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authorAlex Deucher <alexander.deucher@amd.com>2011-08-09 17:09:06 +0000
committerDave Airlie <airlied@redhat.com>2011-08-12 10:47:25 +0100
commit73104b5cfe3067d68f2c2de3f3d4d4964c55873e (patch)
treedbd55fd91235a4d2acba3bce1f3d0da21879e058 /drivers/gpu
parent72fa59970f8698023045ab0713d66f3f4f96945c (diff)
drm/radeon/kms: don't enable connectors that are off in the hotplug handler
If we get a hotplug event on an connector that is off, don't attempt to turn it on or off, it should already be off. Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=728228 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/radeon/radeon_connectors.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 6d6b5f16bc09..519b5e2f1ee8 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -60,6 +60,10 @@ void radeon_connector_hotplug(struct drm_connector *connector)
radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd);
+ /* if the connector is already off, don't turn it back on */
+ if (connector->dpms != DRM_MODE_DPMS_ON)
+ return;
+
/* powering up/down the eDP panel generates hpd events which
* can interfere with modesetting.
*/