of: property: Add in-ports/out-ports support to of_graph_get_port_parent()

commit 8f1e0d791b5281f3a38620bc7c57763dc551be15 upstream.

Similar to the existing "ports" node name, coresight device tree bindings
have added "in-ports" and "out-ports" as standard node names for a
collection of ports.

Add support for these name to of_graph_get_port_parent() so that
remote-endpoint parsing can find the correct parent node for these
coresight ports too.

Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20240207011803.2637531-4-saravanak@google.com
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/of/property.c b/drivers/of/property.c
index 7f51994033b80951fde7e273c19bdf35a715c844..e1a2cb5ef401cd4dd2efcb05e8ecb6d17d174baa 100644 (file)
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -762,7 +762,9 @@ struct device_node *of_graph_get_port_parent(struct device_node *node)
        /* 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_name_eq(node, "ports"))
+               if (depth == 2 && !of_node_name_eq(node, "ports") &&
+                   !of_node_name_eq(node, "in-ports") &&
+                   !of_node_name_eq(node, "out-ports"))
                        break;
        }
        return node;