[PATCH 06/10] drm/i915: Use a 1 second timeout for the polling vblank wait

Ville Syrjala
2026-04-10T15:05:17Z

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

40 msec seems like a very random number for a vblank wait timeout.
Considering ~24Hz display modes are definitely a thing this seems
way too low. Just bump it to a full second to match what we've been
using for normal vblank waits.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
---
drivers/gpu/drm/i915/display/intel_initial_plane.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_initial_plane.c b/drivers/gpu/drm/i915/display/intel_initial_plane.c
index 74e10d34c63c..4f1591b55752 100644
--- a/drivers/gpu/drm/i915/display/intel_initial_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_initial_plane.c
@@ -36,7 +36,7 @@ void intel_initial_plane_vblank_wait(struct intel_crtc *crtc)
start_ts = intel_de_read(display, PIPE_FRMTMSTMP(crtc->pipe));

ret = poll_timeout_us(end_ts = intel_de_read(display, PIPE_FRMTMSTMP(crtc->pipe)),
- end_ts != start_ts, 1000, 40 * 1000, false);
+ end_ts != start_ts, 1000, 1000 * 1000, false);
if (ret)
drm_warn(display->drm, "[CRTC:%d:%s] early vblank wait timed out\n",
crtc->base.base.id, crtc->base.name);
--
2.52.0