From: Tomi Valkeinen Date: Thu, 6 Sep 2012 13:10:28 +0000 (+0300) Subject: OMAPDSS: fix dss_ovl_unset_manager X-Git-Tag: next-20120912~50^2~1^2 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b2f5976c109350977104f27211a7029ec67cd488;p=karo-tx-linux.git OMAPDSS: fix dss_ovl_unset_manager When we removed fifomerge support, we also changed dss_ovl_disable so that it doesn't wait for the hardware to be finished with the overlay. This may cause a problem when changing the overlay's manager, as changing the manager is an immediate change. Thus if the overlay is still being used by the HW when the manager is changed, there may be glitches on the screen. This patch adds a wait into dss_ovl_unset_manager, which ensures the overlays are disabled in the HW. Signed-off-by: Tomi Valkeinen --- diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c index 4a58d80a6315..6354bb842856 100644 --- a/drivers/video/omap2/dss/apply.c +++ b/drivers/video/omap2/dss/apply.c @@ -1330,6 +1330,13 @@ int dss_ovl_unset_manager(struct omap_overlay *ovl) goto err; } + spin_unlock_irqrestore(&data_lock, flags); + + /* wait for pending extra_info updates to ensure the ovl is disabled */ + wait_pending_extra_info_updates(); + + spin_lock_irqsave(&data_lock, flags); + op->channel = -1; ovl->manager = NULL;