Touch proven with real events, not a device node: three layers, the last
being runtime report activation gated to D11 so D10 went silent a second
after boot.
adp binds on 206200000.display-pipe with card1-DSI-1 — the first DRM
display pipe on this hardware; everyone else scans a dumb framebuffer.
Still unused because m1n1 re-enables /chosen/framebuffer and udev then
hands viewtop simpledrm.
Kernel patch kept as evidence; hoolock/ is not a repo.
