drm/i915: enable trickle feed on Haswell

[karo-tx-linux.git] / drivers / gpu / drm / i915 / intel_sprite.c

diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
index 78b621cdd108f13ae061c27a1499df71c84da5bd..ad6ec4b39005e8c6bfe6a41f65be48eaf4c7ebc6 100644 (file)
--- a/drivers/gpu/drm/i915/intel_sprite.c
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -260,8 +260,11 @@ ivb_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
        if (obj->tiling_mode != I915_TILING_NONE)
                sprctl |= SPRITE_TILED;
 
-       /* must disable */
-       sprctl |= SPRITE_TRICKLE_FEED_DISABLE;
+       if (IS_HASWELL(dev))
+               sprctl &= ~SPRITE_TRICKLE_FEED_DISABLE;
+       else
+               sprctl |= SPRITE_TRICKLE_FEED_DISABLE;
+
        sprctl |= SPRITE_ENABLE;
 
        if (IS_HASWELL(dev))