diff --git a/sound/soc/codecs/cs4270.c b/sound/soc/codecs/cs4270.c
index 59bb16d..565842d 100644
--- a/sound/soc/codecs/cs4270.c
+++ b/sound/soc/codecs/cs4270.c
@@ -520,6 +520,7 @@
 	SOC_SINGLE("Digital Sidetone Switch", CS4270_FORMAT, 5, 1, 0),
 	SOC_SINGLE("Soft Ramp Switch", CS4270_TRANS, 6, 1, 0),
 	SOC_SINGLE("Zero Cross Switch", CS4270_TRANS, 5, 1, 0),
+	SOC_SINGLE("De-emphasis filter", CS4270_TRANS, 0, 1, 0),
 	SOC_SINGLE("Popguard Switch", CS4270_MODE, 0, 1, 1),
 	SOC_SINGLE("Auto-Mute Switch", CS4270_MUTE, 5, 1, 0),
 	SOC_DOUBLE("Master Capture Switch", CS4270_MUTE, 3, 4, 1, 1),