diff --git a/drivers/mfd/cros_ec_dev.c b/drivers/mfd/cros_ec_dev.c
index 603b1cd52785..4996220ce64b 100644
--- a/drivers/mfd/cros_ec_dev.c
+++ b/drivers/mfd/cros_ec_dev.c
@@ -91,6 +91,10 @@ static const struct mfd_cell cros_usbpd_notify_cells[] = {
 	{ .name = "cros-usbpd-notify", },
 };
 
+static const struct mfd_cell cros_ec_wdt_cells[] = {
+	{ .name = "cros-ec-wdt", }
+};
+
 static const struct cros_feature_to_cells cros_subdevices[] = {
 	{
 		.id		= EC_FEATURE_CEC,
@@ -107,6 +111,11 @@ static const struct cros_feature_to_cells cros_subdevices[] = {
 		.mfd_cells	= cros_usbpd_charger_cells,
 		.num_cells	= ARRAY_SIZE(cros_usbpd_charger_cells),
 	},
+	{
+		.id		= EC_FEATURE_HANG_DETECT,
+		.mfd_cells	= cros_ec_wdt_cells,
+		.num_cells	= ARRAY_SIZE(cros_ec_wdt_cells),
+	},
 };
 
 static const struct mfd_cell cros_ec_platform_cells[] = {