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authorTakashi Iwai <tiwai@suse.de>2009-11-10 16:02:29 +0100
committerTakashi Iwai <tiwai@suse.de>2009-11-10 16:02:29 +0100
commitfb8d1a344dbe963f16249d07eee8415e93f9f3c2 (patch)
tree710c945e207bbb3aa2998a4ce861dd302cb7d080 /sound/pci/hda/hda_codec.c
parent167eae5a17b3cd44a324dbb972c338e489413f54 (diff)
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>
Diffstat (limited to 'sound/pci/hda/hda_codec.c')
-rw-r--r--sound/pci/hda/hda_codec.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 2c1366343335..146f95be8737 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -3404,6 +3404,23 @@ static void cleanup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid)
}
}
+/* 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
*/