BBB - tda998x - sii9022a

Hi,

I am trying to debug beagle bone black QNX Graphics driver code (HDMI), the code I am using is dated back to 2012 …I see the code is referencing to sii9022a chip instead of tda998x …
Any idea ? Both are compatible or any older BBB hardware version had this chip ?

Regards,
Varghese.