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drm/radeon/kms: Fix logic error in DP HPD handler

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commit 5ba7ddf816 upstream.

Only disable the pipe if the monitor is physically
disconnected.  The previous logic also disabled the
pipe if the link was trained.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=41248

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Alex Deucher 2011-10-03 08:37:33 -04:00 committed by Greg Kroah-Hartman
parent 1a795f752c
commit 23882c85d9
1 changed files with 4 additions and 4 deletions
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8
drivers/gpu/drm/radeon/radeon_connectors.c
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@ -68,11 +68,11 @@ void radeon_connector_hotplug(struct drm_connector *connector)
if (connector->connector_type == DRM_MODE_CONNECTOR_DisplayPort) {
int saved_dpms = connector->dpms;
if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd) &&
radeon_dp_needs_link_train(radeon_connector))
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
else
/* Only turn off the display it it's physically disconnected */
if (!radeon_hpd_sense(rdev, radeon_connector->hpd.hpd))
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
else if (radeon_dp_needs_link_train(radeon_connector))
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
connector->dpms = saved_dpms;
}
}