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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>
This commit is contained in:
Saravana Kannan 2024-02-06 17:18:02 -08:00 committed by Greg Kroah-Hartman
parent 24ec7504a0
commit 058d1c5616
1 changed files with 3 additions and 1 deletions
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4
drivers/of/property.c
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@ -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. */ /* Walk 3 levels up only if there is 'ports' node. */
for (depth = 3; depth && node; depth--) { for (depth = 3; depth && node; depth--) {
node = of_get_next_parent(node); 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; break;
} }
return node; return node;