2 files changed, 52 insertions, 33 deletions

diff --git a/drivers/of/base.c b/drivers/of/base.c
index 28d5f53bc631..cb1c49ae3b88 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1601,6 +1601,7 @@ int of_phandle_iterator_init(struct of_phandle_iterator *it,
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(of_phandle_iterator_init);
 
 int of_phandle_iterator_next(struct of_phandle_iterator *it)
 {
@@ -1670,6 +1671,7 @@ err:
 
 	return -EINVAL;
 }
+EXPORT_SYMBOL_GPL(of_phandle_iterator_next);
 
 int of_phandle_iterator_args(struct of_phandle_iterator *it,
 			     uint32_t *args,
@@ -2485,6 +2487,41 @@ struct device_node *of_graph_get_endpoint_by_regs(
 EXPORT_SYMBOL(of_graph_get_endpoint_by_regs);
 
 /**
+ * of_graph_get_remote_endpoint() - get remote endpoint node
+ * @node: pointer to a local endpoint device_node
+ *
+ * Return: Remote endpoint node associated with remote endpoint node linked
+ *	   to @node. Use of_node_put() on it when done.
+ */
+struct device_node *of_graph_get_remote_endpoint(const struct device_node *node)
+{
+	/* Get remote endpoint node. */
+	return of_parse_phandle(node, "remote-endpoint", 0);
+}
+EXPORT_SYMBOL(of_graph_get_remote_endpoint);
+
+/**
+ * of_graph_get_port_parent() - get port's parent node
+ * @node: pointer to a local endpoint device_node
+ *
+ * Return: device node associated with endpoint node linked
+ *	   to @node. Use of_node_put() on it when done.
+ */
+struct device_node *of_graph_get_port_parent(struct device_node *node)
+{
+	unsigned int depth;
+
+	/* Walk 3 levels up only if there is 'ports' node. */
+	for (depth = 3; depth && node; depth--) {
+		node = of_get_next_parent(node);
+		if (depth == 2 && of_node_cmp(node->name, "ports"))
+			break;
+	}
+	return node;
+}
+EXPORT_SYMBOL(of_graph_get_port_parent);
+
+/**
  * of_graph_get_remote_port_parent() - get remote port's parent node
  * @node: pointer to a local endpoint device_node
  *
@@ -2495,18 +2532,11 @@ struct device_node *of_graph_get_remote_port_parent(
 			       const struct device_node *node)
 {
 	struct device_node *np;
-	unsigned int depth;
 
 	/* Get remote endpoint node. */
-	np = of_parse_phandle(node, "remote-endpoint", 0);
+	np = of_graph_get_remote_endpoint(node);
 
-	/* Walk 3 levels up only if there is 'ports' node. */
-	for (depth = 3; depth && np; depth--) {
-		np = of_get_next_parent(np);
-		if (depth == 2 && of_node_cmp(np->name, "ports"))
-			break;
-	}
-	return np;
+	return of_graph_get_port_parent(np);
 }
 EXPORT_SYMBOL(of_graph_get_remote_port_parent);
 
@@ -2522,13 +2552,25 @@ struct device_node *of_graph_get_remote_port(const struct device_node *node)
 	struct device_node *np;
 
 	/* Get remote endpoint node. */
-	np = of_parse_phandle(node, "remote-endpoint", 0);
+	np = of_graph_get_remote_endpoint(node);
 	if (!np)
 		return NULL;
 	return of_get_next_parent(np);
 }
 EXPORT_SYMBOL(of_graph_get_remote_port);
 
+int of_graph_get_endpoint_count(const struct device_node *np)
+{
+	struct device_node *endpoint;
+	int num = 0;
+
+	for_each_endpoint_of_node(np, endpoint)
+		num++;
+
+	return num;
+}
+EXPORT_SYMBOL(of_graph_get_endpoint_count);
+
 /**
  * of_graph_get_remote_node() - get remote parent device_node for given port/endpoint
  * @node: pointer to parent device_node containing graph port/endpoint
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 7e4c80f9b6cd..e0dbd6e48a98 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -119,28 +119,6 @@ static void of_mdiobus_register_device(struct mii_bus *mdio,
 		child->name, addr);
 }
 
-int of_mdio_parse_addr(struct device *dev, const struct device_node *np)
-{
-	u32 addr;
-	int ret;
-
-	ret = of_property_read_u32(np, "reg", &addr);
-	if (ret < 0) {
-		dev_err(dev, "%s has invalid PHY address\n", np->full_name);
-		return ret;
-	}
-
-	/* A PHY must have a reg property in the range [0-31] */
-	if (addr >= PHY_MAX_ADDR) {
-		dev_err(dev, "%s PHY address %i is too large\n",
-			np->full_name, addr);
-		return -EINVAL;
-	}
-
-	return addr;
-}
-EXPORT_SYMBOL(of_mdio_parse_addr);
-
 /* The following is a list of PHY compatible strings which appear in
  * some DTBs. The compatible string is never matched against a PHY
  * driver, so is pointless. We only expect devices which are not PHYs
@@ -226,7 +204,6 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
 	/* Get bus level PHY reset GPIO details */
 	mdio->reset_delay_us = DEFAULT_GPIO_RESET_DELAY;
 	of_property_read_u32(np, "reset-delay-us", &mdio->reset_delay_us);
-	mdio->num_reset_gpios = of_gpio_named_count(np, "reset-gpios");
 
 	/* Register the MDIO bus */
 	rc = mdiobus_register(mdio);