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authorLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2015-04-28 22:00:28 +0300
committerLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2015-05-25 15:34:13 +0300
commit2610abfb3a72f6e5444a710b695c9460138f9326 (patch)
treea163eae006ffb253a9abbb0e59ca865aaec2b080 /drivers/gpu/drm/rcar-du/rcar_du_crtc.c
parentfe6fbe9a024e149e4230a338700d24db8806183a (diff)
drm: rcar-du: Split planes pre-association 4/4 between CRTCs
If we have more than one CRTCs in a group pre-associate planes 0-3 with CRTC 0 and planes 4-7 with CRTC 1 to minimize flicker occurring when the association is changed. The pre-association could be controlled by a module parameter if needed. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Diffstat (limited to 'drivers/gpu/drm/rcar-du/rcar_du_crtc.c')
-rw-r--r--drivers/gpu/drm/rcar-du/rcar_du_crtc.c3
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
index 620a2c51185c..e6a32c4e4040 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
@@ -257,9 +257,6 @@ static void rcar_du_crtc_update_planes(struct rcar_du_crtc *rcrtc)
* resulting in visible flicker. To mitigate the issue only update the
* association if needed by enabled planes. Planes being disabled will
* keep their current association.
- *
- * To mitigate the issue further we could pre-associate planes with
- * CRTCs, either with a fixed 4/4 split, or through a module parameter.
*/
mutex_lock(&rcrtc->group->lock);