ALSA: hda - Fix the silent front with independent-HP for VIA codecs

Unmute DAC on front speaker path when Independent HP is enabled.

When to enable Independent HP, the front speaker won't output any sound
for VT1708, VT1708B, VT1708S and VT1702.
I find the via_independent_hp_put() routine will mute DAC 0 path in Mixer 0.
For these codecs, when using Independent HP, there could have two
independent streams, one is from DAC0-->Mixer0-->Front Pin, the other is
from DAC3-->GainSW3-->Side Pin.
So I added a check for DAC-->Mixer path in activate_output_path().

If current path is DAC-->Mixer, no need to mute DAC index in Mixer.
In fact, to change connection of Headphone pin or Mux connected with HP
is enough.

Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index 5ef14dd7a568cc476ca0dded68ca0f78280f6010..bbbc4f4cbf1a7a78c8a9b561989132753d94ab6e 100644 (file)
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -451,6 +451,9 @@ static void activate_output_path(struct hda_codec *codec, struct nid_path *path,
                if (enable && path->multi[i])
                        snd_hda_codec_write(codec, dst, 0,
                                            AC_VERB_SET_CONNECT_SEL, idx);
+               if (get_wcaps_type(get_wcaps(codec, src)) == AC_WID_AUD_OUT &&
+                   get_wcaps_type(get_wcaps(codec, dst)) == AC_WID_AUD_MIX)
+                       continue;
                if (have_mute(codec, dst, HDA_INPUT)) {
                        int val = enable ? AMP_IN_UNMUTE(idx) :
                                AMP_IN_MUTE(idx);