Raspberry 4 Charger for Pinephone?

[wibble]

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Megous recommends basic chargers using the Battery Charging spec as being more reliable than ones supporting Power Delivery. The BC ones will 'Just Work'™ while the PD ones need the right combination of ANX firmware and kernel driver support. Details here: https://xnux.eu/devices/feature/anx7688.html

So I understand anx7688 is a driver handling the charging process. The description says:

In some configurations (with 3A USB-C PD charger) AXP803 resets the VBUS input current limit by itself to 500mA, so PP will not charge (much)

• Forcing the input current limit back up leads to instability (looks like AXP is resetting the limit due to voltage drop on VBUS) and input current fluctuates between 0 and ~1.3A
  

Is there a way to check if that happened? And if so, it can't be fixed since fixing leads to instability? That means a problem, right?

Or am I wrong with this assumption?

That page is possibly a little outdated regarding state-of-the-art - see https://xnux.eu/log/#026 for an update. It can take a while for Megous' changes to make it either to the upstream kernel or the various distros though. You should be able to get some idea what's happening on your phone using:

Code:

cat /sys/class/power_supply/axp*/uevent