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OMAPDSS: modify get/find functions to go through the device chain 

In the future will have arbitrarily long video pipeline chains, instead
of the current two-entities-per-pipeline model.

This patch changes the affected get/find style functions so that they
properly go through the video pipeline chain, for example when getting
the overlay manager connected to a given display.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2013-04-23 14:35:40 +03:00
parent 5d47dbc852
commit efedce1425
2 changed files with 20 additions and 2 deletions
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14
drivers/video/omap2/dss/apply.c
View File

@ -422,7 +422,19 @@ static void wait_pending_extra_info_updates(void)
static struct omap_dss_device *dss_mgr_get_device(struct omap_overlay_manager *mgr)
{
return mgr->output ? mgr->output->device : NULL;
struct omap_dss_device *dssdev;
dssdev = mgr->output;
if (dssdev == NULL)
return NULL;
while (dssdev->device)
dssdev = dssdev->device;
if (dssdev->driver)
return dssdev;
else
return NULL;
}
static struct omap_dss_device *dss_ovl_get_device(struct omap_overlay *ovl)

8
drivers/video/omap2/dss/output.c
View File

@ -146,7 +146,13 @@ EXPORT_SYMBOL(omap_dss_find_output_by_node);
struct omap_dss_device *omapdss_find_output_from_display(struct omap_dss_device *dssdev)
{
return omap_dss_get_device(dssdev->output);
while (dssdev->output)
dssdev = dssdev->output;
if (dssdev->id != 0)
return omap_dss_get_device(dssdev);
return NULL;
}
EXPORT_SYMBOL(omapdss_find_output_from_display);