Commit 73104b5c authored Aug 09, 2011 by Alex Deucher Committed by Dave Airlie Aug 12, 2011

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>

parent 72fa5997

drivers/gpu/drm/radeon/radeon_connectors.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -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.
		*/