Kernel getting tainted in Zeus when integrating bcmdhd driver

[sd05]

I am trying to integrate the bcmdhd driver in the Zeus linux-imx kernel, getting linking error for wifi_card_detect and sdio_reset_conn symbols, so I tried to add definition as per the earlier version this solves the compilation issue. But when I am getting issue in card detection when I tried to load module, the kernel is getting tainted(refer the logs )
I am using - imx6ull based custom board 

[igorpadykov]

Hi sd05

for tainted kernel issue may be useful to look at

https://support.hpe.com/hpesc/public/docDisplay?docId=c02905321&docLocale=en_US

Best regards
igor