+static const char *check_output_pfx(struct hda_codec *codec, hda_nid_t nid)
+{
+ unsigned int def_conf = snd_hda_codec_get_pincfg(codec, nid);
+ int attr = snd_hda_get_input_pin_attr(def_conf);
+
+ /* check the location */
+ switch (attr) {
+ case INPUT_PIN_ATTR_DOCK:
+ return "Dock ";
+ case INPUT_PIN_ATTR_FRONT:
+ return "Front ";
+ }
+ return "";
+}
+
+static int get_hp_label_index(struct hda_codec *codec, hda_nid_t nid,
+ const hda_nid_t *pins, int num_pins)
+{
+ int i, j, idx = 0;
+
+ const char *pfx = check_output_pfx(codec, nid);
+
+ i = find_idx_in_nid_list(nid, pins, num_pins);
+ if (i < 0)
+ return -1;
+ for (j = 0; j < i; j++)
+ if (pfx == check_output_pfx(codec, pins[j]))
+ idx++;
+
+ return idx;
+}
+