drm/i915: Switch plane properties to full atomic helper.

This will exercise our atomic pipeline for legacy property updates.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c
index 4a3914f1cdee..9e6f727dfd19 100644
--- a/drivers/gpu/drm/i915/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/intel_atomic_plane.c
@@ -118,6 +118,15 @@ static int intel_plane_atomic_check(struct drm_plane *plane,
         intel_crtc = to_intel_crtc(crtc);
 
         /*
+         * Both crtc and plane->crtc could be NULL if we're updating a
+         * property while the plane is disabled.  We don't actually have
+         * anything driver-specific we need to test in that case, so
+         * just return success.
+         */
+        if (!crtc)
+                return 0;
+
+        /*
          * The original src/dest coordinates are stored in state->base, but
          * we want to keep another copy internal to our driver that we can
          * clip/modify ourselves.