Add Rp2040 suspend & resume support #1020
Merged
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Describe the PR
This PR update rp2040 devvice
hopefully fix adafruit/circuitpython#4190, adafruit/circuitpython#5101
Additional context
Currently rp2040 force vbus detect making it difficult to distinguish between Disconnection and Suspend (both are idle bus). Disconnection can be determined by having extra GPIO to check vbus. In case of pico it is GPIO24, however, not all boards implement this on their schematics.
Note: Other MCUs such as samd and esp32s2/s3 has similar issue as well, will try to find an common API to resolve this in future PR