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[ Upstream commit4185b95f8a] graph_util_is_ports0() identifies DPCM front-end (ports@0) vs back-end (ports@1) by calling of_get_child_by_name() to find the first "ports" child and comparing pointers. This relies on child iteration order matching DTS source order. When the DPCM topology comes from a DT overlay, __of_attach_node() inserts new children at the head of the sibling list, reversing the order. of_get_child_by_name() then returns ports@1 instead of ports@0, causing all front-end links to be classified as back-ends. The card registers with no PCM devices. Fix this by matching the unit address directly from the node name instead of relying on sibling order. Fixes:9293925245("ASoC: simple-card-utils: add asoc_graph_is_ports0()") Signed-off-by: Sen Wang <sen@ti.com> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Link: https://patch.msgid.link/20260309042109.2576612-1-sen@ti.com Signed-off-by: Mark Brown <broonie@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>