It seems like this commit: media: sun6i-csi: Add bridge v4l2 subdev with port managementHas changed the way the media pipeline on a64 devices, in my case the PINE64 PinePhone works. Since this is an API towards userspace and there's active applications that use it I think this counts as a regression.
#regzbot introduced: 0d2b746b1bef73de62d2d311e594a7ffed4ca43 Greetings, Martijn Braam