drm/i915: Use a 1 second timeout for the polling vblank wait

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>
Link: https://patch.msgid.link/20260410150449.9699-7-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>

diff --git a/drivers/gpu/drm/i915/display/intel_initial_plane.c b/drivers/gpu/drm/i915/display/intel_initial_plane.c
index 74e10d34c63cc4aa4b9e34d40d21f214cbc63291..4f1591b557527ab356eeff0de6416a286e2d2d03 100644 (file)
--- 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);