From 11e686855c81c2e5e647b3dcfabd2a4e473c46f0 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Tue, 23 Oct 2012 18:23:38 +0000
Subject: [PATCH] drm: don't poll forced connectors
Otherwise if the detect callback reports a different state than what
the user forced (rather likely), we continously annoy userspace about
a hotplug uevent.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
drivers/gpu/drm/drm_crtc_helper.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index 5ee192885c97..6437bb9ed81c 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -965,6 +965,10 @@ static void output_poll_execute(struct work_struct *work)
mutex_lock(&dev->mode_config.mutex);
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ /* Ignore forced connectors. */
+ if (connector->force)
+ continue;
+
/* Ignore HPD capable connectors and connectors where we don't
* want any hotplug detection at all for polling. */
if (!connector->polled || connector->polled == DRM_CONNECTOR_POLL_HPD)
--
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