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| author | Takashi Iwai <tiwai@suse.de> | 2011-01-14 09:42:27 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-01-14 09:42:27 +0100 |
| commit | ad09fc9d2156f3d37537b34418a6b79309013d33 (patch) | |
| tree | e8e74b2d03c57802885f4487beb9d19eae615cf6 /sound/pci/hda/patch_hdmi.c | |
| parent | ALSA: hda - Add fixup-call in init callback (diff) | |
| download | linux-ad09fc9d2156f3d37537b34418a6b79309013d33.tar.xz linux-ad09fc9d2156f3d37537b34418a6b79309013d33.zip | |
ALSA: hda - Suppress the odd number of channels for HDMI
It looks like that HDMI codecs don't support the odd number of channels
although HD-audio spec doesn't have the restriction. Add the
hw_constraint to limit to only the even number of channels.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/patch_hdmi.c')
| -rw-r--r-- | sound/pci/hda/patch_hdmi.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c index f29b97b5de8f..2d288793ceb3 100644 --- a/sound/pci/hda/patch_hdmi.c +++ b/sound/pci/hda/patch_hdmi.c @@ -1238,6 +1238,9 @@ static int simple_playback_pcm_open(struct hda_pcm_stream *hinfo, snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, hw_constraints_channels); + } else { + snd_pcm_hw_constraint_step(substream->runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, 2); } return snd_hda_multi_out_dig_open(codec, &spec->multiout); |