ALSA: ice1724: Fix surround on Chaintech AV-710

Fix the num_total_dacs setting for Chaintech AV710. The existing comment
that only PSDOUT0 is connected is correct, but since the card is using
packed AC97 mode to send 6 channels to the codec, num_total_dacs should be
set to 6 and not 2. This allows 6-channel surround to work. Also clarify
a comment regarding the additional WM8728 codec on this card (it's connected
to the SPDIF output and always receives the same data).

Signed-off-by: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/ice1712/amp.c b/sound/pci/ice1712/amp.c
index 3756430..6da21a2 100644 (file)
--- a/sound/pci/ice1712/amp.c
+++ b/sound/pci/ice1712/amp.c
@@ -52,11 +52,13 @@ static int __devinit snd_vt1724_amp_init(struct snd_ice1712 *ice)
 
        /* only use basic functionality for now */
 
-       ice->num_total_dacs = 2;        /* only PSDOUT0 is connected */
+       /* VT1616 6ch codec connected to PSDOUT0 using packed mode */
+       ice->num_total_dacs = 6;
        ice->num_total_adcs = 2;
 
-       /* Chaintech AV-710 has another codecs, which need initialization */
-       /* initialize WM8728 codec */
+       /* Chaintech AV-710 has another WM8728 codec connected to PSDOUT4
+          (shared with the SPDIF output). Mixer control for this codec
+          is not yet supported. */
        if (ice->eeprom.subvendor == VT1724_SUBDEVICE_AV710) {
                for (i = 0; i < ARRAY_SIZE(wm_inits); i += 2)
                        wm_put(ice, wm_inits[i], wm_inits[i+1]);