ALSA: hda - Add a fake mute feature

[pandora-kernel.git] / sound / pci / hda / patch_conexant.c

diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 08bad5b..ae94929 100644 (file)
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -4132,7 +4132,8 @@ static int cx_auto_add_volume_idx(struct hda_codec *codec, const char *basename,
                err = snd_hda_ctl_add(codec, nid, kctl);
                if (err < 0)
                        return err;
-               if (!(query_amp_caps(codec, nid, hda_dir) & AC_AMPCAP_MUTE))
+               if (!(query_amp_caps(codec, nid, hda_dir) &
+                     (AC_AMPCAP_MUTE | AC_AMPCAP_MIN_MUTE)))
                        break;
        }
        return 0;
@@ -4425,6 +4426,22 @@ static const struct snd_pci_quirk cxt_fixups[] = {
        {}
 };
 
+/* add "fake" mute amp-caps to DACs on cx5051 so that mixer mute switches
+ * can be created (bko#42825)
+ */
+static void add_cx5051_fake_mutes(struct hda_codec *codec)
+{
+       static hda_nid_t out_nids[] = {
+               0x10, 0x11, 0
+       };
+       hda_nid_t *p;
+
+       for (p = out_nids; *p; p++)
+               snd_hda_override_amp_caps(codec, *p, HDA_OUTPUT,
+                                         AC_AMPCAP_MIN_MUTE |
+                                         query_amp_caps(codec, *p, HDA_OUTPUT));
+}
+
 static int patch_conexant_auto(struct hda_codec *codec)
 {
        struct conexant_spec *spec;
@@ -4443,6 +4460,9 @@ static int patch_conexant_auto(struct hda_codec *codec)
        case 0x14f15045:
                spec->single_adc_amp = 1;
                break;
+       case 0x14f15051:
+               add_cx5051_fake_mutes(codec);
+               break;
        }
 
        apply_pin_fixup(codec, cxt_fixups, cxt_pincfg_tbl);