ALSA: hda-intel: reorder HDMI audio enabling sequence

Reorder HDMI audio enabling sequence so that
	1) the sink knows about the coming audio stream
	2) unmute
	3) start transferring audio samples

The theory is that in the path A=>B=>C, we first make C ready, and then
enable B, and lastly allow A to send audio samples.
Signed-off-by: NWu Fengguang <wfg@linux.intel.com>
Signed-off-by: NTakashi Iwai <tiwai@suse.de>

sound/pci/hda/patch_intelhdmi.c

@@ -312,16 +312,16 @@ static void hdmi_write_dip_byte(struct hda_codec *codec, hda_nid_t nid,
 
 static void hdmi_enable_output(struct hda_codec *codec)
 {
-	/* Enable pin out and unmute */
-	snd_hda_sequence_write(codec, pinout_enable_verb);
-	if (get_wcaps(codec, PIN_NID) & AC_WCAP_OUT_AMP)
-		snd_hda_codec_write(codec, PIN_NID, 0,
-				AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
-
 	/* Enable Audio InfoFrame Transmission */
 	hdmi_set_dip_index(codec, PIN_NID, 0x0, 0x0);
 	snd_hda_codec_write(codec, PIN_NID, 0, AC_VERB_SET_HDMI_DIP_XMIT,
 						AC_DIPXMIT_BEST);
+	/* Unmute */
+	if (get_wcaps(codec, PIN_NID) & AC_WCAP_OUT_AMP)
+		snd_hda_codec_write(codec, PIN_NID, 0,
+				AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
+	/* Enable pin out */
+	snd_hda_sequence_write(codec, pinout_enable_verb);
 }
 
 static void hdmi_disable_output(struct hda_codec *codec)