[PATCH] drm/i915: Error out when trying to set a y-tiled as a sprite

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From: Damien Lespiau <damien.lespiau at intel.com>

Signed-off-by: Damien Lespiau <damien.lespiau at intel.com>
---
 drivers/gpu/drm/i915/intel_sprite.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 3434b6e..aa8d09b 100644
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -465,6 +465,11 @@ intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
 	if (intel_plane->pipe != intel_crtc->pipe)
 		return -EINVAL;
 
+	/* Sprite planes can be linear or x-tiled surfaces */
+	if (!(obj->tiling_mode == I915_TILING_NONE ||
+	      obj->tiling_mode == I915_TILING_X))
+		return -EINVAL;
+
 	/*
 	 * Clamp the width & height into the visible area.  Note we don't
 	 * try to scale the source if part of the visible region is offscreen.
-- 
1.7.11.7



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