drm/qxl: use kernel mode db

Add all standard modes from the kernel's video mode data base.
Keep a few non-standard modes in the qxl mode list.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Noralf Trønnes <noralf@tronnes.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20190118122020.27596-23-kraxel@redhat.com

drivers/gpu/drm/qxl/qxl_display.c

@@ -262,34 +262,20 @@ static int qxl_add_monitors_config_modes(struct drm_connector *connector)
 static struct mode_size {
 	int w;
 	int h;
-} common_modes[] = {
-	{ 640,  480},
+} extra_modes[] = {
 	{ 720,  480},
-	{ 800,  600},
-	{ 848,  480},
-	{1024,  768},
 	{1152,  768},
-	{1280,  720},
-	{1280,  800},
 	{1280,  854},
-	{1280,  960},
-	{1280, 1024},
-	{1440,  900},
-	{1400, 1050},
-	{1680, 1050},
-	{1600, 1200},
-	{1920, 1080},
-	{1920, 1200}
 };
 
-static int qxl_add_common_modes(struct drm_connector *connector)
+static int qxl_add_extra_modes(struct drm_connector *connector)
 {
 	int i, ret = 0;
 
-	for (i = 0; i < ARRAY_SIZE(common_modes); i++)
+	for (i = 0; i < ARRAY_SIZE(extra_modes); i++)
 		ret += qxl_add_mode(connector,
-				    common_modes[i].w,
-				    common_modes[i].h,
+				    extra_modes[i].w,
+				    extra_modes[i].h,
 				    false);
 	return ret;
 }
@@ -1010,7 +996,8 @@ static int qxl_conn_get_modes(struct drm_connector *connector)
 			pheight = head->height;
 	}
 
-	ret += qxl_add_common_modes(connector);
+	ret += drm_add_modes_noedid(connector, 8192, 8192);
+	ret += qxl_add_extra_modes(connector);
 	ret += qxl_add_monitors_config_modes(connector);
 	drm_set_preferred_mode(connector, pwidth, pheight);
 	return ret;