diff options
| author | Stephen Warren <swarren@nvidia.com> | 2011-06-01 11:14:18 -0600 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-06-06 12:51:59 +0200 |
| commit | 74b654c957e901e7596ebc7b9f5a1bea62b20509 (patch) | |
| tree | 2ae316f1b481c0ad4a84c1caff9b99ca57fe63ba /sound/pci/hda/patch_sigmatel.c | |
| parent | 7c9359762797ba7a70bbaa6364aaecc16786ac83 (diff) | |
ALSA: hda: Virtualize SPDIF out controls
The SPDIF output controls apply to converter widgets. A future change
will create a PCM device per pin widget, and hence a set of SPDIF output
controls per pin widget, for certain HDMI codecs. To support this, we
need the ability to virtualize the SPDIF output controls. Specifically:
* Controls can be "unassigned" from real hardware when a converter is
not used for the PCM the control was created for.
* Control puts only write to hardware when they are assigned.
* Controls can be "assigned" to real hardware when a converter is picked
to support output for a particular PCM.
* When a converter is assigned, the hardware is updated to the cached
configuration.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/patch_sigmatel.c')
| -rw-r--r-- | sound/pci/hda/patch_sigmatel.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 7f81cc2274f..7407095cbc7 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -1112,7 +1112,9 @@ static int stac92xx_build_controls(struct hda_codec *codec) } if (spec->multiout.dig_out_nid) { - err = snd_hda_create_spdif_out_ctls(codec, spec->multiout.dig_out_nid); + err = snd_hda_create_spdif_out_ctls(codec, + spec->multiout.dig_out_nid, + spec->multiout.dig_out_nid); if (err < 0) return err; err = snd_hda_create_spdif_share_sw(codec, |