ALSA: hda - introduce HDA_SUBDEV_AMP_FLAG (ControlAmp in proc)

The purpose of this changeset is to show information about amplifier
setting in the codec proc file. Something like:

  Control: name="Front Playback Volume", index=0, device=0
    ControlAmp: chs=3, dir=Out, idx=0, ofs=0
  Control: name="Front Playback Switch", index=0, device=0
    ControlAmp: chs=3, dir=In, idx=2, ofs=0

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

1 files changed, 2 insertions, 0 deletions

diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c
index d0b8c6dc7322..e51f6658aa2c 100644
--- a/sound/pci/hda/patch_cirrus.c
+++ b/sound/pci/hda/patch_cirrus.c
@@ -500,6 +500,7 @@ static int add_mute(struct hda_codec *codec, const char *name, int index,
         knew.private_value = pval;
         snprintf(tmp, sizeof(tmp), "%s %s Switch", name, dir_sfx[dir]);
         *kctlp = snd_ctl_new1(&knew, codec);
+        (*kctlp)->id.subdevice = HDA_SUBDEV_AMP_FLAG;
         return snd_hda_ctl_add(codec, get_amp_nid_(pval), *kctlp);
 }
 
@@ -513,6 +514,7 @@ static int add_volume(struct hda_codec *codec, const char *name,
         knew.private_value = pval;
         snprintf(tmp, sizeof(tmp), "%s %s Volume", name, dir_sfx[dir]);
         *kctlp = snd_ctl_new1(&knew, codec);
+        (*kctlp)->id.subdevice = HDA_SUBDEV_AMP_FLAG;
         return snd_hda_ctl_add(codec, get_amp_nid_(pval), *kctlp);
 }