drm/radeon/kms: bail early for eDP in hotplug callback

Don't try and en/disable the port as it may be a hpd event from
powering up/down the panel during a modeset or dpms.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 5947871..532f17d 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -52,6 +52,12 @@ void radeon_connector_hotplug(struct drm_connector *connector)
 
        radeon_hpd_set_polarity(rdev, radeon_connector->hpd.hpd);
 
+       /* powering up/down the eDP panel generates hpd events which
+        * can interfere with modesetting.
+        */
+       if (connector->connector_type == DRM_MODE_CONNECTOR_eDP)
+               return;
+
        /* pre-r600 did not always have the hpd pins mapped accurately to connectors */
        if (rdev->family >= CHIP_R600) {
                if (radeon_hpd_sense(rdev, radeon_connector->hpd.hpd))