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drm: don't unnecessarily enable the polling work

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... by properly checking connector->polled. This doesn't matter too
much because the polling work itself gets this slightly more right and
doesn't set repoll if there's nothing to do. But we can do better.

v2: Chris Wilson noticed that I broke polling, since repoll will never
ever be set true. Fix this up, and simplify the logic a bit while at
it.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Daniel Vetter 2012-10-24 13:35:50 +00:00 committed by Dave Airlie
parent 9499c82da2
commit a4f968d8e5
1 changed files with 3 additions and 3 deletions
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6
drivers/gpu/drm/drm_crtc_helper.c
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@ -974,8 +974,7 @@ static void output_poll_execute(struct work_struct *work)
if (!connector->polled || connector->polled == DRM_CONNECTOR_POLL_HPD)
continue;
else if (connector->polled & (DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT))
repoll = true;
repoll = true;
old_status = connector->status;
/* if we are connected and don't want to poll for disconnect
@ -1019,7 +1018,8 @@ void drm_kms_helper_poll_enable(struct drm_device *dev)
return;
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
if (connector->polled)
if (connector->polled & (DRM_CONNECTOR_POLL_CONNECT |
DRM_CONNECTOR_POLL_DISCONNECT))
poll = true;
}