DAI_POLARITY_NF
case DAI_POLARITY_NB|DAI_POLARITY_NF:
case DAI_POLARITY_IB|DAI_POLARITY_NF:
pol |= DAI_POLARITY_NF;
case DAI_POLARITY_IB|DAI_POLARITY_NF:
case DAI_POLARITY_NB|DAI_POLARITY_NF:
pol |= DAI_POLARITY_NF;