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
*/