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ovmerge: allow top-level phandles to optionally be preserved #199

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Merged
pelwell merged 1 commit into from
Jun 12, 2026
Merged

ovmerge: allow top-level phandles to optionally be preserved #199

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11 changes: 11 additions & 0 deletions ovmerge/ovmerge
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Original file line number Diff line number Diff line change
Expand Up @@ -304,6 +304,17 @@ foreach my $overlay (@ARGV)
foreach my $fragment (get_fragments($dt))
{
delete_node($fragment) if (get_child($fragment, '__dormant__'));

# Treat a dtoverlay,preserve-phandle property as an export of any label on the node
my $payload = get_child($fragment, '__overlay__');
if (get_prop($payload, "dtoverlay,preserve-phandle"))
{
foreach my $label (get_labels($payload))
{
adj_ref(1, $label);
}
delete_prop($payload, "dtoverlay,preserve-phandle");
}
}
}
$cur_dt = undef;
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