#define DPCM_SELECTABLE 1
 
-#define PREFIX "audio-graph-card,"
-
 static int graph_outdrv_event(struct snd_soc_dapm_widget *w,
                              struct snd_kcontrol *kcontrol,
                              int event)
        struct device_node *node = of_graph_get_port_parent(ep);
 
        asoc_simple_parse_convert(top,   NULL,   adata);
-       asoc_simple_parse_convert(node,  PREFIX, adata);
        if (of_node_name_eq(ports, "ports"))
                asoc_simple_parse_convert(ports, NULL, adata);
        asoc_simple_parse_convert(port,  NULL,   adata);
                /* check "prefix" from top node */
                snd_soc_of_parse_node_prefix(top, cconf, codecs->of_node,
                                              "prefix");
-               snd_soc_of_parse_node_prefix(node, cconf, codecs->of_node,
-                                            PREFIX "prefix");
                if (of_node_name_eq(ports, "ports"))
                        snd_soc_of_parse_node_prefix(ports, cconf, codecs->of_node, "prefix");
                snd_soc_of_parse_node_prefix(port, cconf, codecs->of_node,