LPAIF_I2SCTL_LOOPBACK_SHIFT   17 sound/soc/qcom/lpass-lpaif-reg.h #define LPAIF_I2SCTL_LOOPBACK_DISABLE	(0 << LPAIF_I2SCTL_LOOPBACK_SHIFT)
LPAIF_I2SCTL_LOOPBACK_SHIFT   18 sound/soc/qcom/lpass-lpaif-reg.h #define LPAIF_I2SCTL_LOOPBACK_ENABLE	(1 << LPAIF_I2SCTL_LOOPBACK_SHIFT)