diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 6eb43647163cf052fc35c7e35e91c892d06ed24e..8f313c1d374d7f185aa4344dc870645eafa75239 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1451,7 +1451,7 @@ static void intel_dp_print_rates(struct intel_dp *intel_dp)
 	DRM_DEBUG_KMS("common rates: %s\n", str);
 }
 
-static bool
+bool
 __intel_dp_read_desc(struct intel_dp *intel_dp, struct intel_dp_desc *desc)
 {
 	u32 base = drm_dp_is_branch(intel_dp->dpcd) ? DP_BRANCH_OUI :
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 5989c48d79644dc76181acd6334014386b960060..c2f38634e86ea01fc7c1edf5d8d5cf8caa06e709 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -974,6 +974,7 @@ struct intel_dp {
 struct intel_lspcon {
 	bool active;
 	enum drm_lspcon_mode mode;
+	bool desc_valid;
 };
 
 struct intel_digital_port {
@@ -1467,6 +1468,8 @@ static inline unsigned int intel_dp_unused_lane_mask(int lane_count)
 }
 
 bool intel_dp_read_dpcd(struct intel_dp *intel_dp);
+bool __intel_dp_read_desc(struct intel_dp *intel_dp,
+			  struct intel_dp_desc *desc);
 bool intel_dp_read_desc(struct intel_dp *intel_dp);
 
 /* intel_dp_aux_backlight.c */
diff --git a/drivers/gpu/drm/i915/intel_lspcon.c b/drivers/gpu/drm/i915/intel_lspcon.c
index 3dc5a0be7857c5c96a78c01cd34b11d2a77f0331..daa5234109533319dc285cfbc1fb5325a7070567 100644
--- a/drivers/gpu/drm/i915/intel_lspcon.c
+++ b/drivers/gpu/drm/i915/intel_lspcon.c
@@ -97,8 +97,43 @@ static bool lspcon_probe(struct intel_lspcon *lspcon)
 	return true;
 }
 
+static void lspcon_resume_in_pcon_wa(struct intel_lspcon *lspcon)
+{
+	struct intel_dp *intel_dp = lspcon_to_intel_dp(lspcon);
+	unsigned long start = jiffies;
+
+	if (!lspcon->desc_valid)
+		return;
+
+	while (1) {
+		struct intel_dp_desc desc;
+
+		/*
+		 * The w/a only applies in PCON mode and we don't expect any
+		 * AUX errors.
+		 */
+		if (!__intel_dp_read_desc(intel_dp, &desc))
+			return;
+
+		if (!memcmp(&intel_dp->desc, &desc, sizeof(desc))) {
+			DRM_DEBUG_KMS("LSPCON recovering in PCON mode after %u ms\n",
+				      jiffies_to_msecs(jiffies - start));
+			return;
+		}
+
+		if (time_after(jiffies, start + msecs_to_jiffies(1000)))
+			break;
+
+		usleep_range(10000, 15000);
+	}
+
+	DRM_DEBUG_KMS("LSPCON DP descriptor mismatch after resume\n");
+}
+
 void lspcon_resume(struct intel_lspcon *lspcon)
 {
+	lspcon_resume_in_pcon_wa(lspcon);
+
 	if (lspcon_change_mode(lspcon, DRM_LSPCON_MODE_PCON, true))
 		DRM_ERROR("LSPCON resume failed\n");
 	else
@@ -143,7 +178,7 @@ bool lspcon_init(struct intel_digital_port *intel_dig_port)
 		return false;
 	}
 
-	intel_dp_read_desc(dp);
+	lspcon->desc_valid = intel_dp_read_desc(dp);
 
 	DRM_DEBUG_KMS("Success: LSPCON init\n");
 	return true;