drm/i915: Move scaler setup to check crtc function, v2.

The scaler setup may add planes, but since they're unchanged we only
have to wait for primary flips. Also set planes_changed to indicate
at least 1 plane is modified.

Changes since v1:
- Instead of removing planes, do minimal validation needed.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Tested-by(IVB): Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 9 insertions, 8 deletions

diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c
index 6ab71ea..d5afc2aa 100644
--- a/drivers/gpu/drm/i915/intel_atomic.c
+++ b/drivers/gpu/drm/i915/intel_atomic.c
@@ -100,14 +100,6 @@ int intel_atomic_check(struct drm_device *dev,
 	if (ret)
 		return ret;
 
-	/*
-	 * FIXME: move to crtc atomic check function once this is
-	 * more atomic friendly.
-	 */
-	ret = intel_atomic_setup_scalers(dev, nuclear_crtc, crtc_state);
-	if (ret)
-		return ret;
-
 	return ret;
 }
 
@@ -349,6 +341,15 @@ int intel_atomic_setup_scalers(struct drm_device *dev,
 						plane->base.id);
 					return PTR_ERR(state);
 				}
+
+				/*
+				 * the plane is added after plane checks are run,
+				 * but since this plane is unchanged just do the
+				 * minimum required validation.
+				 */
+				if (plane->type == DRM_PLANE_TYPE_PRIMARY)
+					intel_crtc->atomic.wait_for_flips = true;
+				crtc_state->base.planes_changed = true;
 			}
 
 			intel_plane = to_intel_plane(plane);