: c7a472297169156252a50d76965eb36b081186e2
patch link:
https://lore.kernel.org/r/20230721-drm-bridge-chain-debugfs-v1-1-8614ff7e890d%40ideasonboard.com
patch subject: [PATCH] drm/bridge: Add debugfs print for bridge chains
config: x86_64-randconfig-r032-20230720
(https://download.01.org/0day-ci/archive/20230721
DRM bridges are not visible to the userspace and it may not be
immediately clear if the chain is somehow constructed incorrectly. I
have had two separate instances of a bridge driver failing to do a
drm_bridge_attach() call, resulting in the bridge connector not being
part of the chain. In some sit
