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| author |   Ville Syrjälä <ville.syrjala@linux.intel.com> | 2020-02-06 22:12:03 +0200 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2020-09-14 16:49:19 +0300 |
| commit | 23d3e3799fb031f5eff5855c3df8e58e3a40001b (patch) | |
| tree | e5e2915f3495d657641212a9983a17720ec93932 /drivers/gpu/drm/i915/display/intel_dp_mst.c | |
| parent | drm/i915: Nuke CACHE_MODE_0 save/restore (diff) | |
| download | linux-dev-23d3e3799fb031f5eff5855c3df8e58e3a40001b.tar.xz linux-dev-23d3e3799fb031f5eff5855c3df8e58e3a40001b.zip | |
drm/i915: Fix g4x+ sprite dotclock limit for upscaling
Even if we're not doing downscaling we should account for
some of the extra dotclock limitations for g4x+ sprites. In
particular we must never exceed the 90% rule, and with RGB
that limits actually drops to 80%.
So instead of bailing out when upscaling let's clamp the
scaling factor appropriately and go through the rest of
calculation normally. By luck we already did the full
calculations for the 1:1 case.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200206201204.31704-1-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_dp_mst.c')
0 files changed, 0 insertions, 0 deletions