diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 4d1133ffe0938871e285d9b5821ae2351f9d65ec..8a1020f6c9cc863eb8a9c3c6f138bf8ba73a61a1 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2862,6 +2862,8 @@ struct drm_i915_cmd_table {
 
 #define HAS_GMCH_DISPLAY(dev_priv) ((dev_priv)->info.has_gmch_display)
 
+#define HAS_LSPCON(dev_priv) (IS_GEN9(dev_priv))
+
 /* DPF == dynamic parity feature */
 #define HAS_L3_DPF(dev_priv) ((dev_priv)->info.has_l3_dpf)
 #define NUM_L3_SLICES(dev_priv) (IS_HSW_GT3(dev_priv) ? \
@@ -3629,6 +3631,9 @@ bool intel_bios_is_port_dp_dual_mode(struct drm_i915_private *dev_priv, enum por
 bool intel_bios_is_dsi_present(struct drm_i915_private *dev_priv, enum port *port);
 bool intel_bios_is_port_hpd_inverted(struct drm_i915_private *dev_priv,
 				     enum port port);
+bool intel_bios_is_lspcon_present(struct drm_i915_private *dev_priv,
+				enum port port);
+
 
 /* intel_opregion.c */
 #ifdef CONFIG_ACPI
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 83667e8cdd6b68b5a5c01007f557841d39fc5869..32e1def6a9ef84a22461099cd99cc770b0348b8b 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -1763,3 +1763,52 @@ intel_bios_is_port_hpd_inverted(struct drm_i915_private *dev_priv,
 
 	return false;
 }
+
+/**
+ * intel_bios_is_lspcon_present - if LSPCON is attached on %port
+ * @dev_priv:	i915 device instance
+ * @port:	port to check
+ *
+ * Return true if LSPCON is present on this port
+ */
+bool
+intel_bios_is_lspcon_present(struct drm_i915_private *dev_priv,
+				enum port port)
+{
+	int i;
+
+	if (!HAS_LSPCON(dev_priv))
+		return false;
+
+	for (i = 0; i < dev_priv->vbt.child_dev_num; i++) {
+		if (!dev_priv->vbt.child_dev[i].common.lspcon)
+			continue;
+
+		switch (dev_priv->vbt.child_dev[i].common.dvo_port) {
+		case DVO_PORT_DPA:
+		case DVO_PORT_HDMIA:
+			if (port == PORT_A)
+				return true;
+			break;
+		case DVO_PORT_DPB:
+		case DVO_PORT_HDMIB:
+			if (port == PORT_B)
+				return true;
+			break;
+		case DVO_PORT_DPC:
+		case DVO_PORT_HDMIC:
+			if (port == PORT_C)
+				return true;
+			break;
+		case DVO_PORT_DPD:
+		case DVO_PORT_HDMID:
+			if (port == PORT_D)
+				return true;
+			break;
+		default:
+			break;
+		}
+	}
+
+	return false;
+}