ALSA: hda - Fix auto-parse of SPDIF input of Realtek codecs

The SPDIF in audio widget must be searched through the list as the widget
that contains the given pin as the connection source. The current code
was implemented in a reverse way.

Signed-off-by: Takashi Iwai <[e-mail]>

sound/pci/hda/patch_realtek.c

···
 	}
 
 	if (spec->autocfg.dig_in_pin) {
-		hda_nid_t dig_nid;
-		err = snd_hda_get_connections(codec,
-					      spec->autocfg.dig_in_pin,
-					      &dig_nid, 1);
-		if (err > 0)
-			spec->dig_in_nid = dig_nid;
+		dig_nid = codec->start_nid;
+		for (i = 0; i < codec->num_nodes; i++, dig_nid++) {
+			unsigned int wcaps = get_wcaps(codec, dig_nid);
+			if (get_wcaps_type(wcaps) != AC_WID_AUD_IN)
+				continue;
+			if (!(wcaps & AC_WCAP_DIGITAL))
+				continue;
+			if (!(wcaps & AC_WCAP_CONN_LIST))
+				continue;
+			err = get_connection_index(codec, dig_nid,
+						   spec->autocfg.dig_in_pin);
+			if (err >= 0) {
+				spec->dig_in_nid = dig_nid;
+				break;
+			}
+		}
 	}
 }