[Intel-gfx] [PATCH] drm/i915: check modeset state after a pipe_set_base if using fastboot

[Jesse Barnes]

Otherwise we won't check the state until the next DPMS transition, which
may never happen.

Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
---
 drivers/gpu/drm/i915/intel_display.c |   10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index e6a447d..2bd978a 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -10124,6 +10124,16 @@ static int intel_crtc_set_config(struct drm_mode_set *set)
 
 		ret = intel_pipe_set_base(set->crtc,
 					  set->x, set->y, set->fb);
+		/*
+		 * In the fastboot case this may be our only check of the
+		 * state after boot.  It would be better to only do it on
+		 * the first update, but we don't have a nice way of doing that
+		 * (and really, set_config isn't used much for high freq page
+		 * flipping, so increasing its cost here shouldn't be a big
+		 * deal).
+		 */
+		if (i915_fastboot && ret == 0)
+			intel_modeset_check_state(set->crtc->dev);
 	}
 
 	if (ret) {
-- 
1.7.9.5