I want/need to rework the core property handling, and this hack is
getting in the way. But since it's a non-standard propety only used by
legacy userspace we know that this will only every be called from
ioctl code. And never on some other free-standing state struct, where
this old hack wouldn't work either.

v2: don't forget zorder and get_property!

Cc: Tomi Valkeinen <tomi.valkei...@ti.com
Cc: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vet...@intel.com>
---
 drivers/gpu/drm/omapdrm/omap_crtc.c | 64 ++++++++++++++++---------------------
 1 file changed, 28 insertions(+), 36 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c 
b/drivers/gpu/drm/omapdrm/omap_crtc.c
index 14e8a7738b06..efa525442e7d 100644
--- a/drivers/gpu/drm/omapdrm/omap_crtc.c
+++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
@@ -498,39 +498,30 @@ static void omap_crtc_atomic_flush(struct drm_crtc *crtc,
        spin_unlock_irq(&crtc->dev->event_lock);
 }
 
-static bool omap_crtc_is_plane_prop(struct drm_crtc *crtc,
-       struct drm_property *property)
-{
-       struct drm_device *dev = crtc->dev;
-       struct omap_drm_private *priv = dev->dev_private;
-
-       return property == priv->zorder_prop ||
-               property == crtc->primary->rotation_property;
-}
-
 static int omap_crtc_atomic_set_property(struct drm_crtc *crtc,
                                         struct drm_crtc_state *state,
                                         struct drm_property *property,
                                         uint64_t val)
 {
-       if (omap_crtc_is_plane_prop(crtc, property)) {
-               struct drm_plane_state *plane_state;
-               struct drm_plane *plane = crtc->primary;
-
-               /*
-                * Delegate property set to the primary plane. Get the plane
-                * state and set the property directly.
-                */
-
-               plane_state = drm_atomic_get_plane_state(state->state, plane);
-               if (IS_ERR(plane_state))
-                       return PTR_ERR(plane_state);
+       struct omap_drm_private *priv = crtc->dev->dev_private;
+       struct drm_plane_state *plane_state;
 
-               return drm_atomic_plane_set_property(plane, plane_state,
-                               property, val);
-       }
+       /*
+        * Delegate property set to the primary plane. Get the plane
+        * state and set the property directly.
+        */
+       plane_state = drm_atomic_get_plane_state(state->state, crtc->primary);
+       if (IS_ERR(plane_state))
+               return PTR_ERR(plane_state);
+
+       if (property == crtc->primary->rotation_property)
+               plane_state->rotation = val;
+       else if (property == priv->zorder_prop)
+               plane_state->zpos = val;
+       else
+               return -EINVAL;
 
-       return -EINVAL;
+       return 0;
 }
 
 static int omap_crtc_atomic_get_property(struct drm_crtc *crtc,
@@ -538,16 +529,17 @@ static int omap_crtc_atomic_get_property(struct drm_crtc 
*crtc,
                                         struct drm_property *property,
                                         uint64_t *val)
 {
-       if (omap_crtc_is_plane_prop(crtc, property)) {
-               /*
-                * Delegate property get to the primary plane. The
-                * drm_atomic_plane_get_property() function isn't exported, but
-                * can be called through drm_object_property_get_value() as that
-                * will call drm_atomic_get_property() for atomic drivers.
-                */
-               return drm_object_property_get_value(&crtc->primary->base,
-                               property, val);
-       }
+       struct omap_drm_private *priv = crtc->dev->dev_private;
+
+       /*
+        * Remap to the plane rotation/zorder property. We can peek at the plane
+        * state directly since holding the crtc locks gives you a read-lock on
+        * the plane state.
+        */
+       if (property == crtc->primary->rotation_property)
+               return crtc->primary->state->rotation;
+       else if (property == priv->zorder_prop)
+               return crtc->primary->state->zpos;
 
        return -EINVAL;
 }
-- 
2.13.3

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