drm/i915: Disable the plane if initial plane config readout failed

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Properly turn off the plane if it is enabled but
.get_initial_plane_config() failed for whatever reason.

The hardware does (or at least did) perform some kind of automagic
plane disable when the pipe gets disabled, but we don't rely on that
anywhere else either. Also the GGTT/actual memory may get clobbered
afterwards, so leaving the plane enabled here could result in visual
corruption/GTT faults/etc.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patch.msgid.link/20260511214122.8468-2-ville.syrjala@linux.intel.com
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>

...

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Ville Syrjälä 2026-05-12 00:41:09 +03:00 • committed by Maarten Lankhorst

parent 0c59cc7824

commit 466fa6902e

1 changed files with 3 additions and 3 deletions

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drivers/gpu/drm/i915/display/intel_initial_plane.c

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