diff options
| author | Takashi Iwai <tiwai@suse.de> | 2010-07-05 16:50:13 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-07-09 08:42:29 +0200 |
| commit | ac0547dc62e67a3e0b0c1628b6e49efba8f517db (patch) | |
| tree | dafd1c8283cc09c3eda5d8fc2a1d06ffeb0141c8 /sound/pci/hda/hda_codec.h | |
| parent | f189efcd1cc06b75fe18642c9751d26aa5ed2b54 (diff) | |
ALSA: hda - Restore cleared pin controls on resume
Many codecs now clear the pin controls at suspend via snd_hda_shutup_pins()
for reducing the click noise at power-off. But this leaves some pins
uninitialized, and they'll be never recovered after resume.
This patch adds the proper recovery of cleared pin controls on resume.
Also it adds a check of bus->shutdown so that pins won't be cleared at
module unloading.
Reference: Kernel bug 16339
http://bugzilla.kernel.org/show_bug.cgi?id=16339
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_codec.h')
| -rw-r--r-- | sound/pci/hda/hda_codec.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 49e939e7e5c..5991d14e1ec 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -821,6 +821,7 @@ struct hda_codec { unsigned int pin_amp_workaround:1; /* pin out-amp takes index * (e.g. Conexant codecs) */ + unsigned int pins_shutup:1; /* pins are shut up */ unsigned int no_trigger_sense:1; /* don't trigger at pin-sensing */ #ifdef CONFIG_SND_HDA_POWER_SAVE unsigned int power_on :1; /* current (global) power-state */ @@ -897,7 +898,9 @@ void snd_hda_codec_resume_cache(struct hda_codec *codec); /* the struct for codec->pin_configs */ struct hda_pincfg { hda_nid_t nid; - unsigned int cfg; + unsigned char ctrl; /* current pin control value */ + unsigned char pad; /* reserved */ + unsigned int cfg; /* default configuration */ }; unsigned int snd_hda_codec_get_pincfg(struct hda_codec *codec, hda_nid_t nid); |