From: Derek Foreman <derekf@osg.samsung.com>
Date: Thu, 2 Jul 2015 16:20:21 +0000 (-0500)
Subject: drm/vc4: Allow vblank to be disabled
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=98a44504541c6befb28366eb9ec432ba44070dd9;p=linux-beck.git

drm/vc4: Allow vblank to be disabled

Signed-off-by: Derek Foreman <derekf@osg.samsung.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
---

diff --git a/drivers/gpu/drm/vc4/vc4_kms.c b/drivers/gpu/drm/vc4/vc4_kms.c
index ee3e0040b162..2e5597d10cc6 100644
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -51,6 +51,7 @@ int vc4_kms_load(struct drm_device *dev)
 	dev->mode_config.max_height = 2048;
 	dev->mode_config.funcs = &vc4_mode_funcs;
 	dev->mode_config.preferred_depth = 24;
+	dev->vblank_disable_allowed = true;
 
 	drm_mode_config_reset(dev);