17:37:52 swi-mdm9x28-wp user.err kernel: [ 2413.592902] swimcu_gpio_irq_event_handle: Re-enabled irq 1 type 9 for MCU GPIO 2
Jan 13 17:37:52 swi-mdm9x28-wp user.info kernel: [ 2413.599430] gpio_check_and_wake: wake-n_gpio26 STATE=SLEEP
Jan 13 17:37:52 swi-mdm9x28-wp user.info kernel: [ 2413.621460] gpio_check_and_wake: wake-n_gpio26 STATE=WAKEUP
Jan 13 17:37:52 swi-mdm9x28-wp user.err kernel: [ 2413.642194] swimcu_gpio_irq_event_handle: Re-enabled irq 1 type 9 for MCU GPIO 2
Jan 13 17:37:52 swi-mdm9x28-wp user.info kernel: [ 2413.650421] gpio_check_and_wake: wake-n_gpio26 STATE=SLEEP
Jan 13 17:37:52 swi-mdm9x28-wp user.info kernel: [ 2413.670889] gpio_check_and_wake: wake-n_gpio26 STATE=WAKEUP
Jan 13 17:37:52 swi-mdm9x28-wp user.err kernel: [ 2413.681134] swimcu_gpio_irq_event_handle: Re-enabled irq 1 type 9 for MCU GPIO 2
Jan 13 17:37:52 swi-mdm9x28-wp user.info kernel: [ 2413.687597] gpio_check_and_wake: wake-n_gpio26 STATE=SLEEP
Jan 13 17:37:52 swi-mdm9x28-wp user.info kernel: [ 2413.722023] gpio_check_and_wake: wake-n_gpio26 STATE=WAKEUP
Jan 13 17:37:52 swi-mdm9x28-wp user.err kernel: [ 2413.732677] swimcu_gpio_irq_event_handle: Re-enabled irq 1 type 9 for MCU GPIO 2
Jan 13 17:37:52 swi-mdm9x28-wp user.info kernel: [ 2413.749488] gpio_check_and_wake: wake-n_gpio26 STATE=SLEEP

2

This is just some internal interrupt from the MCU…
what is this actual effect to your application?

3

Thanks for responding jyijyi. This happens when I try to go into PSM. The system becomes very sluggish, taking for example 30 seconds to respond to a # cm radio command. Also, since it is flooding the log, there’s not a good way to see what’s going on with my application. But it doesn’t appear to go into PSM when this happens: the system is pulling about 30 amps vs the less than 1 I would expect, and doesn’t wake from PSM.

4

Sorry, make that 30 mA.

5

How did you make it to psm mode?
Using AT!powermode command?