Commits
Ville Syrjälä committed dfd2e9ab6a7
drm/i915: Check PSR setup time vs. vblank length Bspec says: "Restriction : SRD must not be enabled when the PSR Setup time from DPCD 00071h is greater than the time for vertical blank minus one line." Let's check for that and disallow PSR if we exceed the limit. Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Dave Airlie <airlied@redhat.com>