ALSA: hda/realtek - Create mono volume controls for mono-outputs

When the pin or the DAC doesn't support the stereo, create a mono
control instead of creating a stereo control blindly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 9fc2ba0..6f0f2f6 100644 (file)
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3144,8 +3144,15 @@ static int alc_auto_add_vol_ctl(struct hda_codec *codec,
                                 val);
 }
 
-#define alc_auto_add_stereo_vol(codec, pfx, cidx, nid) \
-       alc_auto_add_vol_ctl(codec, pfx, cidx, nid, 3)
+static int alc_auto_add_stereo_vol(struct hda_codec *codec,
+                                  const char *pfx, int cidx,
+                                  hda_nid_t nid)
+{
+       int chs = 1;
+       if (get_wcaps(codec, nid) & AC_WCAP_STEREO)
+               chs = 3;
+       return alc_auto_add_vol_ctl(codec, pfx, cidx, nid, chs);
+}
 
 /* create a mute-switch for the given mixer widget;
  * if it has multiple sources (e.g. DAC and loopback), create a bind-mute
@@ -3177,8 +3184,14 @@ static int alc_auto_add_sw_ctl(struct hda_codec *codec,
        return __add_pb_sw_ctrl(codec->spec, type, pfx, cidx, val);
 }
 
-#define alc_auto_add_stereo_sw(codec, pfx, cidx, nid)  \
-       alc_auto_add_sw_ctl(codec, pfx, cidx, nid, 3)
+static int alc_auto_add_stereo_sw(struct hda_codec *codec, const char *pfx,
+                                 int cidx, hda_nid_t nid)
+{
+       int chs = 1;
+       if (get_wcaps(codec, nid) & AC_WCAP_STEREO)
+               chs = 3;
+       return alc_auto_add_sw_ctl(codec, pfx, cidx, nid, chs);
+}
 
 static hda_nid_t alc_look_for_out_mute_nid(struct hda_codec *codec,
                                           hda_nid_t pin, hda_nid_t dac)