drm: Add support for optional per-plane rotation property
Not all planes on the system may support the same rotations/reflections,
so make it possible to create a separate property for each plane.
This way userspace gets told exactly which rotations/reflections are
possible for each plane.
v2: Add drm_plane_create_rotation_property() helper
v3: Drop the BIT(), __builtin_ffs(x) - 1,
Moar WARNs for bad parameters
Deal with superfluous code shuffling
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (v1)
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1474907460-10717-4-git-send-email-ville.syrjala@linux.intel.com
diff --git a/include/drm/drm_blend.h b/include/drm/drm_blend.h
index bb49341..fd35192 100644
--- a/include/drm/drm_blend.h
+++ b/include/drm/drm_blend.h
@@ -54,6 +54,9 @@
struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
unsigned int supported_rotations);
+int drm_plane_create_rotation_property(struct drm_plane *plane,
+ unsigned int rotation,
+ unsigned int supported_rotations);
unsigned int drm_rotation_simplify(unsigned int rotation,
unsigned int supported_rotations);