ALSA: hda - Improve auto-cfg mixer name for ALC662

The last patch in this series is for ALC662; pretty similar as the
previous patch for ALC861-VD.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/patch_realtek.c

@@ -17018,13 +17018,25 @@ static int alc662_auto_create_multi_out_ctls(struct alc_spec *spec,
 			if (err < 0)
 				return err;
 		} else {
-			sprintf(name, "%s Playback Volume", chname[i]);
+			const char *pfx;
+			if (cfg->line_outs == 1 &&
+			    cfg->line_out_type == AUTO_PIN_SPEAKER_OUT) {
+				if (!cfg->hp_pins)
+					pfx = "Speaker";
+				else
+					pfx = "PCM";
+			} else
+				pfx = chname[i];
+			sprintf(name, "%s Playback Volume", pfx);
 			err = add_control(spec, ALC_CTL_WIDGET_VOL, name,
 					  HDA_COMPOSE_AMP_VAL(nid, 3, 0,
 							      HDA_OUTPUT));
 			if (err < 0)
 				return err;
-			sprintf(name, "%s Playback Switch", chname[i]);
+			if (cfg->line_outs == 1 &&
+			    cfg->line_out_type == AUTO_PIN_SPEAKER_OUT)
+				pfx = "Speaker";
+			sprintf(name, "%s Playback Switch", pfx);
 			err = add_control(spec, ALC_CTL_WIDGET_MUTE, name,
 				HDA_COMPOSE_AMP_VAL(alc880_idx_to_mixer(i),
 						    3, 0, HDA_INPUT));