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drm/i915: add missing condition for committing planes on crtc

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The i915 driver checks for color management properties changes as part
of a plane update. Therefore a color management update must imply a
plane update, otherwise we never update the transformation matrixes
and degamma/gamma LUTs.

v2: add comment about moving the commit of color management registers
    to an async worker

v3: Commit color management register right after vblank

v4: Move back color management commit condition together with planes
    commit

v5: Trigger color management commit through the planes commit (Daniel)

v6: Make plane change update more readable

Fixes: 20a34e78f0 (drm/i915: Update color management during vblank evasion.)
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: drm-intel-fixes@lists.freedesktop.org
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
References: https://lkml.org/lkml/2016/7/14/614
Reviewed-and-tested-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1464183041-8478-1-git-send-email-lionel.g.landwerlin@intel.com
(cherry picked from commit e7852a4b3a)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Lionel Landwerlin 2016-05-25 14:30:41 +01:00 committed by Daniel Vetter
parent c71d4d5898
commit ed2eebbd61
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/i915/intel_display.c
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@ -11997,6 +11997,12 @@ static int intel_crtc_atomic_check(struct drm_crtc *crtc,
ret = intel_color_check(crtc, crtc_state);
if (ret)
return ret;
/*
* Changing color management on Intel hardware is
* handled as part of planes update.
*/
crtc_state->planes_changed = true;
}
ret = 0;