[01/12] HACK: increase timeout for drm_atomic_helper_wait_for_vblanks
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Message ID 1530612152-27555-2-git-send-email-dkos@cadence.com
State New
Headers show

Commit Message

Damian Kos July 3, 2018, 10:02 a.m. UTC
From: Quentin Schulz <quentin.schulz@free-electrons.com>

Due to the DP IP being simulated in a different and way slower way than
the rest of the hardware, increase the timeout in
drm_atomic_helper_wait_for_vblanks so that we don't miss the vblank
event.

Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
Signed-off-by: Damian Kos <dkos@cadence.com>
---
 drivers/gpu/drm/drm_atomic_helper.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

Patch
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diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index c356545..0171249 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -1345,7 +1345,7 @@  int drm_atomic_helper_wait_for_fences(struct drm_device *dev,
 		ret = wait_event_timeout(dev->vblank[i].queue,
 				old_state->crtcs[i].last_vblank_count !=
 					drm_crtc_vblank_count(crtc),
-				msecs_to_jiffies(50));
+				msecs_to_jiffies(4000));
 
 		WARN(!ret, "[CRTC:%d:%s] vblank wait timed out\n",
 		     crtc->base.id, crtc->name);