drm/i915/adl_p: Disable FIFO underrun recovery

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The FIFO underrun recovery mechanism has a boatload of cases
where it can't be used. The description is also a bit ambiguous
as it doesn't specify whether plane downscaling needs to be considered
or just pipe downscaling. We may not even have sufficient state
tracking to decide this on demand, so for now just disable the
whole thing.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210526173600.27708-1-ville.syrjala@linux.intel.com
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>

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Ville Syrjälä 2021-05-26 20:35:59 +03:00

parent 71c320206a

commit d091fc53eb

2 changed files with 16 additions and 0 deletions

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15

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

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1

drivers/gpu/drm/i915/i915_reg.h

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