drm/omap: dss: Remove display ordering from dss/display.c

As ordering of the dss_devices based on DT aliases is now implemented in
omap_drm.c, there is no need to do the ordering in dss/display.c
anymore.

At the same time remove the alias member of the omap_dss_device struct
since it is no longer needed. The only place it was used is in the
omapdss_register_display() function.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/gpu/drm/omapdrm/dss/display.c

@@ -41,7 +41,6 @@ static int disp_num_counter;
 int omapdss_register_display(struct omap_dss_device *dssdev)
 {
 	struct omap_dss_driver *drv = dssdev->driver;
-	struct list_head *cur;
 	int id;
 
 	/*
@@ -54,26 +53,18 @@ int omapdss_register_display(struct omap_dss_device *dssdev)
 
 	dssdev->alias_id = id;
 
-	snprintf(dssdev->alias, sizeof(dssdev->alias), "display%d", id);
-
 	/* Use 'label' property for name, if it exists */
 	of_property_read_string(dssdev->dev->of_node, "label", &dssdev->name);
 
 	if (dssdev->name == NULL)
-		dssdev->name = dssdev->alias;
+		dssdev->name = devm_kasprintf(dssdev->dev, GFP_KERNEL,
+					      "display%u", id);
 
 	if (drv && drv->get_timings == NULL)
 		drv->get_timings = omapdss_default_get_timings;
 
 	mutex_lock(&panel_list_mutex);
-	list_for_each(cur, &panel_list) {
-		struct omap_dss_device *ldev = list_entry(cur,
-							 struct omap_dss_device,
-							 panel_list);
-		if (strcmp(ldev->alias, dssdev->alias) > 0)
-			break;
-	}
-	list_add_tail(&dssdev->panel_list, cur);
+	list_add_tail(&dssdev->panel_list, &panel_list);
 	mutex_unlock(&panel_list_mutex);
 	return 0;
 }

drivers/gpu/drm/omapdrm/dss/omapdss.h

@@ -465,8 +465,6 @@ struct omap_dss_device {
 
 	struct list_head panel_list;
 
-	/* alias in the form of "display%d" */
-	char alias[16];
 	unsigned int alias_id;
 
 	enum omap_display_type type;