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authorAlex Deucher <alexander.deucher@amd.com>2011-10-03 08:37:33 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2011-10-16 14:14:52 -0700
commit23882c85d97acaf626ace83e2feabd46393a1b6a (patch)
tree57bf5f4a9b0308ebd0cd0ded293f8aad54800461 /drivers
parent1a795f752c6c41c2bdb15290b9f42328289a27ce (diff)
drm/radeon/kms: Fix logic error in DP HPD handler
commit 5ba7ddf81634bfdf32d09261d2959e3f5b7c4263 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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/radeon/radeon_connectors.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index d1b36f83029a..05b8b2cbd4fe 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -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;
}
}