ALSA: hda - Add reboot notifier to each codec
Add reboot notifier to each codec so that it can do some workarounds
needed for reboot.
So far, patch_sigmatel.c calls its shutup routine for avoiding noises
at reboot on some HP machines.
References: Novell bnc#544779
http://bugzilla.novell.com/show_bug.cgi?id=544779
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 2c13663..146f95b 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -3404,6 +3404,23 @@
}
}
+/* call each reboot notifier */
+void snd_hda_bus_reboot_notify(struct hda_bus *bus)
+{
+ struct hda_codec *codec;
+
+ if (!bus)
+ return;
+ list_for_each_entry(codec, &bus->codec_list, list) {
+#ifdef CONFIG_SND_HDA_POWER_SAVE
+ if (!codec->power_on)
+ continue;
+#endif
+ if (codec->patch_ops.reboot_notify)
+ codec->patch_ops.reboot_notify(codec);
+ }
+}
+
/*
* open the digital out in the exclusive mode
*/
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 99552fb..6240608 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -674,6 +674,7 @@
#ifdef CONFIG_SND_HDA_POWER_SAVE
int (*check_power_status)(struct hda_codec *codec, hda_nid_t nid);
#endif
+ void (*reboot_notify)(struct hda_codec *codec);
};
/* record for amp information cache */
@@ -910,6 +911,7 @@
* Misc
*/
void snd_hda_get_codec_name(struct hda_codec *codec, char *name, int namelen);
+void snd_hda_bus_reboot_notify(struct hda_bus *bus);
/*
* power management
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 55c7da3..0d3e0c9 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2150,6 +2150,7 @@
static int azx_halt(struct notifier_block *nb, unsigned long event, void *buf)
{
struct azx *chip = container_of(nb, struct azx, reboot_notifier);
+ snd_hda_bus_reboot_notify(chip->bus);
azx_stop_chip(chip);
return NOTIFY_OK;
}
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 3087705..9c33700 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -4831,6 +4831,7 @@
.suspend = stac92xx_suspend,
.resume = stac92xx_resume,
#endif
+ .reboot_notify = stac92xx_shutup,
};
static int patch_stac9200(struct hda_codec *codec)