diff --git a/drivers/usb/typec/tcpm/tcpci.c b/drivers/usb/typec/tcpm/tcpci.c
index 34b5095cc84f..22862345d1ab 100644
--- a/drivers/usb/typec/tcpm/tcpci.c
+++ b/drivers/usb/typec/tcpm/tcpci.c
@@ -115,7 +115,8 @@ static int tcpci_set_cc(struct tcpc_dev *tcpc, enum typec_cc_status cc)
 	return 0;
 }
 
-int tcpci_apply_rc(struct tcpc_dev *tcpc, enum typec_cc_status cc, enum typec_cc_polarity polarity)
+static int tcpci_apply_rc(struct tcpc_dev *tcpc, enum typec_cc_status cc,
+			  enum typec_cc_polarity polarity)
 {
 	struct tcpci *tcpci = tcpc_to_tcpci(tcpc);
 	unsigned int reg;