I noticed that our kernel doesn't enable AMD SPI driver. This could be the reason of the lack of Cirrus codec discovery. I'm building a test kernel with CONFIG_SPI_AMD in OBS home:tiwai:bsc1201418 repo. Could you give this a try later? After the build finishes, it'll appear at: http://download.opensuse.org/repositories/home:/tiwai:/bsc1201418/standard/