Imported linux-2.6.27.39 suse/xen patches.

[people/pmueller/ipfire-2.x.git] / src / patches / suse-2.6.27.39 / patches.drivers / alsa-hda-realtek-mic-automute-fix

From: Takashi Iwai <tiwai@suse.de>
Subject: ALSA: hda - Disable broken mic auto-muting in Realtek codes
Patch-mainline: 
References: bnc#440626

The recent addition of automatic mic-muting is broken in some cases.
The code assumes that the pin nids <= 0x18, but the digital pins can
be less than 0x18.
Also, it assumes the front-mic being the internal mic, but it depends
on the hardware implementation actually.

Instead of complex case-fixes, better to disable the code as now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

---
 sound/pci/hda/patch_realtek.c |    6 ++++++
 1 file changed, 6 insertions(+)

--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -829,6 +829,7 @@ static void alc_sku_automute(struct hda_
 			    spec->jack_present ? 0 : PIN_OUT);
 }
 
+#if 0 /* it's broken in some acses -- temporarily disabled */
 static void alc_mic_automute(struct hda_codec *codec)
 {
 	struct alc_spec *spec = codec->spec;
@@ -849,6 +850,9 @@ static void alc_mic_automute(struct hda_
 	snd_hda_codec_amp_stereo(codec, 0x0b, HDA_INPUT, capsrc_idx_fmic,
 			 HDA_AMP_MUTE, present ? HDA_AMP_MUTE : 0);
 }
+#else
+#define alc_mic_automute(codec) /* NOP */
+#endif /* disabled */
 
 /* unsolicited event for HP jack sensing */
 static void alc_sku_unsol_event(struct hda_codec *codec, unsigned int res)
@@ -1060,12 +1064,14 @@ do_sku:
 			AC_VERB_SET_UNSOLICITED_ENABLE,
 			AC_USRSP_EN | ALC880_HP_EVENT);
 
+#if 0 /* it's broken in some acses -- temporarily disabled */
 	if (spec->autocfg.input_pins[AUTO_PIN_MIC] &&
 		spec->autocfg.input_pins[AUTO_PIN_FRONT_MIC])
 		snd_hda_codec_write(codec,
 			spec->autocfg.input_pins[AUTO_PIN_MIC], 0,
 			AC_VERB_SET_UNSOLICITED_ENABLE,
 			AC_USRSP_EN | ALC880_MIC_EVENT);
+#endif /* disabled */
 
 	spec->unsol_event = alc_sku_unsol_event;
 }