1 files changed, 8 insertions, 98 deletions

diff --git a/drivers/staging/media/imx/imx-media-of.c b/drivers/staging/media/imx/imx-media-of.c
index 163437e421c5..b2e840f96c50 100644
--- a/drivers/staging/media/imx/imx-media-of.c
+++ b/drivers/staging/media/imx/imx-media-of.c
@@ -20,74 +20,19 @@
 #include <video/imx-ipu-v3.h>
 #include "imx-media.h"
 
-static int of_get_port_count(const struct device_node *np)
+static int of_add_csi(struct imx_media_dev *imxmd, struct device_node *csi_np)
 {
-	struct device_node *ports, *child;
-	int num = 0;
-
-	/* check if this node has a ports subnode */
-	ports = of_get_child_by_name(np, "ports");
-	if (ports)
-		np = ports;
-
-	for_each_child_of_node(np, child)
-		if (of_node_cmp(child->name, "port") == 0)
-			num++;
-
-	of_node_put(ports);
-	return num;
-}
-
-/*
- * find the remote device node given local endpoint node
- */
-static bool of_get_remote(struct device_node *epnode,
-			  struct device_node **remote_node)
-{
-	struct device_node *rp, *rpp;
-	struct device_node *remote;
-	bool is_csi_port;
-
-	rp = of_graph_get_remote_port(epnode);
-	rpp = of_graph_get_remote_port_parent(epnode);
-
-	if (of_device_is_compatible(rpp, "fsl,imx6q-ipu")) {
-		/* the remote is one of the CSI ports */
-		remote = rp;
-		of_node_put(rpp);
-		is_csi_port = true;
-	} else {
-		remote = rpp;
-		of_node_put(rp);
-		is_csi_port = false;
-	}
-
-	if (!of_device_is_available(remote)) {
-		of_node_put(remote);
-		*remote_node = NULL;
-	} else {
-		*remote_node = remote;
-	}
-
-	return is_csi_port;
-}
-
-static int
-of_parse_subdev(struct imx_media_dev *imxmd, struct device_node *sd_np,
-		bool is_csi_port)
-{
-	int i, num_ports, ret;
+	int ret;
 
-	if (!of_device_is_available(sd_np)) {
+	if (!of_device_is_available(csi_np)) {
 		dev_dbg(imxmd->md.dev, "%s: %pOFn not enabled\n", __func__,
-			sd_np);
+			csi_np);
 		/* unavailable is not an error */
 		return 0;
 	}
 
-	/* register this subdev with async notifier */
-	ret = imx_media_add_async_subdev(imxmd, of_fwnode_handle(sd_np),
-					 NULL);
+	/* add CSI fwnode to async notifier */
+	ret = imx_media_add_async_subdev(imxmd, of_fwnode_handle(csi_np), NULL);
 	if (ret) {
 		if (ret == -EEXIST) {
 			/* already added, everything is fine */
@@ -98,42 +43,7 @@ of_parse_subdev(struct imx_media_dev *imxmd, struct device_node *sd_np,
 		return ret;
 	}
 
-	/*
-	 * the ipu-csi has one sink port. The source pads are not
-	 * represented in the device tree by port nodes, but are
-	 * described by the internal pads and links later.
-	 */
-	num_ports = is_csi_port ? 1 : of_get_port_count(sd_np);
-
-	for (i = 0; i < num_ports; i++) {
-		struct device_node *epnode = NULL, *port, *remote_np;
-
-		port = is_csi_port ? sd_np : of_graph_get_port_by_id(sd_np, i);
-		if (!port)
-			continue;
-
-		for_each_child_of_node(port, epnode) {
-			bool remote_is_csi;
-
-			remote_is_csi = of_get_remote(epnode, &remote_np);
-			if (!remote_np)
-				continue;
-
-			ret = of_parse_subdev(imxmd, remote_np, remote_is_csi);
-			of_node_put(remote_np);
-			if (ret)
-				break;
-		}
-
-		if (port != sd_np)
-			of_node_put(port);
-		if (ret) {
-			of_node_put(epnode);
-			break;
-		}
-	}
-
-	return ret;
+	return 0;
 }
 
 int imx_media_add_of_subdevs(struct imx_media_dev *imxmd,
@@ -147,7 +57,7 @@ int imx_media_add_of_subdevs(struct imx_media_dev *imxmd,
 		if (!csi_np)
 			break;
 
-		ret = of_parse_subdev(imxmd, csi_np, true);
+		ret = of_add_csi(imxmd, csi_np);
 		of_node_put(csi_np);
 		if (ret)
 			return ret;