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OMAPFB: search for default display with DT alias

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Improve the search for the default display in two ways:
* compare the given display name to the display's alias
* if no display name is given, look for "display0" DT alias

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Archit Taneja <archit@ti.com>
This commit is contained in:
Tomi Valkeinen 2013-08-06 09:50:52 +03:00
parent 4b13defce8
commit a6ec216493
1 changed files with 22 additions and 1 deletions
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23
drivers/video/omap2/omapfb/omapfb-main.c
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@ -2423,7 +2423,10 @@ 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 */
/*
* 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();
@ -2435,12 +2438,30 @@ omapfb_find_default_display(struct omapfb2_device *fbdev)
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;
}