3 files changed, 10 insertions, 58 deletions

diff --git a/drivers/gpu/drm/omapdrm/dss/base.c b/drivers/gpu/drm/omapdrm/dss/base.c
index 62ccbeb99a84..d14abde3c5f0 100644
--- a/drivers/gpu/drm/omapdrm/dss/base.c
+++ b/drivers/gpu/drm/omapdrm/dss/base.c
@@ -112,13 +112,12 @@ void omapdss_device_put(struct omap_dss_device *dssdev)
 }
 EXPORT_SYMBOL(omapdss_device_put);
 
-struct omap_dss_device *omapdss_find_device_by_port(struct device_node *src,
-						    unsigned int port)
+struct omap_dss_device *omapdss_find_device_by_node(struct device_node *node)
 {
 	struct omap_dss_device *dssdev;
 
 	list_for_each_entry(dssdev, &omapdss_devices_list, list) {
-		if (dssdev->dev->of_node == src && dssdev->of_ports & BIT(port))
+		if (dssdev->dev->of_node == node)
 			return omapdss_device_get(dssdev);
 	}
 
diff --git a/drivers/gpu/drm/omapdrm/dss/dss-of.c b/drivers/gpu/drm/omapdrm/dss/dss-of.c
index 0422597ac6b0..b2094055c5fc 100644
--- a/drivers/gpu/drm/omapdrm/dss/dss-of.c
+++ b/drivers/gpu/drm/omapdrm/dss/dss-of.c
@@ -12,71 +12,25 @@
  * more details.
  */
 
-#include <linux/device.h>
 #include <linux/err.h>
-#include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_graph.h>
-#include <linux/seq_file.h>
 
 #include "omapdss.h"
 
-static struct device_node *
-dss_of_port_get_parent_device(struct device_node *port)
-{
-	struct device_node *np;
-	int i;
-
-	if (!port)
-		return NULL;
-
-	np = of_get_parent(port);
-
-	for (i = 0; i < 2 && np; ++i) {
-		struct property *prop;
-
-		prop = of_find_property(np, "compatible", NULL);
-
-		if (prop)
-			return np;
-
-		np = of_get_next_parent(np);
-	}
-
-	return NULL;
-}
-
 struct omap_dss_device *
 omapdss_of_find_connected_device(struct device_node *node, unsigned int port)
 {
-	struct device_node *src_node;
-	struct device_node *src_port;
-	struct device_node *ep;
-	struct omap_dss_device *src;
-	u32 port_number = 0;
+	struct device_node *remote_node;
+	struct omap_dss_device *dssdev;
 
-	/* Get the endpoint... */
-	ep = of_graph_get_endpoint_by_regs(node, port, 0);
-	if (!ep)
+	remote_node = of_graph_get_remote_node(node, port, 0);
+	if (!remote_node)
 		return NULL;
 
-	/* ... and its remote port... */
-	src_port = of_graph_get_remote_port(ep);
-	of_node_put(ep);
-	if (!src_port)
-		return NULL;
-
-	/* ... and the remote port's number and parent... */
-	of_property_read_u32(src_port, "reg", &port_number);
-	src_node = dss_of_port_get_parent_device(src_port);
-	of_node_put(src_port);
-	if (!src_node)
-		return ERR_PTR(-EINVAL);
-
-	/* ... and finally the connected device. */
-	src = omapdss_find_device_by_port(src_node, port_number);
-	of_node_put(src_node);
+	dssdev = omapdss_find_device_by_node(remote_node);
+	of_node_put(remote_node);
 
-	return src ? src : ERR_PTR(-EPROBE_DEFER);
+	return dssdev ? dssdev : ERR_PTR(-EPROBE_DEFER);
 }
 EXPORT_SYMBOL_GPL(omapdss_of_find_connected_device);
diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h b/drivers/gpu/drm/omapdrm/dss/omapdss.h
index a63b1d4b7a8a..d13a6b5774e8 100644
--- a/drivers/gpu/drm/omapdrm/dss/omapdss.h
+++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h
@@ -474,8 +474,7 @@ void omapdss_device_register(struct omap_dss_device *dssdev);
 void omapdss_device_unregister(struct omap_dss_device *dssdev);
 struct omap_dss_device *omapdss_device_get(struct omap_dss_device *dssdev);
 void omapdss_device_put(struct omap_dss_device *dssdev);
-struct omap_dss_device *omapdss_find_device_by_port(struct device_node *src,
-						    unsigned int port);
+struct omap_dss_device *omapdss_find_device_by_node(struct device_node *node);
 int omapdss_device_connect(struct dss_device *dss,
 			   struct omap_dss_device *src,
 			   struct omap_dss_device *dst);