src/patches/suse-2.6.27.31/patches.drivers/alsa-hda-realtek-mic-automute-fix

   1 From: Takashi Iwai <tiwai@suse.de>
   2 Subject: ALSA: hda - Disable broken mic auto-muting in Realtek codes
   3 Patch-mainline:
   4 References: bnc#440626
   5
   6 The recent addition of automatic mic-muting is broken in some cases.
   7 The code assumes that the pin nids <= 0x18, but the digital pins can
   8 be less than 0x18.
   9 Also, it assumes the front-mic being the internal mic, but it depends
  10 on the hardware implementation actually.
  11
  12 Instead of complex case-fixes, better to disable the code as now.
  13
  14 Signed-off-by: Takashi Iwai <tiwai@suse.de>
  15
  16 ---
  17  sound/pci/hda/patch_realtek.c |    6 ++++++
  18  1 file changed, 6 insertions(+)
  19
  20 --- a/sound/pci/hda/patch_realtek.c
  21 +++ b/sound/pci/hda/patch_realtek.c
  22 @@ -829,6 +829,7 @@ static void alc_sku_automute(struct hda_
  23                             spec->jack_present ? 0 : PIN_OUT);
  24  }
  25
  26 +#if 0 /* it's broken in some acses -- temporarily disabled */
  27  static void alc_mic_automute(struct hda_codec *codec)
  28  {
  29         struct alc_spec *spec = codec->spec;
  30 @@ -849,6 +850,9 @@ static void alc_mic_automute(struct hda_
  31         snd_hda_codec_amp_stereo(codec, 0x0b, HDA_INPUT, capsrc_idx_fmic,
  32                          HDA_AMP_MUTE, present ? HDA_AMP_MUTE : 0);
  33  }
  34 +#else
  35 +#define alc_mic_automute(codec) /* NOP */
  36 +#endif /* disabled */
  37
  38  /* unsolicited event for HP jack sensing */
  39  static void alc_sku_unsol_event(struct hda_codec *codec, unsigned int res)
  40 @@ -1060,12 +1064,14 @@ do_sku:
  41                         AC_VERB_SET_UNSOLICITED_ENABLE,
  42                         AC_USRSP_EN | ALC880_HP_EVENT);
  43
  44 +#if 0 /* it's broken in some acses -- temporarily disabled */
  45         if (spec->autocfg.input_pins[AUTO_PIN_MIC] &&
  46                 spec->autocfg.input_pins[AUTO_PIN_FRONT_MIC])
  47                 snd_hda_codec_write(codec,
  48                         spec->autocfg.input_pins[AUTO_PIN_MIC], 0,
  49                         AC_VERB_SET_UNSOLICITED_ENABLE,
  50                         AC_USRSP_EN | ALC880_MIC_EVENT);
  51 +#endif /* disabled */
  52
  53         spec->unsol_event = alc_sku_unsol_event;
  54  }