src/patches/suse-2.6.27.39/patches.drivers/alsa-post-ga-hda-reboot-notify

   1 From: Takashi Iwai <tiwai@suse.de>
   2 Subject: ALSA: hda - Add reboot notifier to each codec
   3 Patch-mainline:
   4 References: bnc#544779
   5
   6 Add reboot notifier to each codec so that it can do some workarounds
   7 needed for reboot.
   8 So far, patch_sigmatel.c calls its shutup routine for avoiding noises
   9 at reboot on some HP machines.
  10
  11 Signed-off-by: Takashi Iwai <tiwai@suse.de>
  12
  13 ---
  14  sound/pci/hda/hda_codec.c      |   17 +++++++++++++++++
  15  sound/pci/hda/hda_codec.h      |    2 ++
  16  sound/pci/hda/hda_intel.c      |    1 +
  17  sound/pci/hda/patch_sigmatel.c |    1 +
  18  4 files changed, 21 insertions(+)
  19
  20 --- a/sound/pci/hda/hda_codec.c
  21 +++ b/sound/pci/hda/hda_codec.c
  22 @@ -3402,6 +3402,23 @@
  23         array->list = NULL;
  24  }
  25
  26 +/* call each reboot notifier */
  27 +void snd_hda_bus_reboot_notify(struct hda_bus *bus)
  28 +{
  29 +       struct hda_codec *codec;
  30 +
  31 +       if (!bus)
  32 +               return;
  33 +       list_for_each_entry(codec, &bus->codec_list, list) {
  34 +#ifdef CONFIG_SND_HDA_POWER_SAVE
  35 +               if (!codec->power_on)
  36 +                       continue;
  37 +#endif
  38 +               if (codec->patch_ops.reboot_notify)
  39 +                       codec->patch_ops.reboot_notify(codec);
  40 +       }
  41 +}
  42 +
  43  /*
  44   * used by hda_proc.c and hda_eld.c
  45   */
  46 --- a/sound/pci/hda/hda_codec.h
  47 +++ b/sound/pci/hda/hda_codec.h
  48 @@ -724,6 +724,7 @@
  49  #ifdef CONFIG_SND_HDA_POWER_SAVE
  50         int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
  51  #endif
  52 +       void (*reboot_notify)(struct hda_codec *codec);
  53  };
  54
  55  /* record for amp information cache */
  56 @@ -927,6 +928,7 @@
  57   * Misc
  58   */
  59  void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
  60 +void snd_hda_bus_reboot_notify(struct hda_bus *bus);
  61
  62  /*
  63   * power management
  64 --- a/sound/pci/hda/hda_intel.c
  65 +++ b/sound/pci/hda/hda_intel.c
  66 @@ -2107,6 +2107,7 @@
  67  static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
  68  {
  69         struct azx *chip = container_of(nb, struct azx, reboot_notifier);
  70 +       snd_hda_bus_reboot_notify(chip->bus);
  71         azx_stop_chip(chip);
  72         return NOTIFY_OK;
  73  }
  74 --- a/sound/pci/hda/patch_sigmatel.c
  75 +++ b/sound/pci/hda/patch_sigmatel.c
  76 @@ -4517,6 +4517,7 @@
  77         .suspend = stac92xx_suspend,
  78         .resume = stac92xx_resume,
  79  #endif
  80 +       .reboot_notify = stac92xx_shutup,
  81  };
  82
  83  static int patch_stac9200(struct hda_codec *codec)