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path: root/drivers/video/omap2/omapfb/omapfb-main.c
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Diffstat (limited to 'drivers/video/omap2/omapfb/omapfb-main.c')
-rw-r--r--drivers/video/omap2/omapfb/omapfb-main.c67
1 files changed, 50 insertions, 17 deletions
diff --git a/drivers/video/omap2/omapfb/omapfb-main.c b/drivers/video/omap2/omapfb/omapfb-main.c
index 8d02f164c8c6..ec2d132c782d 100644
--- a/drivers/video/omap2/omapfb/omapfb-main.c
+++ b/drivers/video/omap2/omapfb/omapfb-main.c
@@ -2417,6 +2417,55 @@ static int omapfb_init_connections(struct omapfb2_device *fbdev,
return 0;
}
+static struct omap_dss_device *
+omapfb_find_default_display(struct omapfb2_device *fbdev)
+{
+ const char *def_name;
+ int i;
+
+ /*
+ * Search with the display name from the user or the board file,
+ * comparing to display names and aliases
+ */
+
+ def_name = omapdss_get_default_display_name();
+
+ if (def_name) {
+ for (i = 0; i < fbdev->num_displays; ++i) {
+ struct omap_dss_device *dssdev;
+
+ dssdev = fbdev->displays[i].dssdev;
+
+ if (dssdev->name && strcmp(def_name, dssdev->name) == 0)
+ return dssdev;
+
+ if (strcmp(def_name, dssdev->alias) == 0)
+ return dssdev;
+ }
+
+ /* def_name given but not found */
+ return NULL;
+ }
+
+ /* then look for DT alias display0 */
+ for (i = 0; i < fbdev->num_displays; ++i) {
+ struct omap_dss_device *dssdev;
+ int id;
+
+ dssdev = fbdev->displays[i].dssdev;
+
+ if (dssdev->dev->of_node == NULL)
+ continue;
+
+ id = of_alias_get_id(dssdev->dev->of_node, "display");
+ if (id == 0)
+ return dssdev;
+ }
+
+ /* return the first display we have in the list */
+ return fbdev->displays[0].dssdev;
+}
+
static int omapfb_probe(struct platform_device *pdev)
{
struct omapfb2_device *fbdev = NULL;
@@ -2494,23 +2543,7 @@ static int omapfb_probe(struct platform_device *pdev)
for (i = 0; i < fbdev->num_managers; i++)
fbdev->managers[i] = omap_dss_get_overlay_manager(i);
- def_display = NULL;
-
- for (i = 0; i < fbdev->num_displays; ++i) {
- struct omap_dss_device *dssdev;
- const char *def_name;
-
- def_name = omapdss_get_default_display_name();
-
- dssdev = fbdev->displays[i].dssdev;
-
- if (def_name == NULL ||
- (dssdev->name && strcmp(def_name, dssdev->name) == 0)) {
- def_display = dssdev;
- break;
- }
- }
-
+ def_display = omapfb_find_default_display(fbdev);
if (def_display == NULL) {
dev_err(fbdev->dev, "failed to find default display\n");
r = -EPROBE_DEFER;