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The SC8280XP PCIe devicetree nodes do not specify an 'iommu-map' so the config_sid() callback is effectively a no-op. Hence introduce a new ops struct, namely ops_1_21_0 which is same as ops_1_9_0 except that it doesn't have config_sid() callback to clean it up. Link: https://lore.kernel.org/r/20241101030902.579789-4-quic_qianyu@quicinc.com Signed-off-by: Qiang Yu <quic_qianyu@quicinc.com> [kwilczynski: commit log] Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Johan Hovold <johan+linaro@kernel.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>