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: Wu Fengguang <wfg@xxxxxxxxxxxxxxx>
---
sound/pci/hda/patch_intelhdmi.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
--- sound-2.6.orig/sound/pci/hda/patch_intelhdmi.c
+++ sound-2.6/sound/pci/hda/patch_intelhdmi.c
@@ -312,16 +312,16 @@ static void hdmi_write_dip_byte(struct h
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)
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