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authorTakashi Iwai <tiwai@suse.de>2009-12-25 22:49:01 +0100
committerTakashi Iwai <tiwai@suse.de>2009-12-25 22:49:01 +0100
commit729d55ba972348234759f8e40abf8de020f0d505 (patch)
tree3550e86c5937ec88033932782fafda7f631ffe3c /sound
parentef18beded8ddbaafdf4914bab209f77e60ae3a18 (diff)
downloadlinux-2.6.34-ux500-729d55ba972348234759f8e40abf8de020f0d505.tar.gz
ALSA: hda - Disable tigger at pin-sensing on AD codecs
Analog Device codecs seem to have problems with the triggering of pin-sensing although their pincaps give the trigger requirements. Some reported that constant CPU load on HP laptops with AD codecs. For avoiding this regression, add a flag to codec struct to notify explicitly that the codec doesn't suppot the trigger at pin-sensing. Tested-by: Maciej Rutecki <maciej.rutecki@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/hda_codec.c10
-rw-r--r--sound/pci/hda/hda_codec.h1
-rw-r--r--sound/pci/hda/patch_analog.c16
3 files changed, 23 insertions, 4 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 950ee5cfcac..f98b47cd6cf 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1327,11 +1327,13 @@ EXPORT_SYMBOL_HDA(snd_hda_query_pin_caps);
*/
u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid)
{
- u32 pincap = snd_hda_query_pin_caps(codec, nid);
-
- if (pincap & AC_PINCAP_TRIG_REQ) /* need trigger? */
- snd_hda_codec_read(codec, nid, 0, AC_VERB_SET_PIN_SENSE, 0);
+ u32 pincap;
+ if (!codec->no_trigger_sense) {
+ pincap = snd_hda_query_pin_caps(codec, nid);
+ if (pincap & AC_PINCAP_TRIG_REQ) /* need trigger? */
+ snd_hda_codec_read(codec, nid, 0, AC_VERB_SET_PIN_SENSE, 0);
+ }
return snd_hda_codec_read(codec, nid, 0,
AC_VERB_GET_PIN_SENSE, 0);
}
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 1d541b7f554..0a770a28e71 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -817,6 +817,7 @@ struct hda_codec {
unsigned int pin_amp_workaround:1; /* pin out-amp takes index
* (e.g. Conexant codecs)
*/
+ 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 */
unsigned int power_transition :1; /* power-state in transition */
diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 1a36137e13e..69a941c7b15 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -1186,6 +1186,8 @@ static int patch_ad1986a(struct hda_codec *codec)
*/
spec->multiout.no_share_stream = 1;
+ codec->no_trigger_sense = 1;
+
return 0;
}
@@ -1371,6 +1373,8 @@ static int patch_ad1983(struct hda_codec *codec)
codec->patch_ops = ad198x_patch_ops;
+ codec->no_trigger_sense = 1;
+
return 0;
}
@@ -1813,6 +1817,9 @@ static int patch_ad1981(struct hda_codec *codec)
codec->patch_ops.unsol_event = ad1981_hp_unsol_event;
break;
}
+
+ codec->no_trigger_sense = 1;
+
return 0;
}
@@ -3118,6 +3125,8 @@ static int patch_ad1988(struct hda_codec *codec)
#endif
spec->vmaster_nid = 0x04;
+ codec->no_trigger_sense = 1;
+
return 0;
}
@@ -3330,6 +3339,8 @@ static int patch_ad1884(struct hda_codec *codec)
codec->patch_ops = ad198x_patch_ops;
+ codec->no_trigger_sense = 1;
+
return 0;
}
@@ -4287,6 +4298,8 @@ static int patch_ad1884a(struct hda_codec *codec)
break;
}
+ codec->no_trigger_sense = 1;
+
return 0;
}
@@ -4623,6 +4636,9 @@ static int patch_ad1882(struct hda_codec *codec)
spec->mixers[2] = ad1882_6stack_mixers;
break;
}
+
+ codec->no_trigger_sense = 1;
+
return 0;
}