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OMAPFB: remove manager->device references 

With the introduction of output entities, managers will now connect to outputs.
Use the helper op for overlays named get_device. This will abstract away the
information on how to get the device from an overlay.

Using the helper function will reduce the number of pointer dereferences a user
of OMAPDSS needs to do and reduce risk of a NULL dereference.

Signed-off-by: Archit Taneja <archit@ti.com>
This commit is contained in:
Archit Taneja 2012-07-20 18:26:56 +05:30 committed by Tomi Valkeinen
parent d629f03f74
commit 4249e61e04
2 changed files with 7 additions and 4 deletions
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6
drivers/video/omap2/omapfb/omapfb-main.c
View File

@ -2379,6 +2379,7 @@ static int __init omapfb_probe(struct platform_device *pdev)
struct omap_overlay *ovl;
struct omap_dss_device *def_display;
struct omap_dss_device *dssdev;
struct omap_dss_device *ovl_device;
DBG("omapfb_probe\n");
@ -2452,8 +2453,9 @@ static int __init omapfb_probe(struct platform_device *pdev)
/* gfx overlay should be the default one. find a display
* connected to that, and use it as default display */
ovl = omap_dss_get_overlay(0);
if (ovl->manager && ovl->manager->device) {
def_display = ovl->manager->device;
ovl_device = ovl->get_device(ovl);
if (ovl_device) {
def_display = ovl_device;
} else {
dev_warn(&pdev->dev, "cannot find default display\n");
def_display = NULL;

5
drivers/video/omap2/omapfb/omapfb.h
View File

@ -148,8 +148,9 @@ static inline struct omap_dss_device *fb2display(struct fb_info *fbi)
/* XXX: returns the display connected to first attached overlay */
for (i = 0; i < ofbi->num_overlays; i++) {
if (ofbi->overlays[i]->manager)
return ofbi->overlays[i]->manager->device;
struct omap_overlay *ovl = ofbi->overlays[i];
return ovl->get_device(ovl);
}
return NULL;