drm/omap: poll only connectors where the connect/disconnect can be checked

When the connector associated detect callback is not provided, we can not
detect if the display is connected or disconnected. These displays do not
support hot plug, they are always connected. Let DRM know that connectors
w/o detect callback should not be polled.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 4 insertions, 6 deletions

diff --git a/drivers/gpu/drm/omapdrm/omap_connector.c b/drivers/gpu/drm/omapdrm/omap_connector.c
index f90e2d22c5ec..50d2b641c28b 100644
--- a/drivers/gpu/drm/omapdrm/omap_connector.c
+++ b/drivers/gpu/drm/omapdrm/omap_connector.c
@@ -229,13 +229,11 @@ struct drm_connector *omap_connector_init(struct drm_device *dev,
                                 connector_type);
         drm_connector_helper_add(connector, &omap_connector_helper_funcs);
 
-#if 0 /* enable when dss2 supports hotplug */
-        if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_HPD)
-                connector->polled = 0;
-        else
-#endif
+        if (dssdev->driver->detect)
                 connector->polled = DRM_CONNECTOR_POLL_CONNECT |
-                                DRM_CONNECTOR_POLL_DISCONNECT;
+                                    DRM_CONNECTOR_POLL_DISCONNECT;
+        else
+                connector->polled = 0;
 
         connector->interlace_allowed = 1;
         connector->doublescan_allowed = 0;