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authorTakashi Iwai <tiwai@suse.de>2010-07-05 16:50:13 +0200
committerTakashi Iwai <tiwai@suse.de>2010-07-09 08:42:29 +0200
commitac0547dc62e67a3e0b0c1628b6e49efba8f517db (patch)
treedafd1c8283cc09c3eda5d8fc2a1d06ffeb0141c8 /sound/pci/hda/hda_codec.h
parentf189efcd1cc06b75fe18642c9751d26aa5ed2b54 (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.h5
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);