NAU8821_CLK_INTERNAL
ret = snd_soc_dai_set_sysclk(codec_dai, NAU8821_CLK_INTERNAL,
ret = snd_soc_dai_set_sysclk(dai, NAU8821_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN);
nau8821_configure_sysclk(nau8821, NAU8821_CLK_INTERNAL, 0);
case NAU8821_CLK_INTERNAL:
NAU8821_CLK_INTERNAL, 0);