(In reply to Itzamna from comment #3)
> Hello Alex,
> 
> Sadly, your patch does not fix HDMI audio on my machine (kernel 4.0.4;
> Radeon HD 7970). Reverting commit 8ffea8570d5a7e9dd3c10349ebc3bd79487ae30b
> does fix the issue.

Sorry, I missed the 7970 part.  This patch is not relevant to your board.  It
should fix James's issue.