Due to IM53 IPU VDIC hardware limitation, the input and output size for VDIC is 968*1024, so for 1080i, it can't be supported ditectly, we need use split mode to support 1080i de-interlace.
The related patched can be downloaded from my blog: http://imxcommunity.org/profiles/blogs/1080i-de-interlance-support-for-imx53-based-on-l2-6-35-11-09-...
Did not find your blog. Coud you update your link?