diff options
| author | Lydia Wang <lydiawang@viatech.com.cn> | 2009-10-10 11:07:37 (GMT) |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-10-11 15:55:00 (GMT) |
| commit | 173143791068ac9f155c378a591d0b3d6c4a45ca (patch) | |
| tree | b5d55c42d30b14ccaf4e24d5f2b503a0715eaf7b /sound/pci/hda/patch_via.c | |
| parent | f5271101faf1655d862849f42518c2a88ef394fb (diff) | |
| download | linux-fsl-qoriq-173143791068ac9f155c378a591d0b3d6c4a45ca.tar.xz | |
ALSA: HDA VIA: Add low current mode for power saving.
For VT1708B, VT1708S and VT1702, enter low current mode if no analog
stream is opened and all aa path mute.
Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn>
Signed-off-by: Logan Li <loganli@viatech.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/patch_via.c')
| -rw-r--r-- | sound/pci/hda/patch_via.c | 41 |
1 files changed, 35 insertions, 6 deletions
diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c index d6bee62..7ace0fc 100644 --- a/sound/pci/hda/patch_via.c +++ b/sound/pci/hda/patch_via.c @@ -783,6 +783,10 @@ static int via_playback_pcm_open(struct hda_pcm_stream *hinfo, struct snd_pcm_substream *substream) { struct via_spec *spec = codec->spec; + int idle = substream->pstr->substream_opened == 1 + && substream->ref_count == 0; + + analog_low_current_mode(codec, idle); return snd_hda_multi_out_analog_open(codec, &spec->multiout, substream, hinfo); } @@ -1089,6 +1093,11 @@ static int via_build_controls(struct hda_codec *codec) if (err < 0) return err; } + + /* init power states */ + set_jack_power_state(codec); + analog_low_current_mode(codec, 1); + via_free_kctls(codec); /* no longer needed */ return 0; } @@ -2312,6 +2321,17 @@ static struct hda_verb vt1708B_uniwill_init_verbs[] = { { } }; +static int via_pcm_open_close(struct hda_pcm_stream *hinfo, + struct hda_codec *codec, + struct snd_pcm_substream *substream) +{ + int idle = substream->pstr->substream_opened == 1 + && substream->ref_count == 0; + + analog_low_current_mode(codec, idle); + return 0; +} + static struct hda_pcm_stream vt1708B_8ch_pcm_analog_playback = { .substreams = 2, .channels_min = 2, @@ -2320,7 +2340,8 @@ static struct hda_pcm_stream vt1708B_8ch_pcm_analog_playback = { .ops = { .open = via_playback_pcm_open, .prepare = via_playback_multi_pcm_prepare, - .cleanup = via_playback_multi_pcm_cleanup + .cleanup = via_playback_multi_pcm_cleanup, + .close = via_pcm_open_close }, }; @@ -2342,8 +2363,10 @@ static struct hda_pcm_stream vt1708B_pcm_analog_capture = { .channels_max = 2, .nid = 0x13, /* NID to query formats and rates */ .ops = { + .open = via_pcm_open_close, .prepare = via_capture_pcm_prepare, - .cleanup = via_capture_pcm_cleanup + .cleanup = via_capture_pcm_cleanup, + .close = via_pcm_open_close }, }; @@ -2800,7 +2823,8 @@ static struct hda_pcm_stream vt1708S_pcm_analog_playback = { .ops = { .open = via_playback_pcm_open, .prepare = via_playback_pcm_prepare, - .cleanup = via_playback_pcm_cleanup + .cleanup = via_playback_pcm_cleanup, + .close = via_pcm_open_close }, }; @@ -2810,8 +2834,10 @@ static struct hda_pcm_stream vt1708S_pcm_analog_capture = { .channels_max = 2, .nid = 0x13, /* NID to query formats and rates */ .ops = { + .open = via_pcm_open_close, .prepare = via_capture_pcm_prepare, - .cleanup = via_capture_pcm_cleanup + .cleanup = via_capture_pcm_cleanup, + .close = via_pcm_open_close }, }; @@ -3236,7 +3262,8 @@ static struct hda_pcm_stream vt1702_pcm_analog_playback = { .ops = { .open = via_playback_pcm_open, .prepare = via_playback_multi_pcm_prepare, - .cleanup = via_playback_multi_pcm_cleanup + .cleanup = via_playback_multi_pcm_cleanup, + .close = via_pcm_open_close }, }; @@ -3246,8 +3273,10 @@ static struct hda_pcm_stream vt1702_pcm_analog_capture = { .channels_max = 2, .nid = 0x12, /* NID to query formats and rates */ .ops = { + .open = via_pcm_open_close, .prepare = via_capture_pcm_prepare, - .cleanup = via_capture_pcm_cleanup + .cleanup = via_capture_pcm_cleanup, + .close = via_pcm_open_close }, }; |