Adding support for audio (WM1811) Inbox

[Mighty M]

I've been trying to add audio support to my device,
samsung-espresso3g, but cannot seem to wrap my head around it. Other
devices in mainline are other exynos samsung's (aries/midas/arndale) all of
which have some drivers in mainline, while mine is an omap. I would
like to know how would I start adding the support. Here's the
downstream driver
https://github.com/Unlegacy-Android/android_kernel_ti_omap4/blob/3.0/common/sound/soc/omap/espresso.c
Any help would be appreciated. Audio is very confusing
Thanks a lot!

Best Regards,
Mighty.