drm: rcar-du: Enable hotplug detection on HDMI connector

As HDMI support hotplug detection, enable HPD-based poll on HDMI
connectors.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c b/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c
index 4d7d4dd46d26..322b7208171a 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_hdmicon.c
@@ -95,6 +95,7 @@ int rcar_du_hdmi_connector_init(struct rcar_du_device *rcdu,
         connector = &rcon->connector;
         connector->display_info.width_mm = 0;
         connector->display_info.height_mm = 0;
+        connector->polled = DRM_CONNECTOR_POLL_HPD;
 
         ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs,
                                  DRM_MODE_CONNECTOR_HDMIA);