neo1973_gta02_voice_hw_params
 uses codec_dai

neo1973_gta02_voice_hw_free
 uses codec_dai

set_pll == NULL

wm8753.c

add debug print to PLL code to figure out if some pll is left running
if we just ignore the oops.

add debug prints to free/init

why capture switches are both set to true but
DAI mode 1 supports only voice capture?