Increase the timeout for vblank events from 100 ms to 1000 ms. This
is the same fix as in commit f050da08a4ed ("drm/vblank: Increase
timeout in drm_wait_one_vblank()") for another vblank timeout.

After merging generic DRM vblank timers [1] and converting several
DRM drivers for virtual hardware, these drivers synchronize their
vblank events to the display refresh rate. This can trigger timeouts
within the DRM framework.

Signed-off-by: Thomas Zimmermann <[email protected]>
Link: 
https://lore.kernel.org/dri-devel/[email protected]/ 
# [1]
Reported-by: [email protected]
Closes: 
https://lore.kernel.org/dri-devel/[email protected]/
---
 drivers/gpu/drm/drm_atomic_helper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_atomic_helper.c 
b/drivers/gpu/drm/drm_atomic_helper.c
index e641fcf8c568..e108f91bc3dd 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -1839,7 +1839,7 @@ drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
                ret = wait_event_timeout(*queue,
                                         state->crtcs[i].last_vblank_count !=
                                                drm_crtc_vblank_count(crtc),
-                                        msecs_to_jiffies(100));
+                                        msecs_to_jiffies(1000));
 
                WARN(!ret, "[CRTC:%d:%s] vblank wait timed out\n",
                     crtc->base.id, crtc->name);
-- 
2.52.0

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