Can I charge iPhone 12 mini with 2020 MacBook Air power adaptor?
iphone 12 mini and 2020 Macbook Air M1.
Can I charge iPhone 12 mini with 2020 MacBook Air power adaptor and the cable that came with the iPhone 12 mini?
Question marked as
Yes. See the following from Charge your iPhone with an iPad or Mac notebook power adapter - Apple Support
You can use Apple USB power adapters for iPad and Mac notebooks to charge iPhone, iPod, Apple Watch, AirPods, and other Apple products.
Also see: Fast charge your iPhone - Apple Support