diff --git a/drivers/usb/typec/altmodes/displayport.c b/drivers/usb/typec/altmodes/displayport.c
index 1b2afeb1eeb64..4092248a5936d 100644
--- a/drivers/usb/typec/altmodes/displayport.c
+++ b/drivers/usb/typec/altmodes/displayport.c
@@ -14,7 +14,7 @@
 #include <linux/usb/pd_vdo.h>
 #include <linux/usb/typec_dp.h>
 
-#define DP_HEADER(cmd)			(VDO(USB_TYPEC_DP_SID, 1, cmd) | \
+#define DP_HEADER(_dp, cmd)		(VDO((_dp)->alt->svid, 1, cmd) | \
 					 VDO_OPOS(USB_TYPEC_DP_MODE))
 
 enum {
@@ -155,7 +155,7 @@ static int dp_altmode_configured(struct dp_altmode *dp)
 
 static int dp_altmode_configure_vdm(struct dp_altmode *dp, u32 conf)
 {
-	u32 header = DP_HEADER(DP_CMD_CONFIGURE);
+	u32 header = DP_HEADER(dp, DP_CMD_CONFIGURE);
 	int ret;
 
 	ret = typec_altmode_notify(dp->alt, TYPEC_STATE_SAFE, &dp->data);
@@ -193,7 +193,7 @@ static void dp_altmode_work(struct work_struct *work)
 			dev_err(&dp->alt->dev, "failed to enter mode\n");
 		break;
 	case DP_STATE_UPDATE:
-		header = DP_HEADER(DP_CMD_STATUS_UPDATE);
+		header = DP_HEADER(dp, DP_CMD_STATUS_UPDATE);
 		vdo = 1;
 		ret = typec_altmode_vdm(dp->alt, header, &vdo, 2);
 		if (ret)
@@ -507,7 +507,7 @@ static const struct attribute_group dp_altmode_group = {
 	.attrs = dp_altmode_attrs,
 };
 
-static int dp_altmode_probe(struct typec_altmode *alt)
+int dp_altmode_probe(struct typec_altmode *alt)
 {
 	const struct typec_altmode *port = typec_altmode_get_partner(alt);
 	struct dp_altmode *dp;
@@ -545,14 +545,16 @@ static int dp_altmode_probe(struct typec_altmode *alt)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(dp_altmode_probe);
 
-static void dp_altmode_remove(struct typec_altmode *alt)
+void dp_altmode_remove(struct typec_altmode *alt)
 {
 	struct dp_altmode *dp = typec_altmode_get_drvdata(alt);
 
 	sysfs_remove_group(&alt->dev.kobj, &dp_altmode_group);
 	cancel_work_sync(&dp->work);
 }
+EXPORT_SYMBOL_GPL(dp_altmode_remove);
 
 static const struct typec_device_id dp_typec_id[] = {
 	{ USB_TYPEC_DP_SID, USB_TYPEC_DP_MODE },
diff --git a/drivers/usb/typec/altmodes/displayport.h b/drivers/usb/typec/altmodes/displayport.h
new file mode 100644
index 0000000000000..e120364da9fd4
--- /dev/null
+++ b/drivers/usb/typec/altmodes/displayport.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if IS_ENABLED(CONFIG_TYPEC_DP_ALTMODE)
+int dp_altmode_probe(struct typec_altmode *alt);
+void dp_altmode_remove(struct typec_altmode *alt);
+#else
+int dp_altmode_probe(struct typec_altmode *alt) { return -ENOTSUPP; }
+void dp_altmode_remove(struct typec_altmode *alt) { }
+#endif /* CONFIG_TYPEC_DP_ALTMODE */