drm/omap: display: Add displays in sorted order to the panel_list

Keep the panel_list ordered according to aliases. The DRM connectors will
be created following the panel_list. By keeping the list ordered the DRM
connectors will be created in the same order regardless of the driver
probe order.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/drivers/gpu/drm/omapdrm/dss/display.c b/drivers/gpu/drm/omapdrm/dss/display.c
index 94c012e0584b..26cb59be045e 100644
--- a/drivers/gpu/drm/omapdrm/dss/display.c
+++ b/drivers/gpu/drm/omapdrm/dss/display.c
@@ -83,6 +83,7 @@ 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;
 
         /*
@@ -118,7 +119,14 @@ int omapdss_register_display(struct omap_dss_device *dssdev)
                 drv->get_timings = omapdss_default_get_timings;
 
         mutex_lock(&panel_list_mutex);
-        list_add_tail(&dssdev->panel_list, &panel_list);
+        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);
         mutex_unlock(&panel_list_mutex);
         return 0;
 }