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| author | Takashi Iwai <tiwai@suse.de> | 2011-09-27 17:33:45 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-09-27 17:33:45 +0200 |
| commit | 218264ae9ab3e12a785e1faeb2e15c8ae7172863 (patch) | |
| tree | fe2e22fefa237cbf6e8e90da967aa89dd2c76ee1 | |
| parent | 5ec02a1cfa9497f585721ec775c9b3e2783ff6fb (diff) | |
| download | op-kernel-dev-218264ae9ab3e12a785e1faeb2e15c8ae7172863.zip op-kernel-dev-218264ae9ab3e12a785e1faeb2e15c8ae7172863.tar.gz | |
ALSA: hda - Avoid unnecessary verbs to clear PCM formats
Since really_cleanup_stream() is called from both purity_inactive_streams()
and hda_cleanup_all_streams(), the verbs to clear the PCM channel and
format may be called multiple times unnecessarily.
This patch adds checks to skip these unneeded verbs.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/pci/hda/hda_codec.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 6b611d5..e3db196 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -1491,8 +1491,11 @@ static void really_cleanup_stream(struct hda_codec *codec, struct hda_cvt_setup *q) { hda_nid_t nid = q->nid; - snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0); - snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0); + if (q->stream_tag || q->channel_id) + snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID, 0); + if (q->format_id) + snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, 0 +); memset(q, 0, sizeof(*q)); q->nid = nid; } |
