TouchAlarm on Qt Py ESP32-S2 not working in SLEEP mode

[mikeysklar]

CircuitPython version

Adafruit CircuitPython 8.1.0-rc.0 on 2023-05-17; Adafruit QT Py ESP32S2 with ESP32S2

Code/REPL

import alarm
import board

print(alarm.wake_alarm)

touch_alarm = alarm.touch.TouchAlarm(board.A2)

alarm.exit_and_deep_sleep_until_alarms(touch_alarm)

Behavior

The code runs, but does not wakeup upon pin touch.

Description

Forum thread based on Adafruit example code.

Additional information

I also reproduced on a Qt Py ESP32-S2 with current bootloader 0.13.0 and current beta CircuitPython 8.1.0-rc.0

[rxhfcy]

Consider adding the esp32-s2 label?

[dhalbert]

This appears to have stopped working between 7.1.0 and 7.2.0. I'll bisect.

[dhalbert]

Apparently due to 13db655:

Pin reset is now changed to the IDF default which pulls the pin up rather than CircuitPython's old behavior of floating the pin.

So we need to special-case any TouchAlarm pins.

[dhalbert]

2bc8d73, which is past 13db655, also causes TouchAlarm not to work. If I prevent the touch awaking pin from being reset, then 13db655 and forward works, up to but not including 2bc8d73 does not. 2bc8d73 is part of #6772.

So still working on this.