Are you running the power adapter firmware or powerbank firmware?
Is it default firmware or is there any modification?
For default kit firmware -
Please note that if you short VBUS_IN ans VBUS_P on J4, you cannot power the CCG3PA since VBUS_P comes from a buck-boost which has to be configured by CCG3PA itself. VBUS_P will be generated only when CCG3PA is already powered.
If you want to verify powering up CCG3PA from VBUS_IN, connect VBUS_IN to TYPE-C_VBUS (pin 2 and 3) on J4 and connect a power adapter / power source on the Type-C connector. It should get powered and charge any battery connected to the battery terminals.
Whenever the kit has a power-source by itself (like a charged battery / DC jack / power from DC terminals), it will prefer to be powered by VDDD.
Only during powerbank mode and dead battery situation, it can be powered by VBUS_IN connected to TYPE-C_VBUS.
Thanks for the info. I was running the default power adapter firmware on the CY4532 EVK. About the EVK, I see how it won't work due to the dependency that is needed on the regulator. As for our own PCB, I will update you soon on it as we were busy troubleshooting a different issue.
Thanks Rajath. I've tested it out on the EVK.