From 4573ebe5ec3121dd4e6f3e8f0c5feba01a235251 Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Mon, 22 Aug 2016 15:54:30 +0300
Subject: [PATCH] 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>
---
 drivers/gpu/drm/omapdrm/omap_connector.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/omapdrm/omap_connector.c b/drivers/gpu/drm/omapdrm/omap_connector.c
index f90e2d22c5eca..50d2b641c28b7 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;
-- 
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