drm/edid: fixup detailed timings like the X server.

this syncs the versioning check with the code the X server uses.

Reported-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 80cc6d06d61b6ba53ae316a8de5112c8cf434a09..7f2728bbc16c7078e7e249d54f68743c228d4f55 100644 (file)
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -502,12 +502,40 @@ static int add_detailed_info(struct drm_connector *connector,
                struct detailed_non_pixel *data = &timing->data.other_data;
                struct drm_display_mode *newmode;
 
-               /* EDID up to and including 1.2 may put monitor info here */
-               if (edid->version == 1 && edid->revision < 3)
-                       continue;
-
-               /* Detailed mode timing */
-               if (timing->pixel_clock) {
+               /* X server check is version 1.1 or higher */
+               if (edid->version == 1 && edid->revision >= 1 &&
+                   !timing->pixel_clock) {
+                       /* Other timing or info */
+                       switch (data->type) {
+                       case EDID_DETAIL_MONITOR_SERIAL:
+                               break;
+                       case EDID_DETAIL_MONITOR_STRING:
+                               break;
+                       case EDID_DETAIL_MONITOR_RANGE:
+                               /* Get monitor range data */
+                               break;
+                       case EDID_DETAIL_MONITOR_NAME:
+                               break;
+                       case EDID_DETAIL_MONITOR_CPDATA:
+                               break;
+                       case EDID_DETAIL_STD_MODES:
+                               /* Five modes per detailed section */
+                               for (j = 0; j < 5; i++) {
+                                       struct std_timing *std;
+                                       struct drm_display_mode *newmode;
+
+                                       std = &data->data.timings[j];
+                                       newmode = drm_mode_std(dev, std);
+                                       if (newmode) {
+                                               drm_mode_probed_add(connector, newmode);
+                                               modes++;
+                                       }
+                               }
+                               break;
+                       default:
+                               break;
+                       }
+               } else {
                        newmode = drm_mode_detailed(dev, edid, timing, quirks);
                        if (!newmode)
                                continue;
@@ -518,38 +546,6 @@ static int add_detailed_info(struct drm_connector *connector,
                        drm_mode_probed_add(connector, newmode);
 
                        modes++;
-                       continue;
-               }
-
-               /* Other timing or info */
-               switch (data->type) {
-               case EDID_DETAIL_MONITOR_SERIAL:
-                       break;
-               case EDID_DETAIL_MONITOR_STRING:
-                       break;
-               case EDID_DETAIL_MONITOR_RANGE:
-                       /* Get monitor range data */
-                       break;
-               case EDID_DETAIL_MONITOR_NAME:
-                       break;
-               case EDID_DETAIL_MONITOR_CPDATA:
-                       break;
-               case EDID_DETAIL_STD_MODES:
-                       /* Five modes per detailed section */
-                       for (j = 0; j < 5; i++) {
-                               struct std_timing *std;
-                               struct drm_display_mode *newmode;
-
-                               std = &data->data.timings[j];
-                               newmode = drm_mode_std(dev, std);
-                               if (newmode) {
-                                       drm_mode_probed_add(connector, newmode);
-                                       modes++;
-                               }
-                       }
-                       break;
-               default:
-                       break;
                }
        }