drm/i915: Simplify ilk-ivb underrun suppression
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Thu, 24 May 2018 19:04:06 +0000 (22:04 +0300)
committerVille Syrjälä <ville.syrjala@linux.intel.com>
Fri, 25 May 2018 19:19:29 +0000 (22:19 +0300)
commit2b5b63126ef4037a576bc8f9954629dc22274ad2
treed344795d000fce7460fd1966ebbe24cb40c9d179
parentca3b3fa344476c640712aa9c49b5bc3b350f2584
drm/i915: Simplify ilk-ivb underrun suppression

Let's suppress the underruns around every modeset sequence instead
of trying to avoid it. Planes are disabled at this point anyway so
we don't really gain anything from keeping the underrun reporting
enabled. Also for PCH ports we already suppress all underruns here
anyway so trying avoid it for the CPU eDP doesn't seem all that
important.

Maybe this gets rid of some lingering spurious underruns?

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180524190406.2973-2-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
drivers/gpu/drm/i915/intel_display.c