diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/panel-edp.c
index a394a15dc3fb..23da4040e263 100644
--- a/drivers/gpu/drm/panel/panel-edp.c
+++ b/drivers/gpu/drm/panel/panel-edp.c
@@ -222,6 +222,8 @@ struct panel_edp {
 	struct gpio_desc *enable_gpio;
 	struct gpio_desc *hpd_gpio;
 
+	const struct edp_panel_entry *detected_panel;
+
 	struct edid *edid;
 
 	struct drm_display_mode override_mode;
@@ -666,7 +668,6 @@ static const struct edp_panel_entry *find_edp_panel(u32 panel_id);
 
 static int generic_edp_panel_probe(struct device *dev, struct panel_edp *panel)
 {
-	const struct edp_panel_entry *edp_panel;
 	struct panel_desc *desc;
 	u32 panel_id;
 	char vend[4];
@@ -705,14 +706,14 @@ static int generic_edp_panel_probe(struct device *dev, struct panel_edp *panel)
 	}
 	drm_edid_decode_panel_id(panel_id, vend, &product_id);
 
-	edp_panel = find_edp_panel(panel_id);
+	panel->detected_panel = find_edp_panel(panel_id);
 
 	/*
 	 * We're using non-optimized timings and want it really obvious that
 	 * someone needs to add an entry to the table, so we'll do a WARN_ON
 	 * splat.
 	 */
-	if (WARN_ON(!edp_panel)) {
+	if (WARN_ON(!panel->detected_panel)) {
 		dev_warn(dev,
 			 "Unknown panel %s %#06x, using conservative timings\n",
 			 vend, product_id);
@@ -734,12 +735,14 @@ static int generic_edp_panel_probe(struct device *dev, struct panel_edp *panel)
 		 */
 		desc->delay.unprepare = 2000;
 		desc->delay.enable = 200;
+
+		panel->detected_panel = ERR_PTR(-EINVAL);
 	} else {
 		dev_info(dev, "Detected %s %s (%#06x)\n",
-			 vend, edp_panel->name, product_id);
+			 vend, panel->detected_panel->name, product_id);
 
 		/* Update the delay; everything else comes from EDID */
-		desc->delay = *edp_panel->delay;
+		desc->delay = *panel->detected_panel->delay;
 	}
 
 	ret = 0;
@@ -750,6 +753,28 @@ exit:
 	return ret;
 }
 
+static ssize_t detected_panel_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct panel_edp *p = dev_get_drvdata(dev);
+
+	if (IS_ERR(p->detected_panel))
+		return sysfs_emit(buf, "UNKNOWN\n");
+	else if (!p->detected_panel)
+		return sysfs_emit(buf, "HARDCODED\n");
+	else
+		return sysfs_emit(buf, "%s\n", p->detected_panel->name);
+}
+
+static const DEVICE_ATTR_RO(detected_panel);
+
+static void edp_panel_remove_detected_panel(void *data)
+{
+	struct panel_edp *p = data;
+
+	device_remove_file(p->base.dev, &dev_attr_detected_panel);
+}
+
 static int panel_edp_probe(struct device *dev, const struct panel_desc *desc,
 			   struct drm_dp_aux *aux)
 {
@@ -849,6 +874,10 @@ static int panel_edp_probe(struct device *dev, const struct panel_desc *desc,
 
 	drm_panel_add(&panel->base);
 
+	err = device_create_file(dev, &dev_attr_detected_panel);
+	if (!err)
+		devm_add_action_or_reset(dev, edp_panel_remove_detected_panel, panel);
+
 	return 0;
 
 err_finished_pm_runtime: