[PATCH] drm/i915: forward hotplug events again

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>,
	Chris Wilson <chris@chris-wilson.co.uk>,
	Lukas Wunner <lukas@wunner.de>,
	jrg2718@gmail.com, stable@vger.kernel.org
Subject: [PATCH] drm/i915: forward hotplug events again
Date: Thu,  4 Jan 2018 17:42:55 -0800	[thread overview]
Message-ID: <20180105014255.4874-1-rodrigo.vivi@intel.com> (raw)

As mentioned on commit '88be58be886f ("drm/i915/fbdev:
Always forward hotplug events") we have real valid cases
of hotplugs where fbdev is not fully setup yet.

Unfortunately this remove the checkpoint after the sync point.
So probably we can live without it. Or we need a more robust
serialization.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=104158
Fixes: a45b30a6c5db ("drm/i915/fbdev: Serialise early hotplug events with async fbdev config")
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: jrg2718@gmail.com
Cc: stable@vger.kernel.org
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/intel_fbdev.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c
index da48af11eb6b..7a6069b389f2 100644
--- a/drivers/gpu/drm/i915/intel_fbdev.c
+++ b/drivers/gpu/drm/i915/intel_fbdev.c
@@ -801,8 +801,7 @@ void intel_fbdev_output_poll_changed(struct drm_device *dev)
 		return;
 
 	intel_fbdev_sync(ifbdev);
-	if (ifbdev->vma)
-		drm_fb_helper_hotplug_event(&ifbdev->helper);
+	drm_fb_helper_hotplug_event(&ifbdev->helper);
 }
 
 void intel_fbdev_restore_mode(struct drm_device *dev)
-- 
2.13.6
