OK, it seems that the format is correct. HW registers also seems to be programmed correctly. Documentation is not helpful at all, at least for me [1]. The only guess I have is that tile format produced by MFC is different than format accepted by MIXER in regard of chroma. Unfortunately I am too busy now to investigate it deeper. Maybe next week I will be able to consult it with sbd more competent in the subject. [1]: https://usermanual.wiki/Document/SECExynos4412Users20ManualVer10000.544818918.pdf