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>

1 files changed, 4 insertions, 0 deletions

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)