+/* add mic boosts if needed */
+static int alc_auto_add_mic_boost(struct hda_codec *codec)
+{
+ struct alc_spec *spec = codec->spec;
+ int err;
+ hda_nid_t nid;
+
+ nid = spec->autocfg.input_pins[AUTO_PIN_MIC];
+ if (nid) {
+ err = add_control(spec, ALC_CTL_WIDGET_VOL,
+ "Mic Boost",
+ HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_INPUT));
+ if (err < 0)
+ return err;
+ }
+ nid = spec->autocfg.input_pins[AUTO_PIN_FRONT_MIC];
+ if (nid) {
+ err = add_control(spec, ALC_CTL_WIDGET_VOL,
+ "Front Mic Boost",
+ HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_INPUT));
+ if (err < 0)
+ return err;
+ }
+ return 0;
+}
+