[Intel-gfx] ✗ Fi.CI.BAT: failure for Fix legacy DPMS changes with MST (rev4)

[Patchwork]

== Series Details ==

Series: Fix legacy DPMS changes with MST (rev4)
URL   : https://patchwork.freedesktop.org/series/49878/
State : failure

== Summary ==

Applying: drm/atomic_helper: Disallow new modesets on unregistered connectors
Applying: drm/nouveau: Fix nv50_mstc->best_encoder()
Applying: drm/i915: Leave intel_conn->mst_port set, use mst_port_gone instead
Applying: drm/i915: Skip vcpi allocation for MSTB ports that are gone
error: sha1 information is lacking or useless (drivers/gpu/drm/i915/intel_dp_mst.c).
error: could not build fake ancestor
Patch failed at 0004 drm/i915: Skip vcpi allocation for MSTB ports that are gone
Use 'git am --show-current-patch' to see the failed patch
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".