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.valkei...@ti.com>
---
drivers/video/omap2/dss/apply.c | 14 +++++++++++++-
drivers/video/omap2/dss/output.c | 8 +++++++-
2 files changed, 20 insertions(+), 2 deletions(-)
diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c
index 752b985..d6212d63 100644
--- a/drivers/video/omap2/dss/apply.c
+++ b/drivers/video/omap2/dss/apply.c
@@ -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)
diff --git a/drivers/video/omap2/dss/output.c b/drivers/video/omap2/dss/output.c
index 0ba168e..3f5c0a7 100644
--- a/drivers/video/omap2/dss/output.c
+++ b/drivers/video/omap2/dss/output.c
@@ -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);
--
1.8.1.2
--
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