ANC_FIR_IIR_CONFIGURED
drvdata->anc_status = ANC_FIR_IIR_CONFIGURED;
else if (drvdata->anc_status != ANC_FIR_IIR_CONFIGURED)
drvdata->anc_status = ANC_FIR_IIR_CONFIGURED;
else if (drvdata->anc_status != ANC_FIR_IIR_CONFIGURED)